Accession Number:

AD0893701

Title:

Dynamic Fracture Criteria of Homogeneous Materials

Descriptive Note:

Technical rept. Jun 1970-Oct 1971

Corporate Author:

STANFORD RESEARCH INST MENLO PARK CA

Report Date:

1972-02-01

Pagination or Media Count:

393.0

Abstract:

A successful computational and experimental procedure has been developed for predicting shock-induced damage in brittle and ductile materials. This procedure results in the determination of two material functions namely, the nucleation rate and the growth rate for microscopic voids, which eventually coalesce to form fracture. These nucleation and growth rate material functions are dependent on stress, temperature, and time. During this project the authors measured the stress and time dependence of these functions at room temperature for 1145 Al, OFHC copper, and Armco iron. Additional but less complete data have been obtained for 2024-T81 Al, high purity Al, high purity iron, and Los Alamos Scientific Laboratory LASL graphite.

Subject Categories:

  • Metallurgy and Metallography
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE