Impact velocity-dependence of the fragmentation of shock-resistant PMMA

Abstract : This work aims at studying the conditions for fragmentation and further crack arrest capability of shock-resistant PMMA under impact loading. Kalthoff and Winkler (KW) impact tests, which consist in impacting the edge of a double-notched plate, were carried out at various impact velocities. It is notably shown that the higher the impact velocity the larger the number of fragments. Moreover, depending on the impact velocity, changes in the crack path can be seen and thus in the mechanisms controlling the PMMA fracture can be further understood. Effect of impact velocities on PMMA fractography was then analysed using scanning electron microscope (SEM) which managed to observe different patterns of crack propagation.
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Submitted on : Friday, February 22, 2019 - 11:35:01 AM
Last modification on : Friday, January 10, 2020 - 9:09:46 PM

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  • HAL Id : hal-02045713, version 1

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N. Binti Mat Jali, Patrice Longère. Impact velocity-dependence of the fragmentation of shock-resistant PMMA. M2D2017, 7th International Conference on Mechanics and Materials in Design, Albufeira (Portugal), 11-15 June 2017, 2017, Albufeira, Portugal. ⟨hal-02045713⟩

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