CRACK LOCALIZATION IN TIMOSHENKO BEAM BASED ON THE ANTI-RESONANT FREQUENCY

摘要：

An alternative technique for crack localization in Timoshenko beam based on the first antiresonant frequencies is proposed in this paper. Subsequently, the proposed method is verified by a numerical example of a simply supported beam with a crack. The effect of crack size on the anti-resonant frequencies is also investigated. The position of the crack of the simple supported beam can be determined by the anti-resonance technique. It is found that the proposed technique is effective and an appropriate use of anti-resonant frequencies may avoid non-uniqueness of the damage localization problem, which occurs in symmetrical beams when only natural frequencies are employed.

作者: D S Wang H P Zhu X H Wan

作者单位: School of Civil Engineering & Mechanics, Huazhong University of Science and Technology, Wuhan, 430074 P. R.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）