Marc A. Meyers

TL;DR: In this article, the fundamental mechanical aspects of dynamic fracture in metals are presented, with emphasis on spalling produced by the interactions of shock and reflected tensile waves, and the major research efforts conducted in this area are reviewed; the process has been successfully described as a sequence of nucleation, growth, and coalescence of voids or cracks.

TL;DR: It is explained why it is virtually impossible to propagate a tear in rabbit skin, chosen as a model material for the dermis of vertebrates.

TL;DR: In this paper, a criterion for the emission of a dislocation from the surface of a void under remote tension is formulated, analogous to Rice and Thomsons criterion for crack blunting by dislocation emission from the crack tip.

TL;DR: In this article, a phenomenological constitutive equation predicting the effect of grain size on the yield stress of metals is discussed and extended to the nanocrystalline regime, which is shown to predispose the material to shear localization.

TL;DR: This work shows how the Bouligand-type (twisted plywood) arrangement of collagen fibril lamellae has a key role in developing their unique protective properties, by using in situ synchrotron small-angle X-ray scattering during mechanical tensile tests to observe deformation mechanisms in the fibrils.