Description
Real-world problems are rarely linear or static. Nonlinearities often impact the prediction of a product's behavior in unpredictable ways. These add uncertainty and risk to decisions made from either virtual or physical test results for engineers and designers who don't understand them. In this presentation we’ll use Inventor Nastran software to mid-surface a thin-walled assembly and weld the parts together. We’ll then go through the process of validating our model and then performing a nonlinear static analysis with linear and then nonlinear materials. Once the existing design is validated, we’ll perform a light-weighting design optimization to reduce the assembly’s weight, and then we’ll perform a nonlinear verification analysis on the final, reduced-weight design.
Key Learnings
- Learn how to mid-surface and mesh solid geometry to generate a shell mesh.
- Learn how to connect shell meshed parts in an assembly using offset welded contact.
- Learn how to define nonlinear materials and large displacement effects, and perform a nonlinear analysis.
- Learn how to lightweight an existing shell meshed design using Autodesk Nastran SIMP Topology Optimization.
Speakers
- DWDavid WeinbergDavid Weinberg is currently a Senior Software Developer for Autodesk and was the former President/CEO and Founder NEi Software from 1991 to 2014 until the acquisition of NEi by Autodesk in May 2014. He was the primary developer for NEi Nastran and currently leads the team of developers for Autodesk Nastran. Prior to forming NEi Software he worked as an Aerospace Engineer for Boeing for over 15 years. He holds a Bachelor of Science degree in Aerospace Engineering from Embry-Riddle Aeronautical University. He has over 30 years’ experience in FEA simulation working as a user, developer, and instructor.
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