Experimental Observations on Dynamic Response of Selected Transparent Armor Materials

Grain size dependence of dynamic mechanical behavior of AZ31B magnesium alloy sheet under compressive shock loading

“…9) showed an upward curving flow, which is related to the strong work hardening due to the occurrence of twinning [8][9][10][43][44][45], which was confirmed by EBSD maps (Figs. 5 and 6).…”

“…However, wrought magnesium alloys normally form a strong basal texture during manufacturing processes such as rolling which results in low room temperature ductility and therefore, their structural applications are limited [7][8][9][10]. In automotive and aerospace applications, magnesium alloys can be exposed to the high local strain-rates, involving high-rate impacts, and they must have enough ductility and strength under such severe loading conditions to increase the lifetime of the components and passenger safety [7][8][9][10]. It is therefore of high importance to evaluate the mechanical behavior and deformation mechanisms under high strain rate conditions.…”

Ballistic Damage of Alumina Ceramics ‐ Learning from Fragments

“…Technically, it is not currently possible to directly image real-time processes of dynamic damage with high enough resolution to resolve most fragments, and post-damage analysis of fragments is therefore of an essential method to establish any damage mechanisms. Recently, visualisation of impact damage has been demonstrated to be possible for transparent ceramics [3][4] , and such experimental observations will undoubtedly shed new light in this area, but a great deal of technical progress is still needed for wider application of such techniques, particularly for studying non-transparent ceramics.…”

Experimental and simulation analysis of texture formation and deformation mechanism of rolled AZ31B magnesium alloy under dynamic loading

“…In some structural applications, components are supposed to work under a wide range of strain rates. For example, the mechanical behavior at high strain rates is of great interest for automotive and aerospace industries because some critical components must be able to show appropriate resistance to failure under severe loading conditions such as car crash or bird-strike on airplane [4][5][6]. Unfortunately, structural applications of wrought magnesium sheets are very limited due to low room temperature elongation and strong plastic anisotropy, resulted from the strong (00.2) basal texture after forming processes such as rolling in which most of the grains are oriented such that their basal planes are parallel to the sheet plane.…”

“…Unfortunately, structural applications of wrought magnesium sheets are very limited due to low room temperature elongation and strong plastic anisotropy, resulted from the strong (00.2) basal texture after forming processes such as rolling in which most of the grains are oriented such that their basal planes are parallel to the sheet plane. This strong basal texture may give rise to plastic anisotropy or low formability at loading directions, which are unfavorable for deformation [4][5][6].…”