Study of Material Modeling of Polymers for Impact Analysis

Kunio Takekoshi; Kazukuni Niwa

doi:10.4028/www.scientific.net/AMM.566.474

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 566Study of Material Modeling of Polymers for Impact...

Study of Material Modeling of Polymers for Impact Analysis

Abstract:

High-speed tensile tests were carried out to investigate strain rate effect on both yield stress and failure strain using ASTM D1822 Type-S specimens made of polycarbonate. Based on test results, parameters for a material model suitable for polymers are determined, and numerical analysis is carried out to simulate test results. The material model is used to simulate tensile test using a dog-bone specimen and Charpy test other than the tensile test of Type-S specimens. It is found that good predictions can be obtained when rate dependent material parameters are used. Further, the high-speed tensile test considered in the present study is suitable for selection of parameters for material modeling of polymers for impact analysis.

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Periodical:

Applied Mechanics and Materials (Volume 566)

Pages:

474-479

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.566.474

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Online since:

June 2014

Authors:

Kunio Takekoshi*, Kazukuni Niwa

Keywords:

Charpy Test, Failure Strain, Impact Analysis, Polymer, Strain Rate Effect, Tensile Test

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DOI: 10.21236/ad0144762

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