Dynamic Problem for an Elastic Space with a Moving Semi-Infinite Crack
A. I. Zhornik, V. A. Kirichek
Chekhov Taganrog Institute, Taganrog, 347926, Russia
Keywords: динамическое разрушение, напряжения, перемещения, смешанные граничные условия, факторизация, коэффициент интенсивности напряжений, dynamic fracture, stress, displacement, mixed boundary conditions, factorization, stress intensity factor stresses
Abstract
This paper considers the dynamic problem of a semi-infinite crack in an elastic space that suddenly begins to grow with a constant speed. At the initial time, the crack faces at some distance from its tip are subjected to normal tensile concentrated forces which then move along the crack faces at a speed different from the speed of the crack tip. The stress intensity factor is calculated. Various special cases are examined.
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