Cyclic tensile tests at constant displacement rate have been performed on a syndiotactic polypropylene to study the effect of the loading history on its mechanical behavior. A test procedure was, at first, properly set up to take into account the inhomogeneous deformation occurring in the adopted dumb-bell specimen. A dependence of the material behavior on the loading history was observed up to yielding, as expected. No effect of the loading history was, instead, observed, neither in the post-yield behavior nor in the strain recovery during and after unloading.

A Study of the Time Dependence of the Post Yield Behavior of a Syndiotactic Polypropilene

MARANO, CLAUDIA;PERILLO, NADIA;RINK SUGAR, MARTA ELISABETH
2012

Abstract

Cyclic tensile tests at constant displacement rate have been performed on a syndiotactic polypropylene to study the effect of the loading history on its mechanical behavior. A test procedure was, at first, properly set up to take into account the inhomogeneous deformation occurring in the adopted dumb-bell specimen. A dependence of the material behavior on the loading history was observed up to yielding, as expected. No effect of the loading history was, instead, observed, neither in the post-yield behavior nor in the strain recovery during and after unloading.
AIP | Conference Proceedings | 1459
9780735410633
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/686841
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