Studies of High-accuracy Stress Calculation Method in Isogeometric Structure Analysis
The stress calculated method of isogeometric structure analysis is studied in this paper.Based on the fact that stress calculated values at Guass integral points are more accurate than other locations,the stress field can be rebuilt by fitting the Guass integral points stress value from the displacement field,and two methods including stress interpolation and least square fit are presented to reduce the stress error.The example of infinite plate with circular hole is used to illustrate our methods performance,and the results show that our methods can improve the stress calculate accuracy notable.
isogeometric analysis linear elastic stress error stress interpolation least square method component
He Gang Gu Hao Pan Zhengyu
College of Mechanical & Electrical Engineering Hohai University Changzhou,China
国际会议
杭州
英文
2131-2134
2013-03-22（万方平台首次上网日期，不代表论文的发表时间）