超奇异积分方程的数值处理及其在裂纹力学中的应用
Numerical Treatment of Hypersingular Integral Equations with Application to Crack Mechanics
AI总结:
本文提出超奇异积分与积分方程的处理方法,证明不同定义的等价性,构造特征方程的显式解析解并证明配置法的收敛性,进而推广至完全超奇异核,并应用于多孔弹性材料裂纹问题(Cowin-Nunziato模型)。
摘要:
本文提出了超奇异积分和积分方程的处理方法。证明了超奇异积分不同定义的等价性。然后构造了特征方程的显式解析解,并证明了配置法对该解的收敛性。进一步,我们将这些结果推广到完全超奇异核,并展示了所开发方法在裂纹力学某些问题中的应用,包括基于Cowin-Nunziato模型的多孔弹性材料裂纹问题。
英文摘要:
In this paper we present a treatment of hypersingular integrals and integral equations. It is shown the equivalence of different definitions of hypersingular integrals. Then we construct explicit analytical solution to a characteristic equation and prove convergence of the collocation method to this solution. Further, we expand these results to full hypersingular kernels, and give a demonstration of the developed method to some problems of crack mechanics including crack problem for porous elastic materials, in the framework of Cowin-Nunziato model.
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