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Bulk fatigue damage evolution in polyamide-6 and in a polyamide-6 nanocomposite

2005; Wiley; Volume: 26; Issue: 5 Linguagem: Inglês

10.1002/pc.20126

1548-0569

Simon Bellemare, J.I. Dickson, Martin Bureau, Johanne Denault,

Structural Behavior of Reinforced Concrete

Polymer CompositesVolume 26, Issue 5 p. 636-646 Article Bulk fatigue damage evolution in polyamide-6 and in a polyamide-6 nanocomposite Simon C. Bellemare, Simon C. Bellemare Programme de Génie des Matériaux, École Polytechnique, C.P. 6079, Succ. Centre-Ville, Montréal, QC H3C 3A7, CanadaSearch for more papers by this authorJ. Ivan Dickson, J. Ivan Dickson Programme de Génie des Matériaux, École Polytechnique, C.P. 6079, Succ. Centre-Ville, Montréal, QC H3C 3A7, CanadaSearch for more papers by this authorMartin N. Bureau, Corresponding Author Martin N. Bureau martin.bureau@cnrc-nrc.gc.ca Industrial Materials Institute, National Research Council Canada, 75 de Mortagne, Boucherville, QC J4B 6Y4, CanadaIndustrial Materials Institute, National Research Council Canada, 75 de Mortagne, Boucherville, QC J4B 6Y4, CanadaSearch for more papers by this authorJohanne Denault, Johanne Denault Industrial Materials Institute, National Research Council Canada, 75 de Mortagne, Boucherville, QC J4B 6Y4, CanadaSearch for more papers by this author Simon C. Bellemare, Simon C. Bellemare Programme de Génie des Matériaux, École Polytechnique, C.P. 6079, Succ. Centre-Ville, Montréal, QC H3C 3A7, CanadaSearch for more papers by this authorJ. Ivan Dickson, J. Ivan Dickson Programme de Génie des Matériaux, École Polytechnique, C.P. 6079, Succ. Centre-Ville, Montréal, QC H3C 3A7, CanadaSearch for more papers by this authorMartin N. Bureau, Corresponding Author Martin N. Bureau martin.bureau@cnrc-nrc.gc.ca Industrial Materials Institute, National Research Council Canada, 75 de Mortagne, Boucherville, QC J4B 6Y4, CanadaIndustrial Materials Institute, National Research Council Canada, 75 de Mortagne, Boucherville, QC J4B 6Y4, CanadaSearch for more papers by this authorJohanne Denault, Johanne Denault Industrial Materials Institute, National Research Council Canada, 75 de Mortagne, Boucherville, QC J4B 6Y4, CanadaSearch for more papers by this author First published: 18 July 2005 https://doi.org/10.1002/pc.20126Citations: 6AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract The mechanical response of a polyamide-6 montmorillonite clay nanocomposite and of a polyamide-6 was monitored during axial fatigue tests performed at R-ratios of 0.1 and −1. For both materials, two transitions were usually observed in the evolution of all the stress-strain-time parameters studied after similar numbers of loading cycles, suggesting interrelationships between the mechanisms of molecular reorganization. Fatigue test monitoring indicated an initial decrease in the storage modulus and a subsequent trend for this modulus to increase, especially in polyamide-6. During all tests, a partially recoverable strain was accumulated because of viscoelastic deformation. Nanoparticles reduced this strain in the initial cyclic straining regime but not in the last regime, probably because such particles cannot inhibit viscoelastic events constrained in a volume larger than their interaction volume within the matrix. Based on the accumulated volume variation measured, the nucleation and growth of microvoids can be expected to occur in the last cyclic straining regime. POLYM. COMPOS., 26:636–646, 2005. © 2005 Society of Plastics Engineers Citing Literature Volume26, Issue5October 2005Pages 636-646 RelatedInformation