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Damage at high strain rates in semi-crystalline polymers

Abstract : A specific damage characterization method using Digital Image Correlation for semi-crystalline polymers is proposed for a wide range of strain rates. This damage measurement is an extension of the SEĖ method [16] which was developed to characterize the behaviour laws at constant strain rates of polymeric materials. This procedure is compared to the well-known damage characterization by loss of stiffness technique under quasi-static loading. In addition, an in-situ tensile test, carried out in a microtomograph, is used to observe the cavitation phenomenon in real time. The different ways used to evaluate the damage evolution are compared and the proposed technique is also suitable for measuring the ductile damage observed in semi-crystalline polymers under dynamic loading.
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Contributor : Mylène Delrue Connect in order to contact the contributor
Submitted on : Friday, November 26, 2021 - 11:42:09 AM
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Romain Balieu, Franck Lauro, Bruno Bennani, Grégory Haugou, Fahmi Chaari, et al.. Damage at high strain rates in semi-crystalline polymers. International Journal of Impact Engineering, Elsevier, 2015, 76, pp.1-8. ⟨10.1016/j.ijimpeng.2014.08.013⟩. ⟨hal-03450984⟩



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