A. V. Zvyagin, D. I. Panfilov, A. A. Luzhin, A. A. Shamina, “A method to find stress intensity coefficients for spatial cracks”, Vestnik Moskov. Univ. Ser. 1. Mat. Mekh., 2021, Number 2,Pages <nobr>16

Mechanics

A method to find stress intensity coefficients for spatial cracks

A. V. Zvyagin^ab, D. I. Panfilov^a, A. A. Luzhin^a, A. A. Shamina^a

^a Lomonosov Moscow State University, Faculty of Mechanics and Mathematics
^b A. A. Blagonravov Mechanical Engineering Institute RAS, Moscow

Abstract: The mutual influence of round and elliptical cracks in three-dimensional space is investigated. The stress intensity factors for various problems are calculated. The dependence of the stress intensity factors on the ratio of the semiaxes of the ellipse is investigated. The computational error does not exceed 1%.

Key words: three-dimensional space, elastic medium, crack, stress intensity factor, boundary element method, discontinuous displacement method.

UDC: 532.591, 531.5.031

Received: 15.05.2020