J. Phys. IV France
Volume 110, September 2003
Page(s) 33 - 38

J. Phys. IV France
110 (2003) 33
DOI: 10.1051/jp4:20020666

A study of the mechanical properties of PMMA and PS at strain rates of 10 -4 to 10 3 over the temperature range 293-363 K

G.M. Swallowe and S.F. Lee

Department of Physics, Loughborough University, Leicestershire LE11 3TU, U.K.

This paper describes work in which stress-strain data is obtained for samples of PMMA and PS during deformation at strain rates in the range 10 -4 to 10 3 s -1 at temperatures in the range 293 K to 363 K. The effect of strain rate on the $\beta$-transition of PMMA and PS is also studied over a range of temperatures but a limited strain rate range. The relationship between strain rate and activation energy and volume is obtained by applying Eyring theory to the PMMA stress-strain curves at their yield point.

© EDP Sciences 2003