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Determination of Damage Severity on Rotor Shaft Due to Crack Using Damage Index Derived from Experimental Modal Data

Experimental Techniques, 2012
After long duration of an operation, a shaft under high spin speeds and heavy loadings may develop fatigue cracks. This could lead to catastrophic failure and could be difficult to detect. An accurate prediction of dynamic characteristics of rotor system is fundamentally important.
Z.C. Ong, A.G.A. Rahman, Z. Ismail
openaire   +1 more source

Dependences of Laser-Induced Bulk Damage Threshold and Crack Patterns in Several Nonlinear Crystals on Irradiation Direction

Japanese Journal of Applied Physics, 2006
The dependence of the bulk damage threshold of nonlinear crystals, such as KDP, KTP, LBO, BBO, CLBO, LiNbO3, and LiTaO3 on laser irradiation direction and their polarization under a single-shot operation have been investigated. We found that the intrinsic bulk-damage threshold for nonlinear crystals was mainly caused by dielectric breakdown from self ...
Hidetsugu Yoshida   +6 more
openaire   +1 more source

Frequency-Based Early Crack Detection and Damage Severity Measure in Structural Glass Members: Application to Beams in Bending

Journal of Architectural Engineering
As is known, the propagation of cracks in a structural member is associated with local modifications of rigidity and thus possible major effects that can strongly affect its load-bearing capacity and dynamic parameters. As such, among others, the natural frequency control represents a consolidated and efficient approach for damage detection, damage ...
openaire   +2 more sources

Machine-learning for damage assessment of rubble stone masonry piers based on crack patterns

Automation in Construction, 2022
Amir Rezaie   +2 more
exaly  

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