The study of the strength of structures weakened by a system of cracks
The study of the strength of structures weakened by a system of cracks
- New search for: Shamina, A.A.
- New search for: Zvyaguin, A.V.
- New search for: Akulich, A.V.
- New search for: Tyurenkova, V.V.
- New search for: Smirnov, N.N.
- New search for: Shamina, A.A.
- New search for: Zvyaguin, A.V.
- New search for: Akulich, A.V.
- New search for: Tyurenkova, V.V.
- New search for: Smirnov, N.N.
Abstract Strength of Space vehicles is a crucial issue for Space flight safety. The presence of latent defects in the material has a significant effect on the strength at different loads: the speed and direction of crack growth. In this paper, we study a three-dimensional elastic medium weakened by a system of plane cracks and one crack with a bend. As a numerical method, the method of boundary elements was chosen, namely, the method of discontinuous displacements. The code is implemented in C ++. A comparison was made with known analytical results. Bend crack behavior is studied for various loads.
Highlights Cracks with a bend always begin to grow along the bend line. Numerically developed stress intensity factors are in good agreement with analytical solutions. Two plane fractures interaction in space being located at an angle was investigated. Stress intensity factor depends on the nature of the applied load.
Document information
The study of the strength of structures weakened by a system of cracks
Acta Astronautica ; 176 ; 620-627
2020-02-10
8 pages
Article (Journal)
Electronic Resource
English
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