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OptiStruct - Equivalent Plastic Strain Response for Optimization

Equivalent plastic strain can be used as an internal response when a nonlinear response optimization is run using the equivalent static load method. This is made possible through the use of an approximated correlation between linear strain and plastic strain, which are calculated in the inner and outer loops respectively, of the ESL method.

Tips & Tricks

OptiStruct - Contact Pressure, Force as a Response for Optimization

Contact Pressure can be used as an internal response when a model with contact and optimization is run. Contact pressure response is activated using RTYPE=CNTP option. The PTYPE should be set to CONTACT and the corresponding CONTACT Bulk Data ID(s) can be referenced on the ATTi field.

Tips & Tricks

OptiStruct - Failure Response for Topology Optimization

Factor of Safety (FOS) and margin of safety (MOS) optimization responses are now available for Topology optimization. It is calculated using NORM approach on design domain. All optimization types are now supported including Topology.

Tips & Tricks

OptiStruct - Neuber Optimization Response in Nonlinear Subcase

Neuber Stress and Neuber Strain sensitivities are supported for optimization in small displacement NLSTAT. It was already supported for optimization in FASTCONT analysis. It is supported only for small displacement analysis, it is not supported for large displacement. Once Neuber response is defined, the material will be treated as linear and MATS1 props are used only for Neuber correction. It is supported for solids as well as shells. It is supported for all optimization types except topology & freesize optimization.

Tips & Tricks

OptiStruct - Manufacturing Constraints for Composite Optimization

Certain manufacturing constraints are important when designing composite laminates, like balancing of plies, thickness of plies, etc. ln OptiStruct, manufacturing constraints can be defined during free size optimization, shuffling optimization for a better manufacturability and desired stacking sequence. The following are some of the manufacturing constraints which can be used depending on the requirement.

Tips & Tricks

5 ways to optimize your design

Gauge optimization, size and shape, and shell optimization, can be used to improve an existing design without altering its overall architecture. 3D topology optimization can be used when a significant re-design is desired because it identifies the optimal load paths of a structure and recommend material reduction. The material layout produced in the 3D topology is then interpreted into a concept design which is dimensioned and fine-tuned with the gauge, size, and shape approaches resulting in a final structure. Do you want to learn how to execute all the techniques mentioned? Step-by-step tutorials are available now for download!

Tips & Tricks

HyperWorks for Aerospace Applications v2017

The HyperWorks for Aerospace self-paced course covers the critical processes used in the creation of FEA models in the Aerospace industry. This course contains 12 modules covering aspects from model setup to post processing. Each module contains background information on the tools used and practical exercises with recorded demonstrations to help you get familiar with the tools and processes. Note: This course requires a login to Connect to view.

eLearning

Introduction to OptiStruct for Structural Optimization

The purpose of this self paced course is to cover the basics of OptiStruct Optimization. The course contains modules introducing the basic optimization types and giving an over of each. Many exercises are available in the modules that use the See It, Try It methodology. See It allows you to watch a video demonstration of the exercise covered in the section, while Try It gives you a pdf and model to try it in the software on your own. Note: This course requires a login to Connect to view.

eLearning

Introduction to OptiStruct for Linear Analysis

The purpose of this self paced course is to cover the basic topics for OptiStruct Linear Analysis. The Setup sections will use the See It, Try It, Do It methodology to cover the concepts. See It allows you to watch a video demonstration of the exercise covered in the section. Note: This course requires a login to Connect to view.

eLearning

OptiStruct Lessons Learned from a Cambered Structure with Welds made Post-Decambering using Modchg

Problem Description - A pre-cambered trailer is loaded to nearly flat under 1g down by a permanent payload (large steel transformer oil reservoir box). - As the payload is loaded, the trailer is 'de-cambered." They payload is then welded in place to the trailer. - Other operational load cases are applied as the subsequent load cases to the de-cambering load. Topology optimization is conducted with responses from both de-cambering load case and subsequent load cases. - All subsequent analysis must take into account the de-cambering held in place by the welds. The de-camber is a "large displacement" formulation and the loading happens via sliding contact with the payload box.

Tips & Tricks

HyperWorks for Aerospace Applications v13

The HyperWorks for Aerospace self paced course covers the critical processes used in the creation of FEA models in the Aerospace industry. This course contains 12 modules covering aspects from model setup to post processing. Each module contains background information on the tools used and practical exercises with recorded demonstrations to help you get familiar with the tools and processes. Note: This course requires a Connect login to view.

eLearning

OptiStruct for Linear Analysis

The purpose of this self paced course is to cover the basic topics for OptiStruct Linear Analysis. The Setup sections will use the See It, Try It, Do It methodology to cover the concepts. See It allows you to watch a video demonstration of the exercise covered in the section.

eLearning
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