A note on incorporation of domain decomposition into the differential quadrature method

作者：Zhong HZ^*; He YH

来源：Communications in Numerical Methods in Engineering, 2003, 19(4): 297-306.

DOI：10.1002/cnm.591

• differential quadrature method
• domain decomposition
• quadrature element method
• weighting coefficients

The incorporation of domain decomposition into the differential quadrature method (DQM) to deal with two-dimensional problems is examined. Several issues involving necessity, implementation procedures and the resultant accuracy of solution are outlined and discussed through a typical plane elasticity example. It is observed that the differential quadrature in conjunction with domain decomposition is able to treat problems with curvilinear boundaries. High-order serendipity elements yield better results in terms of efficiency and accuracy. In addition, it is also found that differential quadrature solution is sensitive to the aspect ratio of domains in the case of stress concentration.

• 出版日期2003-4
• 单位清华大学