Registration Number
0214U003900,
0111U002375
, R & D reports
Title
Development of methods for solving problems of fracture mechanics for bodies with angular notches under complex stress state
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Head
Savruk Mykhaylo, Доктор фізико-математичних наук
Registration Date
14-03-2014
Organization
Karpenko Physico-Mechanical Institute of the National Academy of Science of Ukraine
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A unified approach to solving problems of fracture mechanics for bodies with sharp and rounded corner notches that is proposed by the authors of project is generalized to the case of a complex stress state. The relationship between the stress intensity factors for bodies with sharp angular cuts and maximum stresses and their gradients at the corresponding rounded vertices is obtained for a plane (I, II type strain) and antiplane (type III) problems. On this basis, the proposed method for determination the stress intensity factors at the vertices of sharp angular notches using solutions of the corresponding two-dimensional problems of the theory of elasticity and axisymmetric torsional problems for bodies with rounded V-shaped notches that are obtained by singular integral equations. The test specimens with U and V-shaped notches is developed for experimental studies on the strength of structural elements with stress concentrators, and study patterns of crack nucleation near the vertices of notches cut. A singular integral-differential equations of two-dimensional dynamical problems for elastic domains with curvilinear cracks are constructed and solved. Numerical solutions for dynamic stress intensity factors in two-dimensional solids with curvilinear cracks are obtained. Dynamic stress concentration factors in an elastic plane with a circular hole under non axisymmetric dynamic loading, impact concentrated forces are obtained.
Product Description
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Біда Надія Михайлівна
Васюта Ростислав Володимирович
Заводовський Анатолій Михайлович
Кравець Володимир Степанович
Онишко Любов Йосипівна
Осєчко Анатолій Миколайович
Осів Ярема Петрович
Сенюк Михайло Миколайович
Чорненький Андрій Борисович
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2020-04-02
