Bolted connection modeling and validation through laser-aided testing

Kaoshan Dai; Changqing Gong; Benjiamin Smith

doi:10.1117/12.2009466

16 April 2013 Bolted connection modeling and validation through laser-aided testing

Kaoshan Dai, Changqing Gong, Benjiamin Smith

Proceedings Volume 8694, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2013; 869424 (2013) https://doi.org/10.1117/12.2009466
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2013, San Diego, California, United States

Abstract

Bolted connections are widely employed in facility structures, such as light masts, transmission poles, and wind turbine towers. The complex connection behavior plays a significant role in the overall dynamic characteristics of a structure. A finite element (FE) modeling study of a bolt-connected square tubular steel beam is presented in this paper. Modal testing was performed in a controlled laboratory condition to validate the FE model, developed for the bolted beam. Two laser Doppler vibrometers were used simultaneously to measure structural vibration. A simplified joint model was proposed to further save computation time for structures with bolted connections. This study is an on-going effort to marshal knowledge associated with detecting damage on facility structures with bolted connections.

Citation Download Citation

Kaoshan Dai, Changqing Gong, and Benjiamin Smith "Bolted connection modeling and validation through laser-aided testing", Proc. SPIE 8694, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2013, 869424 (16 April 2013); https://doi.org/10.1117/12.2009466

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