Battery Part 1: Developing Predictive Electro Thermal Cell Models for Pack Level Deployment

Martin Kemp, Regional Manager at Altair, Dr. Denis Cumming, a Senior Lecturer at The University of Sheffield, John Milios, CEO at Sendyne, Dr. Gregory Offer, Reader at Imperial College London and finally Professor Jun Xu, Director of Vehicle Energy & Safety Laboratory at The University of North Carolina, present - Developing Predictive Electro Thermal Cell Models for Pack Level Deployment. This presentation will focus on the simulation of the battery cell to represent its complex thermal and mechanical behaviour. The thermal behaviour requires the simulation of the electric behaviour within the cell which leads to the generation of heat. Managing the thermal behaviour is fundamental to the long term health of the battery. The talk provides an overview of the technologies used to simulate battery behaviour, commencing with the understanding of the battery structure including the simulation of electrode manufacture. Both electrochemical and equivalent circuit models will be discussed with the advantages and disadvantages of both methods presented. Finally, machine learning technology is used to create an intelligent cell model which retains accuracy whilst delivering computational efficiency which can be used in Part 2.


The Culmination of 30 Years' Investment in Productivity Tools

Altair CTO James Dagg presents an overview of the journey Altair took to develop the leading modeling and visualization technologies we have today, and provides a look at what’s coming next to help you reduce your product delivery time. James Dagg has been at Altair for more than 30 years and is a visionary behind Altair’s software strategy and development activities. He has also led the development of Altair’s concept design technologies and oversaw the development of Altair’s CAE software suite for more than a decade.


Evolution of Model Build at Jaguar Land Rover

In his presentation, Dr. Darren Ashby, CAE Group Leader at Jaguar Land Rover discusses some of the technological developments that have led to reduced meshing time and enhanced model quality at Jaguar Land Rover. Additionally he shares some thoughts on the direction of finite elements modelling, future functionalities, and new technologies which will enable further productivity gains at the company. Dr. Darren Ashby, CAE Group Leader at Jaguar Land Rover has been at the company for over 30 years, having joined as a technical apprentice and progressing to where he is now as the CAE Group Leader for Virtual Model Build and Analysis. He holds a PHD in philosophy focused in mechanical engineering from Coventry University.


Efficient Engineering Based Modeling of Layered Composite Structures

This presentation is by Program Manager Rob Jopson. It’s a given that the simulation models we build are intended to capture and predict physical behavior, the data used to create them is not always representative of the manufacturing process used to build the physical part. For layered composite parts in particular, this mismatch can cause significant overhead in managing the simulation data as the model is created and evolves. To solve this problem, Altair’s ply-based modeling methodology strives to maintain a 1:1 relationship between the simulation data and the manufacturing process, independent of solver. The latest developments of this methodology will be presented as a workflow in the new Composite Browser, available in HyperWorks. The recording is about 18 minutes long and was originally presented at the 2020 ATCx Composites.

ATC Presentations

End-to-end Workflow for Modeling Layered Composites in HyperWorks

This workshop on end-to-end workflow for modeling layered composites in HyperWorks was conducted by Program Manager André Möenicke. The recording is about an hour and 37 minutes long, and and was first presented at the 2020 ATCx Composites.

ATC Presentations

Altair HyperWorks - Hotspot Finder

Results port-processing in Altair HyperWorks includes the abiility to automatically identify and tag hotspots on contoured results. Users can easily customize their search paramenters, browse through results and query individual hotspots.

Use Cases

Altair HyperWorks - Report Generation

Altair HyperWorks post-processing capabilities include automated report generation. In very few clicks users can generate comprehensive reports of their analyses and export them to either an html summary or an MS PowerPoint slide deck.

Use Cases

Molding and Structural Simulation of Injection Molded Parts

This workshop on molding and structural simulation of injection molded parts was conducted by Frank Ehrhart, EMEA Technical Specialist - Material Engineering/Multiscale Designer. The recording is a little over an hour long, and and was first presented at the 2020 ATCx Composites.

ATC Presentations

VABS: Modeling Composite Beam-like Structures with 3D FEA Fidelity

Variational asymptotic beam section (VABS) is a unique technology continuously funded by the US Army since 1988 and it has become a tool of choice in the helicopter and wind turbine industries for modeling composite rotor blades. With analysis of a finite element meshed cross section, VABS can compute the best set of beam properties for 1D beam analysis and also accurately recover 3D stress/strain distribution over the cross section. VABS has been integrated with HyperWorks and OptiStruct for Altair users to take advantage of this powerful technology for better design and analysis of composite beam-like structures.  The recording of the presentation by Dr. Wenbin Yu, CTO of AnalySwift, is almost 20 minutes long, and was originally presented at the 2020 ATCx Composites.

