積層複合材料の非定常熱応力解析に関する研究 : ガラス転移温度を考慮した熱応力解析モデル

概要

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Transient heat conduction and thermal stress analysis of hybrid laminated composite materials are very important for composite structure design because they are heated during the manufacturing process. Anisotropy of thermal conductivity must be considerd in heat conduction analysis of such composite materials as FRP. Assuming that heat conducts uniformly in the normal direction in thin structures they can be modeled by thin shell elements. In thermal stress analysis of unsymmetrically laminated shells, the coupling effect between plane stress and bending stress must be considered. In this paper, an FEM transient heat conduction and thermal stress analysis system taking glass translation into consideration for hybrid unsymmetrically laminated shell structures are described. As a numerical example, the thermal stress of CFRP laminated plates are investigated. As a result, it is recognized that thermal stress of laminated composite materials is sensitive to glass translation.
社団法人日本機械学会の論文
1995-05-25