Crystal orientation dependence of elastic precursor strength in pentaerythritol tetranitrate

Conference · Sun Aug 01 00:00:00 EDT 1993

OSTI ID:10179416

Dick, J J; Whitehead, M C; Martinez, A R

Elastic precursor shock strengths were measured using VISAR instrumentation on pentaerythritol tetranitrate crystals 2.9 to 6.4 mm thick. Input shock strength was 1.2 GPa. A factor of 3 difference in elastic shock strength and a factor of 2 difference in critical resolved shear stress were observed depending on the crystal orientation. The order of increasing elastic shock strength was [100], [101],[110], and [001]. This is the same order as that obtained in our analysis for increasing steric hindrance to shear, indicating that the relative strength of different orientations of this molecular crystal under shock conditions is governed by steric hindrance to shear.

• Research Organization: Los Alamos National Lab., NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); Department of Defense, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 10179416
• Report Number(s): LA-UR-93-2343; CONF-930676-23; ON: DE93018340
• Resource Relation: Conference: 14. international conference of the International Association for the Advancement of High Pressure Science and Technology,Colorado Springs, CO (United States),27 Jun - 2 Jul 1993; Other Information: PBD: [1993]
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
36 MATERIALS SCIENCE
PETN
CRYSTALS
ELASTICITY
MECHANICAL PROPERTIES
SHEAR
STRESSES
450100
360203
CHEMICAL EXPLOSIONS AND EXPLOSIVES