CRACK IDENTIFICATION IN BEAM STRUCTURES BASED ON FINITE ELEMENT METHOD AND GENETIC ALGORITHMS

摘要：

In this paper, a genetic algorithm based method for crack identification is proposed and described, which formulates the crack detection in beam structures as an optimization problem by means of finite element method and utilizes genetic algorithms to effectively search the crack parameters. Due to the nonlinear essence, time response of structural vibration is employed. Numerical simulations have been carried out and the results demonstrate that good predictions of the crack location and magnitude are possible and the proposed method is feasible. The study also indicates that the proposed method has the potential to solve a wide range of inverse identification problems in a systematic and robust way.

作者: Yu Zhigang Xu Xin Xiao Kaiqing Chu Fulei

作者单位: Department of precision instruments, Tsinghua University,Beijing, 100084, China;The third institute The third institute of Qinghe Dalou Zi, Beijing,100085, China Department of precision instruments, Tsinghua University,Beijing, 100084, China

会议类型: 国际会议

会议名称: 第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-10-15（万方平台首次上网日期，不代表论文的发表时间）