Accession Number:

ADA230383

Title:

Dynamic Fracture Analysis by Moire Interferometry

Descriptive Note:

Technical rept.

Corporate Author:

WASHINGTON UNIV SEATTLE DEPT OF MECHANICAL ENGINEERING

Report Date:

1990-12-01

Pagination or Media Count:

15.0

Abstract:

Dynamic moire interferometry was used to measure separately the u- and v-displacement fields surrounding a rapidly propagating crack tip in Homalite-100 and 7075-T6 aluminum alloy plates. This transient crack tip displacement data was then used to compute the dynamic stress intensity factor and the remote stress component. J-integral values was also estimated using the static approximate procedure. This static analysis provided the correct J when the contour integral was taken within 3 mm of the crack tip. jhd

Subject Categories:

  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE