Zobrazeno 1 - 10
of 43
pro vyhledávání: '"JOHN W. GILLESPIE, JR."'
Publikováno v:
Defence Technology, Vol 18, Iss 11, Pp 1960-1978 (2022)
Spacesuits and spacecraft must endure high velocity impacts from micrometeoroids. This work considers the impact of 100 μm diameter projectiles into composite targets at velocities from 0.5 km/s to 2 km/s. This work begins by presenting an energy-ba
Externí odkaz:
https://doaj.org/article/004dd1bf6a56470ba240775e9bfbc89f
PUNCH CRUSH OF UNIDIRECTIONAL COMPOSITES AT SUB-MILLIMETER LENGTH SCALE: EXPERIMENTS AND SIMULATIONS
Publikováno v:
American Society for Composites 2022.
An experimental methodology has been developed to fabricate unidirectional (UD) S-2 glass/epoxy composite films at sub-millimeter length scale, and to study the micromechanical punch crush damage mechanisms of UD ribbons of width 1mm (machined from s
Autor:
ELI D. BOGETTI, ANDREW J. STACK, AARON FIEGER, JOSEPH M. DEITZEL, JOHN W. GILLESPIE, JR., MD. Z. HOSSAIN, JEFFERY STANISZEWSKI, MICHAEL YEAGER, BAZLE Z. (GAMA) HAQUE
Publikováno v:
American Society for Composites 2022.
LS-DYNA computational simulations have been carried out to study the effect of sub-laminate stacking sequences on the transverse impact and perforation behavior of multi-layer soft ballistic armor packs (SBAP). A previously validated finite element m
Autor:
ANDREW J. STACK, ELI D. BOGETTI, MOLLA A. ALI, ABIR M. QUABILI, SHRIDHAR YARLAGADDA, JOHN W. GILLESPIE, JR., BAZLE Z. (GAMA) HAQUE
Publikováno v:
American Society for Composites 2022.
An experimental methodology has been developed to investigate the low velocity impact (LVI) damage behavior of plain weave (PW) S-2 Glass/DER353 composite laminate using a hemi-cylinder (HC) and the corner of a cube impactor. Ultrasonic Cscan images
Autor:
SAGAR M. DOSHI, PAUL D. SAMUEL, MOLLA A. ALI, ANDREW J. STACK, BAZLE Z. (GAMA) HAQUE, JOSEPH M. DEITZEL, JOHN W. GILLESPIE, JR.
Publikováno v:
American Society for Composites 2022.
S-2 glass-epoxy composites are used in damage tolerant structural applications such as military ground vehicles due to their high specific strength, stiffness, and energy-absorbing capabilities. Composites can be susceptible to delamination failure c
Publikováno v:
American Society for Composites 2022.
In this paper, the effects of transverse pressure on the structure and axial tensile properties of polyethylene (PE) crystals have been studied using all-atom molecular dynamics (MD) simulations. In the MD simulations, the inter-atomic interaction is
Publikováno v:
Proceedings of the 32nd International Symposium on Ballistics.
The goal of this work is to study energy absorbing mechanisms of plain weave composites. Experiments were conducted of 17-grain fragment simulating projectiles impacting singlelayer plain weave S-2 glass/epoxy composites. The focus of the experiments
Publikováno v:
Proceedings of the 32nd International Symposium on Ballistics.
Spacesuits and spacecraft must endure high velocity impacts from micrometeoroids. This work considers the impact of 100 μm diameter projectiles into composite targets at velocities from 0.5 km/s to 2 km/s. This work begins by presenting an energy-ba
Publikováno v:
Composites Part B: Engineering. 231:109558