ATC Presentations

End-to-end Workflow for Modeling Layered Composites in HyperWorks

This workshop on end-to-end workflow for modeling layered composites in HyperWorks was conducted by Program Manager Rob Jopson. The recording is about an hour and 32 minutes long, and and was first presented at the 2020 ATCx Composites.

ATC Presentations

Material Characterization / Virtual Testing

This workshop on material characterization/ virtual testing was conducted by Jeff Wollschlager, VP of Composites Technology. The recording is about an hour and 32 minutes long, and and was first presented at the 2020 ATCx Composites.

ATC Presentations

Composites at Altair

This presentation is by Markku Palanterä, Director Composites Business Development, Altair The composites design and simulation suite by Altair is actively developed with a holistic view to cover all stages of the process from material modeling all the way to the certification of composite structures. On the material modeling side, the focus is on continuous further development of Altair’s multiscale modeling technology for continuous fiber composites and injection molded plastics, but not forgetting further application areas, such as additive manufacturing. The ply-based composite modeling in Altair HyperWorks has recently undergone a major update to achieve an improved, more efficient modeling workflow. This together with planned further developments tie the modeling even better with the manufacturing to create realistic models of composite components as built. Altair’s solver technology for implicit and explicit analyses can utilize multiscale material models to accurately describe composite material nonlinear behavior up to failure. Altair’s unique composites optimization technology is being enhanced with the repeat laminate concept that provides added efficiency and user control over lay-up design. To further complement the idea of an integrated system with all the necessary composites capabilities, the Composite Stress Toolbox has been introduced in HyperWorks to support design and certification. The recording is about 22 minutes long and was originally presented at the 2020 ATCx Composites.

ATC Presentations

Multiscale Methods: from Theory to Practice

In this presentation, Dr Jacob Fish, Professor, Columbia University, introduces some of the key concepts and approaches in multiscale modeling, highlights recent advances aimed at developing practical multiscale tools, and survey the current landscape in multiscale modeling ranging from linking atomistic-to-continuum and continuum-to-continuum scales, physics and data-driven multiscale approaches, and applications in automotive, aerospace and biomedical industries. The recording is about 41 minutes long and was originally presented at the 2020 ATCx Composites.

ATC Presentations

Improved Workflow with Integrated Composite Stress Toolbox and Certification

This presentation is by André Mönicke, Program Manager Classical composite analysis and certification methods continue to be used in a significant share of the composite design process. In particular, applying classical methods early in design, and integrating them with finite methods as soon as possible can allow faster decisions which will be rewarded when it comes time for certification. Altair’s latest developments to respond to those needs will be presented, covering the Integrated Composite Stress Toolbox and a Certification framework available in HyperWorks. The recording is about 20 minutes long and was originally presented at the 2020 ATCx Composites.

ATC Presentations

Increasing the Efficiency of Damage Modeling for Filament Wound Pressure Vessels through Multiscale Simulation​

This presentation is by Dávid Migács, R&D Engineer at CIKONI GmbH. A key design issue for new hydrogen-based vehicle drive systems is assuring safety of the start-of-the-art polymer lined, carbon fiber overwrapped vessels working at pressures over 700 bar. Cikoni will describe how a multiscale approach gives a better estimation of burst pressures and insight into damage mechanisms for different laminate layups, at both the macroscopic and micromechanical levels, to validate simulation models for structural optimization of layups, along with life predictions. The recording is about 28 minutes long and was originally presented at the 2020 ATCx Composites.

ATC Presentations

Curing, Cracking and Distortions in Epoxy Composites. Simulating Manufacturing Processes using Finite Element Approach

This presentation is by Dr. Tomasz Garstka and Graham Barnes, LMAT Ltd. Manufacturing induced deformations and residual stresses are an unavoidable consequence of processing composites at elevated temperatures. A number of mechanisms have been identified causing residual stresses and distortions, including mismatch in the thermal expansion, cure shrinkage of the resin, consolidation and tool-part interaction. These mechanisms usually act collectively through the curing process and may lead to severe changes in the laminate characteristic. When cured and exposed to natural environment moisture swelling, as well as subsequent stress relaxation mechanisms lead to further geometrical changes. A novel cure simulation solver is demonstrated here with the application to typical aircraft components. The recording is about 10 minutes long and was originally presented at the 2020 ATCx Composites.

