Six-variable geometrical nonlinear laminated theory for large deformation |
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Authors: | Tan Huifeng Yu Zengxin and Du Xingwen |
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Institution: | (1) Research Laboratory of Composite Materials, Harbin Institute of Technology, 150001 Harbin, China |
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Abstract: | A six-variable geometrical nonlinear shear deformation laminated theory is presented by which normal stress and strain distribution
can be calculated. By considering some affective factors that were neglected under the finite deformation condition, an improved
von Karman geometrical nonlinear deformation-strain relation is used for large deformation analysis. After analyzing the bending
problem of laminated plates, and comparing it with 3-D elasticity solutions and J. N. Reddy five-variable simple higher-order
shear deformation laminated theory, we can conclude that a satisfactory calculation precision has been achieved, which shows
that it is especially suitable for the calculation in the condition of large deformation and the laminated thick plate analysis. |
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Keywords: | geometrical nonlinear laminated theory six-variable large deformation |
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