FINITE-PART INTEGRAL METHOD TO SOLVE THREE-DIMENSIONAL CRACK PROBLEMS IN ELECTROMAGNETOTHERMOELASTIC MULTIPHASE COMPOSITES
This work presents a time-domain hypersingular integral equation(TD-HIE) method for modeling planar crack growth in electro-magneto-thermo-elastic coupled viscoplastic multiphase composites (EMTE-CVP-MCs) under extended incremental loads rate through intricate theoretical analysis and numerical simulations.Using Greens functions,the general solutions are obtained by time-domain boundary integral equation method.The crack growth problem is reduced to solving a set of TD-HIEs,in which the unknown functions are the extended incremental displacement discontinuities gradient.Then,the behavior of the extended incremental displacement discontinuities gradient around the crack front terminating at the interface is analyzed by the main-part analysis method,and the analytical solutions of the extended singular incremental stresses gradient near the crack fronts are provided.Finally,a numerical method of the TD-HIEs is put forward,and some examples are presented to demonstrate the application of the proposed method.
electro-magneto-thermo-elastic coupled viscoplastic multiphase composites crack hypersingular integral equation boundary element method
T.Y.Qin B.J.Zhu
College of Science,China Agricultural University,Beijing 100083,China
国际会议
第二届国际非均质材料力学会议(The Second International Conference on Heterogeneous Material Mechanics)
安徽黄山
英文
1550-1554
2008-06-03（万方平台首次上网日期，不代表论文的发表时间）