Dynamic fracture of tantalum under extreme tensile stress

Dynamic fracture of tantalum under extreme tensile stress

The understanding of fracture phenomena of a material at extremely high strain rates is a key issue for a wide variety of scientific research ranging from applied science and technological developments to fundamental science such as laser-matter interaction and geology. Despite its interest, its study relies on a fine multiscale description, in between the atomic scale and macroscopic processes...

Phase Transformation in Tantalum under Extreme Laser Deformation

The structural and mechanical response of metals is intimately connected to phase transformations. For instance, the product of a phase transformation (martensite) is responsible for the extraordinary range of strength and toughness of steel, making it a versatile and important structural material. Although abundant in metals and alloys, the discovery of new phase transformations is not current...

Theory of the physical characteristics of tensile fracture under pressure.

(1) Bridgman's Observational Results.-It was observed by Bridgman' that there is a linear relationship between the hydrostatic pressure p and the natural strain at fracture, i.e., the ductility, in tensile tests on steel cylinders, and that this relationship persists regardless of the type of fracture which occurs. A theoretical explanation of the foregoing result has been given in an earlier p...

Characteristic of dynamic tensile fracture in augite-peridotite

Ocean Pressurization, Stress Evolution, and Tensile Fracture within Icy

Introduction: Liquid water has been inferred to erupt in Europa's geologic past [e.g. 1] and a mixture of water vapor and ice is currently erupting from Enceladus' south polar region [2] whose source may be a liquid water ocean. Water confined to a subsurface ocean faces two impediments in reaching the surface. First, it is negatively buoyant with respect to ice. Second, it requires a pathway t...