作者: Theodore H.H. Pian , Pin Tong
DOI: 10.1016/S0065-2156(08)70132-7
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摘要: Publisher Summary The chapter presents a brief introduction to the different finite element formulations for linear elastic solids and discusses similar several other field problems. detailed illustrations typical formulations. In formulation, displacement stress fields are assumed be continuous within each discrete element. This formulation calls modified variational principles which continuity or equilibrium conditions along interelement boundaries introduced as of constraint appropriate boundary variables used corresponding Lagrangian multipliers. models in formulation. large majority existing based on approach. problems solids. There solid mechanics, can formulated by means hence solved methods. methods have also been extended nonlinear resulting from elastic-plastic material properties deflections strains.