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Numerical computation of dynamic stress intensity factors by a Lagrangian finite-difference method (the HEMP code)

✍ Scribed by Y.M. Chen

Publisher: Elsevier Science
Year: 1975
Tongue: English
Weight: 584 KB
Volume: 7
Category: Article
ISSN: 0013-7944
DOI: 10.1016/0013-7944(75)90021-1

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✦ Synopsis

Ah&r&%-Numerical computation of the dynamic stress intensity factor for a centrally cracked rectangular bar, subjected to uniaxial tensions in plane strain geometry with Heaviside-function time dependence, is carried out using the time-dependent Lagrangian finite-diicrencc code, HEMP. Excellent qraement is found with results obtained from other methods. This demonstrates the capability and the reliability of the HEMP code as an extremely useful numerical method for solving dynamic problems in fracture mechanics. Also discussed is the dynamic behavior of the stress intensity factor and crack opening.

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