Behavior Pattern and Parametric Characterization for Low Density Crushable Foams

Document Type

Article

Publication Date

8-1-2007

Publication Title

Journal of Materials Processing Technology

Volume

191

Issue

1-3

First page number:

73

Last page number:

76

Abstract

Crushable foams may be used for shock mitigation and impact absorption applications that take advantage of their complex compression behavior. It is highly desirable that their constitutive behavior be characterized by suitable models with meaningful parameters such as Young's modulus for linear elasticity. This work describes constitutive behavior patterns and parametric characterization for low density crushable foams. Compression tests under large deformation were conducted on polyurethane foams of different densities. Various behavior patterns were observed that differ from the well-known three-stage behavior for porous materials. A set of multi-parameter models was proposed to parametrically characterize the behavior patterns. The constitutive model was intended to serve as a framework for crushability characterization.

Keywords

Behavior pattern; Constitutive model; Crushable foam; Foamed materials; Foamed materials – Compression testing; Foamed materials – Mechanical properties; Parametric characterization; Polyurethanes

Disciplines

Engineering | Materials Science and Engineering | Mechanical Engineering | Mechanics of Materials | Polymer and Organic Materials

Language

English

Permissions

Use Find in Your Library, contact the author, or interlibrary loan to garner a copy of the item. Publisher policy does not allow archiving the final published version. If a post-print (author's peer-reviewed manuscript) is allowed and available, or publisher policy changes, the item will be deposited.

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