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Article
Open AccessDiffusion-controlled crack propagation in alkali feldspar
The chemically driven propagation of interacting parallel cracks in monoclinic alkali feldspar was studied experimentally. Single crystals of potassium-rich gem-quality sanidine were shifted towards more sodiu...
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Article
Open AccessThe second Sandia Fracture Challenge: predictions of ductile failure under quasi-static and moderate-rate dynamic loading
Ductile failure of structural metals is relevant to a wide range of engineering scenarios. Computational methods are employed to anticipate the critical conditions of failure, yet they sometimes provide inaccu...
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Article
On problems with the determination of the fracture resistance for materials with spatial variations of the Young’s modulus
The paper considers the near-tip J-integral \(\text {J}_{\mathrm{tip}}\) ...
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Article
On configurational forces at boundaries in fracture mechanics
Configurational forces invariably appear at the external boundaries of cracked bodies (including the crack faces), but it is unclear whether they influence crack growth. Also, it is unclear how such boundary c...
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Article
Semi-analytical approaches to assess the crack driving force in periodically heterogeneous elastic materials
When a crack propagates in a heterogeneous elastic material, its crack driving force depends strongly on the distribution of the local stiffness near the crack tip. In materials with periodic spatial variation...
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Article
Application of material forces to fracture of inhomogeneous materials: illustrative examples
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Article
Application of material forces to fracture of inhomogeneous materials: illustrative examples
The material forces concept has become an elegant tool in continuum mechanics for the calculation of the thermodynamic driving force of a defect. Based on this concept, we have recently shown that inhomogeneit...
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Article
Crack Tip Shielding or Anti-shielding due to Smooth and Discontinuous Material Inhomogeneities
This paper describes a theoretical model and related computational methods for examining the influence of inhomogeneous material properties on the crack driving force in elastic and elastic-plastic materials. ...
