Influence of Stress, Strain and Strain Rate on Dynamic Fracture.

reportActive / Technical Report | Accession Number: AD0776400 | Need Help?

Abstract:

The work presented in this report summarizes the results obtained from an examination of dynamic fracture in aluminum alloys under biaxial strain conditions. It is shown that the initiation of dynamic fracture is controlled by the maximum principal stress and the pulse duration. The geometry of the fracture surface is explained in terms of the nucleation of microcracks, and the extent of the fracture is strongly dependent on the aging treatment undergone by the alloy. Author

Author(s):
Fyfe, Ian M. ; Polonis, Douglas H.
Author Organization(s):
WASHINGTON UNIV SEATTLE COLL OF ENGINEERING
Descriptive Note:
Final rept.,
Pagination:
0013

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AROD-9504.5-E
Contract/Grant Number(s):
DA-ARO-D-31-124-70-G91, DA-ARO-D-31-124-72-G126
Project Number(s):
AROD-9504-E
Monitor Series:
9504.5-E
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*Aluminum alloys, *Fracture(Mechanics), Dynamics, Stresses, Tensile properties, Aging(Materials), Crack propagation, Strain(Mechanics), Inclusions
Field(s)/Group(s):
Metallurgy and Metallography
Keyword(s):
Microcracks, Aluminum alloy 2024, Aluminum alloy 6061
Report Date:
1974 Jan 01