Rigid body concept for geometric nonline
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Y.B. Yang; S.P. Lin; C.S. Chen
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Article
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2007
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Elsevier Science
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English
β 547 KB
In the nonlinear analysis of elastic structures, the displacement increments generated at each incremental step can be decomposed into two components as the rigid displacements and natural deformations. Based on the updated Lagrangian (UL) formulation, the geometric stiffness matrix [k g ] is derive