ATC Presentations

Altair HyperView™ – Design Sensitivity Analysis Utility

Design Sensitivity Analysis Utility • Design sensitivity represents a change in response with respect to a change in a design variable, which is typically used for optimization. • Design sensitivity can also be used as a diagnostic tool to understand what components in the system (through associated properties referenced by design variables) have controlling influence on the response in question. • Traditionally, design sensitivity can be cumbersome to request for frequency response analysis. It can only be requested as a part of an optimization run, where multiple design responses have to be created for each frequency response at each analysis frequency; objective function and constraints have to be defined and set in specific ways to force sensitivity output at all analysis frequencies for all design variables. • In HyperGraph 2D, the Design Sensitivity Analysis utility allows you to plot and rank design sensitivity curves from an OptiStruct dsa.0.h3d file.

Tips & Tricks

Altair HyperView™ – OrderCut Analysis Utility

OrderCut Analysis Utility • OrderCut Analysis utility generates and post-processes engine order related data from an OptiStruct or Nastran frequency response analysis that contains either RPM-based loading subcases or order-based loading subcases. • Background, engine related noise, and vibration problems are typically linked to engine orders that are harmonic multiples of the engine’s fundamental firing frequency. • Understanding the order content of the problem signal is a way to identify the physical phenomenon that is causing the problem. • To solve the problem, you can adjust the design parameters to modify the engine operation, which in turn reduces the problem orders.

Tips & Tricks

Altair HyperView™ – Multiple Sample Analysis Utility

Multiple Sample Analysis Utility • This utility allows to post-process results from a Multiple Sample Analysis (MSA), including plotting a spread of responses (+/-95% and mean). • You can choose Structures or Loads MSA processes: o Structures MSA processes results from a randomization of modal and connection parameters. o Loads MSA processes results from a randomization of wheel imbalance forces. • Sensitive parameters filtering is also supported for both Structures MSA and Loads MSA.

Tips & Tricks

Altair HyperView™ – Radiated Sound Utility

Radiated Sound Utility Radiated Sound Output using Rayleigh’s Integral can be requested for grid points on the structural surface and in the exterior acoustic field. Grid points are used to represent microphones that record the radiated sound, sound power, and sound intensity.

Tips & Tricks

Altair HyperView™ – Mount Optimization Utility

The Mount Optimization utility helps to predict powertrain rigid body modefrequencies and kinetic energy distribution, which play a critical role in optimizing themount stiffness and layout configuration, by decoupling powertrain rigid body modes andreducing vibration transmission.

Tips & Tricks

TGM Helps Customers Go Faster to Market with Topology Optimization

TGM Lightweight Solutions is an engineering services company with a focus on lightweight design and strategic weight optimization for aircraft, rail cars, road vehicles, and marine vessels. For a recent customer project requiring weight reduction of a railway container, TGM used Altair HyperWorks to achieve the target weight. Topology optimization helped identify the weight savings potential, resulting in material and cost savings, and a 20% reduction in weight while meeting tight development schedules.

Customer Stories

Altair HyperView™ – Integrated Diagnostics Utility

The Integrated Diagnostics utility allows you to: • Calculate response based on sensitivity and forces (power train and road) • Perform contribution analysis for responses calculated using sensitivity and forces • Plot and overlay response curves from an OptiStruct or Nastran punch file • Perform diagnostic studies using the diagnostic result from a solver or sensitivity • Perform study response changes

Tips & Tricks

Altair HyperView™ – Modal Participation Utility

Modal/Panel Participation Utility • The Modal/Panel Participation utility allows you to plot modal/panel participation curves from an OptiStruct .h3d file or an MSC Nastran .f06/.pch file. • Modal participation represents the complex contribution of a structure or fluid mode to a response. • Modal participation can be output from a modal frequency response analysis using the PFMODE output request card. • Panel contribution represents the complex contribution of all grids on a structural panel to a response. It can be output from a modal frequency response analysis using the PFPANEL output request card

Tips & Tricks

Altair HyperView™ – Grid Participation Utility

Grid Participation Utility The Grid Participation utility allows you to plot panel grid participation results and then use advanced scaling contour capabilities in HyperView to isolate key contributing areas. The files that are needed for post-processing are: • OptiStruct.h3d file: PFGRID.h3d - which contains the participation data output, as well as information regarding the fluid-structure grids and elements. • MSC Nastran .op2 file: PFGRID.h3d - which contains the participation data output, as well as information regarding the fluid-structure grids and elements. • OptiStruct punch file: PFGRID.pfmode.pch – which contains the participation data output. PFGRID.interface - which contains information regarding the fluid-structure interface grids and elements.

