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- Title
Modeling Damage Growth in Oxidized High-Temperature Polymeric Composites.
- Authors
An, Nan; Pochiraju, Kishore
- Abstract
Thermal oxidation is a major degradation mechanism for polymers and composites operating at high temperatures. Controlling the damage progression in oxidative environments is critical for enhancing the long-term durability of these materials. The surface oxidation of the material and the damage evolution in high-temperature polymer matrix composite materials (HTPMCs) are highly coupled mechanisms. In this article, three-dimensional, finite-element methods are used to simulate both oxidation layer and damage growth in polymers subjected to bending loads and laminated composites subjected to uniaxial tension. An oxygen diffusion-reaction model determines the changes in properties due to oxidation and chemical strains induced by oxidation. The damage growth is simulated using mesh-free extended finite-element techniques and suitable damage initiation laws. The damage evolution observed with simulations is seen to be consistent with experimental observations reported in the literature.
- Subjects
OXIDATION; POLYMER research; COMPOSITE materials research; FINITE element method
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2013, Vol 65, Issue 2, p246
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-012-0514-y