We present an experimental study on mixed-mode crack propagation in thin sheet specimens of a soft silicone elastomer. To introduce loading, we adopted the widely applied pure shear fracture testing geometry, but oriented initial at inclined angle relative to direction perpendicular external tensile loading. Because angle, locally tip was subjected both and loading even though global tensile, t...

Prior detailed microscopic observations have revealed the essential mechanisms of damage in through-thickness reinforcing tows when a delamination crack passes. As expected, the damage sequence depends quite strongly on whether the crack is loaded in Mode I or Mode II and, if loading is mixed mode, the order of loading. Here, micromechanical models are presented that show how geometry and const...

The majority of fracture mechanics studies on the toughness of bone have been performed under tensile loading. However, it has recently been shown that the toughness of human cortical bone in the transverse (breaking) orientation is actually much lower in shear (mode II) than in tension (mode I); a fact that is physiologically relevant as in vivo bone is invariably loaded multiaxially. Since bo...

this article aims to review various modes of fracture toughness of resin composites. also, this study intends to review the papers on the fracture mode, namely “fractography”, under scanning electron microscopy finding fracture initiation site, and the effect of filler content on the fracture toughness of resin composites. it will also review the effect of aging on the fracture toughness of res...

This paper describes the development of a dual-actuator loading device that was then used to apply asymmetric, transverse end-displacements laminated beam specimens (silicon/epoxy/silicon) over range separation rates. Measurements reaction forces, as well load-point displacements and rotations, were determine normal tangential components crack tip corresponding J-integral. made possible because...