Material Insights by CAE Type

Altair RADIOSS

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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

Behavior-based Material Model Selection and Calibration of Plastics for Crash Simulation 

by DatapointLabs5,560 views

Many material models are available for crash simulation. However, common models are not designed for plastics. We present best practices developed for adapting common models to plastics, as well as best testing protocols to generate clean, accurate rate-dependent data. In addition, we present a streamlined process to convert raw data to LS-DYNA material cards, and harmonized material datasets that allow the same raw data to be used for other crash and rate-dependent analysis software.

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ANSYSAbaqusAltair RADIOSSAutomotiveHigh Speed TestingLS-DYNANonlinear Material ModelsPAM-CRASHPlasticsPresentationsStructural Analysis

A Robust Methodology to Calibrate Crash Material Models for Polymers

by DatapointLabs6,875 views

High strain rate material modelling of polymers for use in crash and drop testing has been plagued by a number of problems. These include poor quality and noisy data, material models unsuited to polymer behaviour and unclear material model calibration guidelines. The modelling of polymers is thus a risky proposition with a highly variable success rate. In previous work, we tackled each of the above problems individually. In this paper, we summarize and then proceed to present a material modelling strategy that can be applied for a wide variety of polymers.

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ANSYSAbaqusAerospace and DefenseAltair RADIOSSAutomotiveConsumer ProductsHigh Speed TestingHome AppliancesIndustrial GoodsLS-DYNAMSC.DYTRANMaterial SupplierMechanicalNonlinear Material ModelsPAM-CRASHPackagingPlasticsResearch PapersStructural Analysis

Simulating Plastics in Drop and Crash Tests 

by DatapointLabs5,659 views

If you want a crash simulation involving plastics to yield useful results, it is important to model the material behavior appropriately. The high strain rates have a significant effect on the properties, and failure can be ductile or brittle in nature, depending on a number of factors.

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ANSYSAbaqusAerospace and DefenseAltair RADIOSSAutomotiveBiomedicalConsumer ProductsHigh Speed TestingIndustrial GoodsLS-DYNAMSC.DYTRANMaterial SupplierNonlinear Material ModelsPAM-CRASHPackagingPlasticsResearch PapersStructural AnalysisToys/Sporting Goods

Methodology for Selection of Material Models for Plastics Impact Simulation 

by DatapointLabs5,994 views

The volume of plastics that are subjected to impact simulation has grown rapidly. In a previous paper, we discussed why different material models are needed to describe the highly varied behavior exhibited by these materials. In this paper, we cover the subject in more detail, exploring in depth, the nuances of commonly used LS-DYNA material models for plastics, covering important exceptions and criteria related to their use.

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ANSYSAbaqusAerospace and DefenseAltair RADIOSSAutomotiveConsumer ProductsIndustrial GoodsLS-DYNAMaterial SupplierNonlinear Material ModelsPAM-CRASHPackagingPlasticsResearch PapersStructural Analysis