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High Strain-Rate Tensile Testing of Door Trim Materials
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English
Abstract
The objective of this study was to determine dynamic tensile characteristics of various door trim materials and to recommend a practical test methodology. In this study, Polypropylene (PP) and Acrilonitryl Butadiene Styrene (ABS) door trim materials were tested. Slow speed (quasi-static-0.021 mm/s) and high speed tests were conducted on a closed loop servo-hydraulic MTS system. The maximum stress of these materials increased from quasi-static to dynamic test conditions (as much as 100%). The dynamic stiffness of PP increased two times from quasi-static tests. No significant change in stiffness was observed for ABS during quasi-static and dynamic tests at different strain-rates. Quasi-static and medium strain-rate (10-20 mm/mm/s) tests may be adequate in providing data for characterizing the dynamic behavior of trim materials for CAE applications. Strain gages can be used to measure the quasi-static and in some cases, dynamic strain. Strain gage effect on material properties can be assessed by comparing the maximum stress from tests with and without strain gages.
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Authors
Citation
Sundararajan, S., Aekbote, K., Chou, C., Lim, G. et al., "High Strain-Rate Tensile Testing of Door Trim Materials," SAE Technical Paper 971064, 1997, https://doi.org/10.4271/971064.Also In
References
- Clark C. Johnson P.E. Frost C. “High Strain-Rate Characterization of Thermoplastics used for Energy Management Applications,” SAE Paper No. 940882 1994
- Ramamurthy A. C. Personal Communications