Material Insights by CAE Type

DIGIMAT

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Comments on the Testing and Management of Plastics Material Data 

by DatapointLabs6,670 views

Plastics appeared as design materials of choice about 30 years ago. They brought with them huge design challenges because their multi-variable, non-linear nature was not well understood by engineers trained to work in a linear elastic world. We outline a 20 year journey accompanying our customers in their efforts to understand and simulate these remarkable materials to produce the highly reliable plastic products of today. We discuss challenges related to processes such as injection molding vs. blow-molding; coping with filled plastics; the difficulties of modeling polymers for crash applications. We include our latest findings related to volumetric yield in polymers and its relationship to failure. We describe the material database technology that was created to store this kind of multi-variable data and the analytical tools created to help the CAE engineer understand and use plastics material data.

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ANSYSAbaqusAutomotiveBlow MoldingDIGIMATHigh Speed TestingInjection MoldingLS-DYNAMoldex3DMoldflowNonlinear Material ModelsPAM-CRASHPlasticsPresentationsStructural AnalysisUniversal CrashUniversal MoldingUniversal Structural

Testing for Crash & Safety Simulation

by DatapointLabs5,851 views

The testing of materials for use in crash and safety simulations and the conversion of test data into material models is a process that is not well standardized in the industry. Consequently, CAE users face uncertainty and risk in this process that can have a negative impact on simulation quality. In this workshop, we present approaches currently used in the US for the gathering of high quality test data plus the acclaimed Matereality CAE Modeler software that is used to transform high strain-rate data into crash material cards.

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ANSYSAbaqusAltair RADIOSSAutomotiveDIGIMATHigh Speed TestingLS-DYNANX NastranNonlinear Material ModelsPAM-CRASHPresentationsSIGMASOFTStructural Analysis

A Standardized Methodology for the DigimatMX Reverse Engineering Process 

by DatapointLabs5,361 views

We present a methodology for DIGIMAT users to perform the DIGIMAT MX reverse engineering process to obtain material parameter inputs for crash, elasto-plastic, creep and visco-elasticity. The injection-molding process used involves a standardized plaque geometry with fully developed flow, with test specimens taken from a specific plaque location. A standardized testing procedure is applied and the resulting DIGIMAT MX inputs are handled in a streamlined data stream, which saves time and improves the reliability of the reverse engineering process. The DIGIMAT MX reverse engineering itself can be performed as a service in collaboration with e-Xstream. This gives the user a speedy and tightly controlled process for performing complex finite element analysis with filled plastics

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Blow MoldingDIGIMATExtrusionHigh Speed TestingInjection MoldingNonlinear Material ModelsPresentationsStructural Analysis