查看更多>>摘要：The paper presents the current results of experimental studies of the creep properties of metallic materials and related processes. Uniaxial tension, the effect of aging and temperature on the strength of a welded joint, complex stress, and the effect of factors of chemical interaction of the environment on creep and creep rupture strength are considered. An equivalent stress is given that allows describing the difference in creep lifetimes under uniaxial tension and under equal multiaxial tension for the same value of the principal stress.
查看更多>>摘要：The paper presents the current results of experimental studies of the creep properties of metallic materials and related processes. Uniaxial tension, the effect of aging and temperature on the strength of a welded joint, complex stress, and the effect of factors of chemical interaction of the environment on creep and creep rupture strength are considered. An equivalent stress is given that allows describing the difference in creep lifetimes under uniaxial tension and under equal multiaxial tension for the same value of the principal stress.
查看更多>>摘要：The known physical and phenomenological approaches and failure criteria for structural materials at long-term and variable loading are systematized and their classification are proposed. The modern state of the durability problem is associated with the formulation of multilevel probabilistic models at complex loading, based on the physical laws of processes of brittle and viscous failure.
查看更多>>摘要：The known physical and phenomenological approaches and failure criteria for structural materials at long-term and variable loading are systematized and their classification are proposed. The modern state of the durability problem is associated with the formulation of multilevel probabilistic models at complex loading, based on the physical laws of processes of brittle and viscous failure.
查看更多>>摘要：A review of the works devoted to the theoretical study and experimental verification of one of the fundamental hypotheses of the theory of processes by A.A. Il'yushin, the particular postulate of isotropy, as well as the possibility of its generalization to initially anisotropic materials is fulfilled. A formulation of such a generalization is proposed using the concept of invariant subspaces of the symmetry group of an anisotropic material. As an example, within the framework of the proposed generalization, nonlinear constitutive relations for an elastic orthotropic material are constructed.
查看更多>>摘要：A review of the works devoted to the theoretical study and experimental verification of one of the fundamental hypotheses of the theory of processes by A.A. Il'yushin, the particular postulate of isotropy, as well as the possibility of its generalization to initially anisotropic materials is fulfilled. A formulation of such a generalization is proposed using the concept of invariant subspaces of the symmetry group of an anisotropic material. As an example, within the framework of the proposed generalization, nonlinear constitutive relations for an elastic orthotropic material are constructed.
查看更多>>摘要：Wind power generators of oscillatory type use the energy of flow induced vibrations of bodies to generate electricity. Numerous scientific publications are dedicated to development and analysis of various schemes and designs of such devices. The present paper contains a brief review of the literature on this issue.
查看更多>>摘要：Wind power generators of oscillatory type use the energy of flow induced vibrations of bodies to generate electricity. Numerous scientific publications are dedicated to development and analysis of various schemes and designs of such devices. The present paper contains a brief review of the literature on this issue.
查看更多>>摘要：The article is devoted to the review of scientific achievements of the staff of the Chair of Applied Mechanics and Control, the Laboratories of Control and Navigation and Mathematical Support of Simulation Dynamic Systems in the 21st century.
查看更多>>摘要：The article is devoted to the review of scientific achievements of the staff of the Chair of Applied Mechanics and Control, the Laboratories of Control and Navigation and Mathematical Support of Simulation Dynamic Systems in the 21st century.
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