Modified Essential Work of Fracture Model for Polymer Fracture

K. Duan, Xiao Hu, Gwidon Stachowiak

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9 Citations (Scopus)


The well-known essential work of fracture model, describing the linear relationship between fracture energy and un-cracked ligament length, is further extended to allow for any non-linearity in the relationship as this can potentially lead to a large error in determination of the essential work of fracture. Two different polymers, described in the literature, were chosen to show how the essential work of fracture of a polymer can still be determined in cases when a non-linearity exists in the relationship between fracture energy and ligament length. The new model specifies the condition under which the linear relationship exists, and the condition under which the non-linearity needs to be considered. (c) 2005 Elsevier Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)3172-3178
JournalComposites Science and Technology
Issue number16
Publication statusPublished - 2006


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