Twinning, texture and constitutive relations for explosively formed jets

Conference · Sun Jan 01 00:00:00 EST 1989

OSTI ID:5526487

Schiferl, S K

We have used crystallographic-texture calculations to simulate the evolution of preferred grain orientations, and the corresponding changes in anisotropic plasticity, during explosively-driven liner collapse in metallic shaped-charge jets. For hcp metals, twinning tends to be an important deformation mechanism, and twinning is known to be strongly influenced by shocks. We consider cases of enhanced and inhibited twinning for titanium and titanium-alloys; the consequences of these treatments for the evolution of plasticity in early jet formation are discussed. 10 refs., 3 figs., 1 tab.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOD; DOE/DP
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5526487
• Report Number(s): LA-UR-89-3018; CONF-890812-49; ON: DE90000535
• Resource Relation: Conference: American Physical Society topical conference on shock compression of condensed matter, Albuquerque, NM (USA), 14-17 Aug 1989
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
TITANIUM
TWINNING
TITANIUM ALLOYS
DEFORMATION
GRAIN ORIENTATION
JETS
PLASTICITY
SHOCK WAVES
STRAIN RATE
TEXTURE
ALLOYS
CRYSTAL STRUCTURE
ELEMENTS
MECHANICAL PROPERTIES
METALS
MICROSTRUCTURE
ORIENTATION
TRANSITION ELEMENTS
360102* - Metals & Alloys- Structure & Phase Studies