E. S. Sazonov, P. Klinkhachorn, H. V. S. GangaRao, and U. B. Halabe
Proceedings of 28th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE). August 2001, Brunswick, Maine.
This paper presents an overview of an automated damage detection system for the Armored Vehicle Launched Bridge (AVLB). The system utilizes a non-contact laser vibrometer mounted on a computer-controlled robotic gantry as the measurement sensor. Acquired data is automatically processed to obtain strain energy mode shapes, which are used as the damage indicator. The analysis of the strain energy mode shapes is performed by a fuzzy expert system. This system was successfully tested on a full-scale AVLB with different damage scenarios.