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

by DatapointLabs6,761 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

Luke Perkins, Cornell University and Hubert Lobo, DatapointLabs. SPE ANTEC. 2005.

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

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DatapointLabs

DatapointLabs Technical Center for Materials is a US-based center of excellence for the measurement of physical properties of materials needed for product development, CAE, and R&D. With our testing services and software for materials, we help companies build enduring data collections that accurately represent the materials used in their products.

To date, more than 30,000 materials have flowed through the laboratory, providing data for over 1,200 companies around the world, including automotive, aerospace, appliance, biomedical, consumer products, electronics, and material supplier verticals. DatapointLabs offers TestPaks to provide CAE-ready material properties data for most major simulation software packages.

In 2018, DatapointLabs joined the Applus+ Group, a worldwide leader the testing, inspection and certification sector. In 2020, DatapointLabs celebrated 25 years of putting materials into product design.

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