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Effects of thickness stretching in functionally graded plates and shells

Effects of thickness stretching in functionally graded plates and shells,10.1016/j.compositesb.2010.10.005,Composites Part B-engineering,E. Carrera,S.

Effects of thickness stretching in functionally graded plates and shells   (Citations: 6)
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The present work evaluates the effect of thickness stretching in plate/shell structures made by materials which are functionally graded (FGM) in the thickness directions. That is done by removing or retaining the transverse normal strain in the kinematics assumptions of various refined plate/shell theories. Variable plate/shell models are implemented according to Carrera’s Unified Formulation. Plate/shell theories with constant transverse displacement are compared with the corresponding linear to fourth order of expansion in the thickness direction ones. Single-layered and multilayered FGM structures have been analyzed. A large numerical investigation, encompassing various plate/shell geometries as well as various grading rates for FGMs, has been conducted. It is mainly concluded that a refinements of classical theories that include additional in-plane variables could results meaningless unless transverse normal strain effects are taken into account.
Journal: Composites Part B-engineering - COMPOS PART B-ENG , vol. 42, no. 2, pp. 123-133, 2011
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