Hubert Lobo. Accurate FEA of Engineering Plastics, seminar hosted by CAE Associates. 2014.
strengthening the materials core of manufacturing enterprises
September 21, 2014 | by DatapointLabs | views 4319
Plastics exhibit non-linear viscoelastic behavior followed by a combination of deviatoric and volumetric plastic deformation until failure. Capturing these phenomena correctly in simulation presents a challenge because of the inadequacy of currently used material models. We follow an approach where we outline the general behavioral phenomena, then prescribe material models for handling different phases of plastics deformation. Edge cases will then be covered to complete the picture. Topics to be addressed include: Using elasto-plasticity; When to use hyperelasticity; Brittle polymers – filled plastics; Failure modes to consider; Criteria for survival; Choosing materials; Spatial non-isotropy from injection molding; Importance of residual stress; Visco-elastic and creep effects; Strain-rate effects for drop test and crash simulations; Fitting material data to FEA material models.
Hubert Lobo. Accurate FEA of Engineering Plastics, seminar hosted by CAE Associates. 2014.
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A Robust Methodology to Calibrate Crash Material Models for Polymers
High Speed Stress Strain Material Properties as Inputs for the Simulation of Impact Situations
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