Witzgall C, Giolda J, Wartzack S (2022)
Publication Language: English
Publication Type: Journal article, Original article
Publication year: 2022
Book Volume: 162
Article Number: 104155
URI: https://www.sciencedirect.com/science/article/pii/S0734743X2200001X
DOI: 10.1016/j.ijimpeng.2022.104155
This paper describes how previous material damage due to cyclic loading can influence the failure properties of short-fibre reinforced thermoplastics under crash conditions. To enable these effects to be incorporated into numerical crash simulations, we present a mathematical failure model that takes fatigue damage into account. We perform an experimental study on the thermoplastic PBT GF30: We initially characterize the material under cyclic loading conditions. Subsequently, the behaviour of pre-damaged material specimens in highly dynamic loading experiments is compared to that of virgin specimens to determine the loss of strength due to fatigue damage. Based on the aforementioned experimental results, we develop, calibrate and implement an analytical model for use in the commercial software LS-DYNA.
APA:
Witzgall, C., Giolda, J., & Wartzack, S. (2022). A novel approach to incorporating previous fatigue damage into a failure model for short-fibre reinforced plastics. International Journal of Impact Engineering, 162. https://dx.doi.org/10.1016/j.ijimpeng.2022.104155
MLA:
Witzgall, Christian, Jessica Giolda, and Sandro Wartzack. "A novel approach to incorporating previous fatigue damage into a failure model for short-fibre reinforced plastics." International Journal of Impact Engineering 162 (2022).
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