Damage Identification Research of Cantilever Truss Based on the Principle of Strain Mode

Abstract:

Article Preview

This paper presents a method converting the modal distance of the node into elemental strain based on the special characteristic of two-force element .The strain change before and after damage is applied to the damage identification. The change rule of the relative strain for the same location of the truss occur the various damage extent and the various location of the truss occur the same damage extent, respectively, is obtained according to the strain modal simulation using APDL language. The simulation results show that the strain modal change ratio is sensitive to the cantilever truss damage detection. The damage location and damage extent will be identified. It is an effective nodestructive test way to identify the cantilever truss structural damage.

Info:

Periodical:

Edited by:

Chunliang Zhang and Paul P. Lin

Pages:

1432-1435

Citation:

J. H. Zhang et al., "Damage Identification Research of Cantilever Truss Based on the Principle of Strain Mode", Applied Mechanics and Materials, Vols. 226-228, pp. 1432-1435, 2012

Online since:

November 2012

Export:

Price:

$38.00

[1] YANG Zhi-hun, YU Zhe-feng: Research Progress of Damage Detection Technology in Structural Health Monitoring. Mechanical Progress, 2004 (2): 215-223.

[2] WANG Li-heng, ZHOU Xi-yuan, YAN Wei-ming: Some New Structural Damage Detection Methods. Sichuan Building Scientific Research, 2005, 31 (6): 59-64.

[3] Dong Guang, XU Yu-Xiu, WANG Bing-cheng: Research Progress of Structural Damage Detection and Diagnosis Method. Shenyang Industrial University Press, 2004, (4): 457-460.

[4] GU Pei-ying, CHEN Hou-qun, LI Tong-chun, DENG Chang: Direct- Position Damage Index Method Based on the Principle of Strain Mode Difference. Vibration and Impact, 2006, 25 (4): 13 to 17.

[5] SU Ying-zhi, YUAN Min, FAN Jing-sheng: Numerical Simulation Analysis of Tower Structure Damage Based on Vibration Mode data. Xingtai Professional Technology Institute, 2006, 23(3).