Material Insights by Industry Segment

Consumer Products

Sort byDateViews

Characterization and Modeling of Non-linear Behavior of Plastics 

by DatapointLabs6,057 views

A considerable amount of CAE today is devoted to the simulation of non-metallic materials, many of which exhibit non-linear behavior. However, most material models to date are still based on metals theory. This places severe restrictions on the proper description of their behavior in CAE. In this paper, we describe non-linear elastic behavior and its interrelationship with plastic behavior in plastics. Special attention is given to the differentiation between visco-elastic (recoverable) strain and plastic (non-recoverable) strain. The goal of this work is to have a material model for plastics that can describe both loading and unloading behavior accurately and provide an accurate measure of damage accumulation during complex loading operations.

Read full post
AbaqusAerospace and DefenseAutomotiveBiomedicalConsumer ProductsHome AppliancesMaterial SupplierNonlinear Material ModelsPackagingPlasticsResearch PapersRubbersStructural 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.

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

A Novel Technique to Measure Tensile Properties of Plastics at High Strain Rates

by DatapointLabs6,760 views

High strain-rate properties have many applications in the simulation of automotive crash and product drop testing. These properties are difficult to measure. These difficulties result from inaccuracies in extensometry at high strain rates due to extensometer slippage and background noise due to the sudden increase in stress at the start of the test. To eliminate these inaccuracies we use an inferential technique that correlates strain to extension at low strain rates and show that this can be extended to measure strain at higher strain rates

Read full post
ANSYSAbaqusAerospace and DefenseAutomotiveConsumer ProductsHigh Speed TestingHome AppliancesLS-DYNAMSC.DYTRANMaterial SupplierMechanicalNonlinear Material ModelsPAM-CRASHPackagingPlasticsRate DependencyResearch PapersStructural AnalysisToys/Sporting Goods