Proceedings of the Korean Society For Composite Materials Conference (한국복합재료학회:학술대회논문집)
- 2000.11a
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- Pages.63-66
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- 2000
Analysis of Thermal Residual Stress in Composite Patches
복합재 패춰의 열잔류응력 해석
Abstract
This research addresses study on thermal residual stress of a composite patch repair of the edge cracked aluminium panel of aging aircraft. Composite patch repair is an efficient and economical technique to improve the damage tolerance of cracked metallic structures. These are thermal residual stresses due to the mismatch of coefficient of thermal expansion, and these are affected by the curing cycle of patch specimen. In this study, three curing cycles were selected for F.E. analysis. This study features the effect on composite patch and aluminum by thermal residual stress during crack propagation in aluminum plate.