28 research outputs found
Weakest-link failure prediction for ceramics
Get PDFWeakest-link failure prediction for ceramic components is usually based on strength data obtained from 3- and 4-point bend tests. However, in the route from test specimen to actual component several pitfalls are encountered. Firstly, the bend tests themselves do have their problems. Secondly, there is the problem of the interpretation of the uniaxial strength data in terms of a failure criterium for multiaxial stress states, for which at this juncture no universally applicable model is available. In this contribution the difficulties encountered will be summarized. Besides alternatives will be mentioned which are based on microstructural insight and anisotropic deformation models
Bonded contact and general crack problems in generalized materials and their relationships
No full textFundamental solutions of penny-shaped and half-infinite plane cracks embedded in an infinite space of one-dimensional hexagonal quasi-crystal under thermal loading
No full textCircular crack in a transversely isotropic piezoelectric space under point forces and point charges
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Stress intensity factor for a semi-elliptical crack subjected to an arbitrary mode I loading
No full textA mode I crack with multiple islands of ideal contact between the crack faces: An asymptotic model
No full textStress concentration around a spherical cavity in transversely isotropic materials subjected to pure shear
No full textNanoelectromechanics of piezoelectric indentation and applications to scanning probe microscopies of ferroelectric materials
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