TY - JOUR
T1 - Spontaneous growth of interacting cracks in a cruciform pattern
AU - Keer, L. M.
AU - Nemat-Nasser, S.
AU - Oranratnachai, A.
PY - 1980
Y1 - 1980
N2 - The stability of the growth regime of a system of four equal cracks is studied. The cracks are positioned symmetrically in a cruciform pattern, and they grow toward the center of the symmetry because of nonuniform thermal contraction or incremental injection of incompressible fluid. It is shown that, for either loading condition, a critical stage will be reached at which one pair of coplanar cracks runs together to form a single crack, while the other pair remains stationary. In fact, for the hydraulic loading, the effective fluid pressure acting on the cracks decreases as the cracks grow spontaneously.
AB - The stability of the growth regime of a system of four equal cracks is studied. The cracks are positioned symmetrically in a cruciform pattern, and they grow toward the center of the symmetry because of nonuniform thermal contraction or incremental injection of incompressible fluid. It is shown that, for either loading condition, a critical stage will be reached at which one pair of coplanar cracks runs together to form a single crack, while the other pair remains stationary. In fact, for the hydraulic loading, the effective fluid pressure acting on the cracks decreases as the cracks grow spontaneously.
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U2 - 10.1016/0013-7944(80)90037-5
DO - 10.1016/0013-7944(80)90037-5
M3 - Article
AN - SCOPUS:49149145882
VL - 13
SP - 15
EP - 29
JO - Engineering Fracture Mechanics
JF - Engineering Fracture Mechanics
SN - 0013-7944
IS - 1
ER -