Fabrication and characterization of high-speed integrated electro-optic lens and scanner devices

Conference · Mon Feb 01 04:00:00 EST 1999

OSTI ID:7830

Gahagan, K T; Gopalan, V; Jia, Q X; Kawas, M J; Mitchell, T E; Robinson, J M; Schlesinger, T E; Stancil, D D

Uniaxial strain impact experiments have been performed to obtain shock compression and release response of a 0.22 g/cm{sup 3} polyurethane foam in a configuration where the foam impacts a thin target witness plate. Wave profiles from a suite of ten experiments have been obtained, where shock amplitudes range from 40 to 500 MPa. A traditional P-{alpha} porous material model generally captures the material response. A fully three-dimensional explicit representation of the heterogeneous foam structure modeled with numerical simulations recovers some of the high frequency aspects of the particle velocity records.

• Research Organization: Los Alamos National Lab., NM (US)
• Sponsoring Organization: USDOE Office of Human Resources and Administration (HR) (US)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 7830
• Report Number(s): LA-UR-99-894
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
AMPLITUDES
COMPRESSION
CONFIGURATION
FABRICATION
POLYURETHANES
POROUS MATERIALS
STRAINS
TARGETS
VELOCITY