Tips & Tricks

Altair HyperView™ – Energy Distribution Utility

Energy Distribution Utility Visualize the distribution of energy within a full vehicle NVH model, as a way to understand what components are dominating the vehicle response.

Tips & Tricks

Altair HyperView™ – Transfer Path Analysis Utility

Transfer Path Analysis Utility The Transfer Path Analysis (TPA) utility identifies the complex contribution of the excited structure through attachment points to a response in the responding structure.

Tips & Tricks

Altair for Structures Applications

Altair offers industry-leading engineering analysis and optimization tools from simulation-driven design concepts to detailed virtual product validation, and simplified modeling workflows to advanced high-fidelity model building.


Marker Tracing in MediaView

Demonstration of a the new Marker Tracing features in MediaView for version 2020.

New Features

Reduction of Moving Masses – Streamlined Design for Improved Engine Performance

To expand the rpm range of a motorcycle engine, a new type of rocker arm with lower inertia was needed at KTM. The new rocker arm was required to have the same, or better stiffness and deformation level as the previous design. KTM used Altair HyperWorks™ for nonlinear topology optimization and nonlinear structural analysis to develop the new rocker arm. Thanks to this, the component inertia could be reduced by 15 percent, component mass was reduced by 21 percent, and the stiffness increased by 14 percent which lead to an extension of the rotational speed by 150-200 rpm.

Customer Stories

Enabling EV Excellence – Simulation Helps Rimac Improve Structural Design of Innovative Hypercar

Rimac Automobili’s main challenge has been to design a monocoque as a single carbon fiber part with an unprecedented size. Hence, in the development of the monocoque, the main topic to manage was the material, a lightweight, carbon fiber reinforced with epoxy resin. As this carbon fiber is an orthotropic and brittle material, its representation in a finite element (FE) material card is very difficult. To meet this challenge the company introduced Altair HyperWorks™ into their development process.

Customer Stories

Training - Lead Time reduction in report generation using HyperView Report

This session explains how HyperView Report tool can be helpful in standardization and reducing lead time in report creation.


Training- Post Processing For NVH - HyperView:NVD

Post Processing For NVH - HyperView:NVD


HyperView - Post Processing for Crash

Post Processing for Crash - HyperView

Training Materials, Webinars

Advanced CAE Post Processing Using Altair Compose

This session focuses primarily to illustrate how Altair Compose can act as a catalyst in CAE simulations, especially in post-processing aspects. Cases are demonstrated in Compose using its built-in capabilities like CAE readers, optimization, advanced math based scripting, signal processing, plotting/ visualization and many more to understand how Compose benefits the CAE simulations.


HyperView & HyperGraph Introduction v2019

In this course you will have the opportunity to learn about HyperView and HyperGraph in V2019. Modules contained within the course provide detailed descriptions of the tools and workflows within HyperView and HyperGraph. You will also have the opportunity to watch demonstrations and perform hands on exercises throughout the modules.


Altair HyperView – New Door Intrusion Tool

New door intrusion tool in HyperView.

Tips & Tricks

Altair HyperView – New MPDB Projection Tool

New MPDB projection tool in HyperView.

Tips & Tricks

Heavy Equipment Simulations: Multi-body, Hydraulics and DEM

Presenter: Ronald Kett, Technical Specialist, Altair

For a Stewart-Gough-Platform (Hexapod), various software tools were used to study and design highly dynamic hydraulic drives together with an overall system control. Calculation of Eigenfrequencies, control design and comparison, hydraulic system design, and overall simulation control were done in Altair Activate, the mechanics of the Stewart-Gough-Platform was taken from a CAD model into Altair Inspire Motion. The co-simulation between control + hydraulics and mechanics was performed using Activate and Altair MotionSolve. Altair HyperView and HyperGraph were used to analyze and visualize the results. With the highly integrated solutions, the results could be achieved within a very short time. The different types of models (linear/simplified/full mechanics/hydraulics) made it possible to start with fast development cycles and finally achieve reliable results.

ATC Presentations, Videos

Altair HyperView New Feature Overview

View a high level overview of the new features available within HyperView 2019.

New Features

Automating Structural Analysis of Satellites at OHB System AG

Mariana Mendes Leal, Structural Engineer at OHB System AG, talks about how they are able to automate their FE analysis workflow utilizing the Altair HyperWorks suite and tools like Altair’s Automated Report Director.

