Accession Number:

ADA386237

Title:

Analysis of Mixed-Mode Cracks in a Rubbery Particulate Composite

Descriptive Note:

Corporate Author:

AIR FORCE RESEARCH LAB EDWARDS AFB CA

Personal Author(s):

Report Date:

1998-01-01

Pagination or Media Count:

20.0

Abstract:

The mixed-mode loading of a rubbery particulate composite is studied experimentally. Linear fracture mechanics concepts are used to determine the initiation of growth, the initial growth direction, and the subsequent growth rate for a range of mode mixities. The fracture toughness locus is determined to be elliptical, with the mode II toughness being lower than its mode I counterpart. The initial growth directions correlate with maximum strain energy density theories. The crack growth rates can be modeled effectively using an equivalent mode I crack.

Subject Categories:

  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE