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Materiale Plastice
https://doi.org/10.37358/Mat.Plast.1964

Impact factor: 1.393

OSIM Nr. R102356
ISSN 0025-5289
ISSN 2668-8220 (online)
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Materiale Plastice, Volume 45, Issue 1, pp. (2008)




Evaluation of Dynamic Fracture Toughness and Weibull Master Curves of Polymethyl Methacrylate


Abstract:
In this paper, a methodology to evaluate the dynamic fracture toughness of polymethyl methacrylate (PMMA) is presented. The proposed methodology is based on a hybrid-numerical formulation and requires the evaluation of the dynamic stress intensity factor along the experimentally measured dynamic crack fronts, and the three-parameter Weibull stress model for brittle fracture. The apparent fracture toughness master curves are determined for Double Cantilever Beam (DCB) specimens of PMMA with different thickness. Keywords: dynamic fracture toughness, polymethyl methacrylate, Weibull master curve



Issue: 2008 Volume 45, Number 1
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