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Ductile to brittle transition concept on fracture behavior of poly(vinylidene fluoride) / poly(methyl methacrylate) blends

Abstract : The fracture behavior of blends of poly(ninylidene fluoride) (PVDF) and poly(methyl methacrylate) (PMMA) was investigated by gradually increasing the PVDF content. The study focuses on semi-crystalline blends. The trends of net stress versus crack opening displacement curves were analyzed. From these plots, two fracture energies were defined: the fracture energy to crack initiation corresponding to the area under the curve up to the maximum net stress and the fracture energy to crack propagation considering the last part of the curve where the load continuously decreases. Fracture surface inspections confirmed typical semi-crystalline polymer features. Critical values of the degree of crystallinity corresponding to brittle to ductile transition were determined, depending on the selected fracture energy
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Submitted on : Thursday, November 14, 2013 - 2:50:53 PM
Last modification on : Saturday, April 24, 2021 - 6:40:04 PM
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  • HAL Id : hal-00853452, version 1

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Lucien Laiarinandrasana, Yannick Nziakou, Jean Louis Halary. Ductile to brittle transition concept on fracture behavior of poly(vinylidene fluoride) / poly(methyl methacrylate) blends. 13th international conference on fracture, Jun 2013, Beijing, China. 8 p. ⟨hal-00853452⟩

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