Temperature effects on the dynamic compressive behavior of an epoxy syntactic foam.
- University of Arizona, Tucson, AZ
This research addresses effects of temperature, including adiabatic temperature rise in specimen during dynamic compression and environmental temperature, on the dynamic compressive properties of an epoxy syntactic foam. The adiabatic temperature rise in specimen during dynamic compression is found to be so small that its effects may be neglected. However, environmental temperature has significant effects on dynamic compressive behavior. With decreasing temperature, the foam initially hardens but then softens when below a transitional temperature, which are dominated by mechanisms of thermal-softening and damage-softening, respectively. A phenomenological material model accounting for both temperature and strain-rate effects has been developed, which well describes the compressive and failure behaviors at various strain rates and environmental temperatures.
- Research Organization:
- Sandia National Laboratories
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1004377
- Report Number(s):
- SAND2003-3083J
- Journal Information:
- Proposed for publication in the Journal of Composite Structures., Journal Name: Proposed for publication in the Journal of Composite Structures. Journal Issue: 3 Vol. 67; ISSN 0263-8223; ISSN COMSE2
- Country of Publication:
- United States
- Language:
- English
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