KEM 2009 DOI: 10.4028/www.scientific.net/kem.413-414.117 View full text
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Zhi Hua Wang, Lin Jing, Wei Wei Zhang, Hong Wei Ma

Abstract: The local effect of “softening” at the crack location can be simulated by an equivalent spring connecting the two segments of the beam. As modelling the crack, the non-perfectly rigid clamp is also simulated as a torsional spring of unknown stiffness. Combined with the Bernoulli-Euler theories of beam, the present model is applied to derive the characteristic equation of the cantilever beam under uncertain end conditions related to the crack parameters, namely, the location and the depth of the crack. Based on…

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