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On refined theories of composite laminates

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Sommario

Si passano in rassegna varie teorie delle piastre basate sugli spostamenti. Viene mostrato che molte delle teorie del terzo ordine che compaiono nella letteratura sono basate sullo stesso (o un equivalente) campo di spostamenti, e quindi conducono agli stessi risultati. Viene quindi presentata una teoria del terzo ordine coerente nelle deformazioni, che contiene come casi particolari la maggior parte delle esistenti teorie del terzo ordine. Viene anche rivista la teoria delle piastre a strati già proposta dall'autore. L'accuratezza delle teorie è valutata paragonando le soluzioni numeriche con quelle della teoria tri-dimensionale dell'elasticità.

Summary

A review of the developments in the displacement-based theories of plates is presented. It is shown that many of the third-order theories reported in the literature are based on the same or equivalent displacement field, and are thus lead to the same results. A strain-consistent third-order theory is presented, which contains most existing third-order plate theories as special cases. The layer-wise laminate plate theory proposed by the author is also reviewed. The accuracy of the theories is evaluated by comparing the numerical solutions with those of the three-dimensional elasticity theory.

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Reddy, J.N. On refined theories of composite laminates. Meccanica 25, 230–238 (1990). https://doi.org/10.1007/BF01559685

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