DYMAT 2009
Volume 2, 2009
DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
Page(s) 1537 - 1543
Section Numerical Simulations
Published online 15 September 2009
DYMAT 2009 (2009) 1537-1543
DOI: 10.1051/dymat/2009217

Polymer plates subjected to impact: Experimental tests and numerical simulations

A.H. Clausen1, 2, M. Polanco-Loria1, 3, R.T. Moura4, M. Alves4, T. Berstad1, 3, M. Langseth1, 2 and O.S. Hopperstad1, 2

1  Department of Structural Engineering, Norwegian University of Science and Technology, Trondheim, Norway
2  Structural Impact Laboratory (SIMLab), Centre for Research-based Innovation, Norwegian University of Science and Technology, Trondheim, Norway
3  SINTEF Materials & Chemistry, Trondheim, Norway
4  Group of Solid Mechanics and Structural Impact (GMSIE), University of São Paulo, Brazil

Published online: 15 September 2009

This paper presents quasi-static and dynamic tests on circular clamped plates made of a PEHD thermoplastic. A brief review of the main results from a material test programme, involving tension and compression tests at different rates, is also provided. The results from the material tests are used to identify the coefficients of a recently proposed hyperelastic-viscoplastic constitutive model for thermoplastics, also outlined here. Finally, the model is employed in numerical simulations of the impact tests. It is shown that the model represents the force-displacement response of the experimental tests fairly well. Also, considering the quasi-static tests, a localized failure mechanism around the impactor is captured.

© EDP Sciences 2009