Analysis of stress and displacement fields in interlaminar-toughened composite laminates with transverse cracks.
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| Title: | Analysis of stress and displacement fields in interlaminar-toughened composite laminates with transverse cracks. |
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| Authors: | Ogihara, Shinji, Takeda, Nobuo, Kobayashi, Akira |
| Source: | Advanced Composite Materials. 1998, Vol. 7 Issue 2, p151. 18p. |
| Subjects: | Laminated materials, Strength of materials, Composite materials, Fatigue (Physiology) |
| Abstract: | In recent years, to enhance the interlaminar fracture roughness of CFRP laminates, interlaminar-toughened laminates have been developed in which resin rich layers are placed in interlaminar regions. In the present study, stress and displacement fields in interlaminar-toughened cross-ply laminates with transverse cracks are analyzed. The analysis is based on a two-dimensional model which assumes that generalized plane strain conditions prevail. Account is taken of thermal residual stresses arising from a mismatch in thermal expansion coefficients of the 0° ply, interlaminar resin and 90° ply. The analytical results are shown for the laminates with interlaminar resin layers of various thicknesses. The analysis will be a basis for the optimal design of laminates with interlaminar resin layers. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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