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Analytical formulae for calculating stresses in unidirectional/cross-ply unbalanced laminates |
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| Authors: | Zhu Caisheng M. Heller Y. C. Lam |
| Affiliation: | a Department of Mechanical Engineering, Monash University, Clayton, Victoria 3168, Australia b Aeronautical Research Laboratories, Department of Defence, Fishermens Bend, Victoria 3207, Australia |
| Abstract: | A multilayer theory has been developed for unidirectional/cross-ply unbalanced laminates subjected to surface shear tractions, using the assumption of plane strain. The analytical solution for the stress field in the laminate is obtained and it is shown that the stresses in each layer are in good agreement with the results of a three-dimensional finite element analysis. Approximate formulae for the analytical stresses are also derived for a laminate subjected to an offset distributed force at one end. The accuracy of this solution is shown by comparison with a three-dimensional finite element analysis. |
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