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论文类型：会议论文

发表时间：2011-11-18

收录刊物：EI、CPCI-S、Scopus

卷号：117-119

页面范围：438-+

关键字：Cosserat continuum theory; FEM; cantilever beam; size effect

摘要：A basic 3D Cosserat continuum theory and corresponding finite element formulations are deduced. The deflections of a cantilever beam are analyzed by the 20-nodes solid elements based on the classical continuum theory and Cosserat continuum theory respectively. Compared with analytical solution brought forward by Timoshenko and Goodier, it illustrates that the numerical results based on Coseerat FEM are effective and more accurate and closer to the analytical solutions by choosing an appropriate value of the characteristic internal length, which also testifies the capability of reflecting the intrinsic property of the cantilever beam.