Transient response of a single-edge crack in an elastic half-plane Page: 1 of 17
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SAND80-1877C
ANSJENT RESPONSE OF A SINGLE-ED-
CRACK IN AN ELASTIC HALF-PLANE
by
E. P. Chen
Systems Safety Technology Division
Sandia National Laboratories
Albuquerque, New Mexico 87185
ABSTRACT
The elasto-dyndlmlic response of a single-edge crack in a
semi-infinite elastic medium is considered in this study. The
crack is assumed to appear suddenly in an elastic half-plane that
is being stretched by a remote stress field. Near the crack, the
interactions between the wave emanating from the tip and those
reflected from the free edge take place. This investigation
focuses its attention on the determination of the effect of this
interaction on the stress intensity factor. Laplace and Fourier
transforms are used to reduce the solution to a pair of dual
integral equations. A numerical Laplace inversion procedure is
used to obtain the time dependence of the solution. Numerical
results on the dynamic sLress intensity factor are obtained and
are presented in a graphical form.
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i..ariy iiri relet those oiti United Sates Govmnien or any anhy hnereo
In the field of fracture mechanics, one of the important
problems concerndwith the determination of the stress distri-
-l-
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Chen, E.P. Transient response of a single-edge crack in an elastic half-plane, article, January 1, 1980; Albuquerque, New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc1053324/m1/1/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.