Customer Testimonials


Czech company Duratec Ltd. develops handmade bike frames using both aluminium and composite materials. For a recent project at Duratec presenting the latest approach in development of carbon fiber optimization of the bike frame, Altair HyperWorks was used for model creation in Altair HyperMesh, optimized via the Altair OptiStruct code and evaluated in Altair HyperView in the development and optimization of a lightweight composite racing bike frame.

Customer Stories


Israeli motorsport company Griiip has designed a new, fast and professional race car that combines efficiency in racing with a competitive purchase price and low running costs, to make it more affordable. By harnessing the power of data, Griiip has created the first smart connected race car – the G1 – and with it, an entirely new racing series. Accessing the software via Altair's new Startup Program, Griiip engineers employ several products from the Altair HyperWorks™ suite, among these Altair Radioss™ for crash simulation, Altair OptiStruct™ for structural optimization, general FE analysis as well as Altair HyperMesh™ and Altair HyperView™ for pre- and post-processing tasks in the development of race cars.

Customer Stories

Integrated Design and Engineering Solutions

Melbourne-based Integrated Design and Engineering Solutions (IDES) provides full “systems-life-cycle” tailored engineering solutions to fulfill demanding defence requirements. For the LAND 121 Phase 3A project involving the procurement of Mercedes-Benz G-Wagon light trucks for the Australian Army, the IDES team had to design a protective module for a G-Wagon variant intended for surveillance and reconnaissance (S&R). Altair HyperWorks was instrumental in enabling the quick, efficient and accurate development of an optimum design for the vehicle rollover protection structure (ROPS), saving valuable time while revising and significantly improving the structures’ strength and safety.

Customer Stories

SOGECLAIR aerospace

SOGECLAIR aerospace, part of the SOGECLAIR S.A. group, is a major engineering partner and prime contractor for the aerospace industry. For the design of an aircraft access door, to leverage the full potential of the combined methods of additive manufacturing and casting, SOGECLAIR used the Altair HyperWorks software suite for the design and optimization of the door.

Customer Stories, Customer Testimonials

Airbus Global Migration to Altair HyperWorks for Modeling and Visualization

Presentation by Christophe Rigou, Linear & Non-Linear Solutions - ESCSAN at Airbus.

To support the next aircraft development and new derivative programs, AIRBUS Commercial Aircraft division has chosen HyperMesh and HyperView pre&post-processing software developed by Altair. The Patran to HyperWorks migration project managed within the AIRBUS Engineering Airframe domain is seen as an important contributor to the Aircraft Programs development time reduction.

The first stream of this project is the replacement of Patran in its basic capabilities and the migration of specific AIRBUS functionalities, and the HyperWorks learning plan.

The second is about developments and enhancements around collaborative platform and simulation enablers.

On top of this project the vision of Airbus engineering is to drastically reduce the current product development plan by breaking silos and enhance cross collaboration between disciplines.

In the context of fast-changing technology and hard competitor’s landscape Airbus aircraft must put the simulation into its processes to speed-up the development from the pre-sizing to the certification phase but also in the meantime enables customers to improve maintenance and fleet efficiency.

ATC Presentations, Videos

Automatic Generation of Thousands of Linear Loadcase Combinations for Efficient OptiStruct Static Simulations and Post-treatment with HyperView

Presentation by Samuel Ducarouge, Mechanical Engineer at Air Liquide.

During Cryogenics Pipes mechanical analysis (Liquid Oxygen, Hydrogen or Helium transport) automatic generation of load case combinations has been needed in order to avoid error from "hand made" combinations, to gear up the results analysis by simplification of data combination in HyperView (time to display results has been reduced drastically) and to avoid conservatism by simplification of the combinations.

This presentation deals with pre- treatment and calcul in OptiStruct of the unitary load cases as well as load case combinations creation and calculation by using special tool developed by Altair.

ATC Presentations, Videos

Multibody Modeling of Armored Car at Off-road Conditions using MotionView

Presentation by Dr. Vadim Favorsky, Senior R&D Engineer at Plasan Sasa.

In this presentation results of multibody modeling are compared to experimental results of a middleweight armored car. The car prototype which was built by Plasan Sasa, has a monocoque chassis construction to save weight. This version has dependent solid axle suspension type for both front and rear; the suspensions were taken from Ford F550 heavy duty truck and were additionally strengthened and adopted due to increased weight.

ATC Presentations, Videos