Application of Strain Mode Difference in the Damaged Beam Damage Detection

Abstract:

For the beam with certain degree, it was difficult to reflect by displacement modal and natural frequency. The present paper first derived nodal strain modal through its corresponding displacement modal, and then evaluates the strain modal, both prior and post damage, the difference between the strain mode was used as a criterion to assess the damage experienced, based on a simple beam element damage localization method. The formulated method had been demonstrated through ANSYS numerical modeling to be capable of effectively identifying the damage.

• Periodical: Applied Mechanics and Materials (Volumes 351-352)
• Pages: 1097-1101
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.351-352.1097
• Online since: August 2013
• Authors: Yu Wang, Jia Quan Wu, Fei Ye, Kun Ma*
• Keywords: Damage Identification, Damaged Beam, Displacement Mode, Strain Mode Difference

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