Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5205889 | Polymer Testing | 2016 | 5 Pages |
Abstract
Rigid polymer foams exhibit excellent mechanical properties for the use in impact and crash components of lightweight structures, such as core layer of sandwich-structures. The design of these lightweight structures strongly depends on secured knowledge of the stress-strain response at various strain rates. For the purpose of predicting the strain rate dependent behaviour under compression loading, an analytical model based on a Burgers model was developed and validated with comprehensive experimental tests of a rigid closed-cell polyurethane foam with different densities (230Â kg/m3, 420Â kg/m3 and 610Â kg/m3) using a servo-hydraulic high speed testing machine at defined strain rates, ranging from 0.0004Â sâ1 to 8Â sâ1.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Oliver WeiÃenborn, Christoph Ebert, Maik Gude,