The yield behaviour of amorphous polyethylene terephthalate: An activated rate theory approach

Autor:	I. M. Ward, R. W. Truss, R. A. Duckett, J. S. Foot
Rok vydání:	1987
Předmět:	Materials science Yield (engineering) Mechanical Engineering Strain rate Amorphous solid chemistry.chemical_compound chemistry Flexural strength Mechanics of Materials Solid mechanics Polyethylene terephthalate General Materials Science Composite material Glass transition Tensile testing
Zdroj:	Journal of Materials Science. 22:1437-1442
ISSN:	1573-4803 0022-2461
Popis:	Yield-stress measurements on amorphous polyethylene terephthalate film are presented covering five decades of strain rate at temperatures from just below the glass transition (≈ 60° C) to −160° C. The data were obtained by combining measurements from a conventional Instron machine with data from a high-speed tensile tester capable of applying strain rates of up to 50 sec−1. Five different failure modes have been identified over this extensive range of test conditions. All data from tests which show a clear yield point can be described accurately by an extension of the Ree Eyring approach to include two processes. The process which is only important at low temperatures correlates well with theβ-process observed in dynamic mechanical experiments.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::be34bcc04d51844ed355d2c427672a83 https://doi.org/10.1007/bf01233145 Zobrazit plný text záznamu Full text from SpringerLink