SPHERICAL ELASTIC-PLASTIC WAVES IN SOLID MEDIA,

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Abstract:

The propagation of loading and unloading elastic-plastic waves in an ideally elastic-plastic infinite medium, containing a spherical cavity, and obeying the Tresca yield condition is considered when a time dependent pressure pulse is applied on the cavity surface. The numerical method, based upon finite differences, treats the various wave fronts exactly. It is shown that the speeds of the unloading wave fronts are dependent upon the decay rate of the applied pressure. The results for cavity displacement are compared with those obtained from an existing method. Author

Author(s):
Garg, Sabodh K.
Author Organization(s):
TORONTO UNIV (ONTARIO) INST FOR AEROSPACE STUDIES
Pagination:
0047

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
ARL-70-0072
Contract/Grant Number(s):
AF 33(615)-5313
Project Number(s):
AF-7065
Monitor Series:
70-0072
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*MECHANICAL WAVES, PROPAGATION), COMPRESSIVE PROPERTIES, PLASTIC PROPERTIES, ELASTIC PROPERTIES, STRESSES, STRAIN(MECHANICS), NUMERICAL ANALYSIS, CANADA
Field(s)/Group(s):
Mechanics
Keyword(s):
PRECURSORS, FINITE DIFFERENCE ANALYSIS, SPHERICAL CAVITIES, *STRESS WAVES
Report Date:
1970 Apr 01