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Predictors of Cavitation in Glassy Polymers under Tensile Strain: A Coarse‐Grained Molecular Dynamics Investigation by Ali Makke; Michel Perez; Jörg Rottler; Olivier Lame; Jean‐Louis Barrat is a Materials Science article available to read on EtoBox.

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## Abstract The nucleation of cavities in a homogeneous polymer under tensile strain is studied in a coarse‐grained MD simulation. To establish a causal relation between local microstructure and the onset of cavitation, a detailed analysis of some local properties is presented. In contrast to common assumptions, the nucleation of a cavity is neither correlated to a local loss of density nor to stress at the atomic scale or the chain‐end density in the nondeformed state. Instead, a cavity in glassy polymers nucleates in regions that display a low bulk elastic modulus. Even if the localization of a cavity is not directly predictable from the initial configuration, the elastically weak zones identified in the initial state emerge as favorite spots for cavity formation.magnified image

Who reads Predictors of Cavitation in Glassy Polymers under Tensile Strain: A Coarse‐Grained Molecular Dynamics Investigation?

Author

Ali Makke; Michel Perez; Jörg Rottler; Olivier Lame; Jean‐Louis Barrat

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley (ISSN 1022-1344)

Published

2011

Language

EN

Field

Materials Science (Physical Sciences)