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Civil-Comp Proceedings
ISSN 1759-3433 CCP: 44
ADVANCES IN BOUNDARY ELEMENT METHODS Edited by: B.H.V. Topping
Paper V.2
Computation of T-Stresses in Elastodynamics by the Boundary Element Method J. Sladek and V. Sladek
Institute of Construction and Architecture, Slovak Academy of Sciences, Bratislava, Slovakia J. Sladek, V. Sladek, "Computation of T-Stresses in Elastodynamics by the Boundary Element Method", in B.H.V. Topping, (Editor), "Advances in Boundary Element Methods", Civil-Comp Press, Edinburgh, UK, pp 105-112, 1996. doi:10.4203/ccp.44.5.2
Abstract
It is presented a path independent integral formulation for
computation of dynamic T-stresses in a two-dimensional body
with a stationary crack. For solution of the crack problem the
boundary element method is used. The uniqueness of the BEM
formulation of a general crack problem is made by the system of
displacement and traction equations on the outer boundary of
body and the crack surface, respectively. The mutual M-integral
expressed through dynamic j- integrals provides sufficient
information for determining T-stresses on the base of found
relation between the M-integral and T-stresses. The integral
representation of the T-stress is presented in the time-domain
and the Laplace transform-domain too. The boundary layer and
displacement field methods are used to test the accuracy of the
suggested integral method. Numerical results are given for the
rectangular plate with a central crack.
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