In this paper, a methodology for finite-element elastoplastic analyses of structures subjected to cyclic loading, based on a new form of endochronic {internal time) plasticity theory, is presented. In the present version of the endochronic theory, the rate forms of the stress/strain relations (stated here explicitly for plane stress, plane strain, and three-dimensional cases) are entirely analo...

This paper is aimed to examine the dynamics of cracked thin rectangular plates subjected a moving non-stationary random load. A load considered with constant mean value, velocity along plate, and five different covariance patterns,the white noise, constant, exponential, cosine wave, exponential covariance. Accordingly, an intact plate’s orthogonal polynomials in combination well-known corner fu...

As functionally graded material (FGM) plates are widely used in engineering and industrial fields, the fracture strength evaluation of cracked FGM plate becomes increasingly important. However, due to gradation mechanical properties FGM, few analytical methods simple available. In this paper, a convenient method for under different loadings is proposed terms stress intensity factor (SIF) appear...

We find bounds on the effective elastic moduli of cracked materials in terms of the effective conductivity of such media. These represent the first non-trivial bounds on the effective properties of cracked media which are independent of the shapes and spatial distribution of the cracks. Different approximations for the elastic moduli of cracked media are tested against our bounds. The microgeom...

Abstract The phase-field formulation for fracture based on the framework of representative crack elements is extended to transient thermo-mechanics. finite element derived starting from variational principle total virtual power. intention this manuscript demonstrate potential multi-physical models and complex processes inside crack. present model at hand allows predict realistic deformation kin...

This paper presents a discussion on the properties of collocation meshfree method, Updated Lagrangian Taylor-SPH (UL-TSPH), for dynamic problems in solid mechanics. The PDEs are written mixed form terms stress and velocity elastodynamics problems. Two sets particles used to discretize partial differential equations, resulting avoiding tensile instability inherent classical SPH formulations. Num...

In order to solve the many deficiencies in construction method of secondary pouring large-scale floor decoration surface layer, this paper proposes integrated large-area plate structure and decorative clarifies principle, main technological process quality method. Control points, on basis comparison with traditional method, advantages are clarified. The research results show that can save cost ...

This article reviews the diagnosis and treatment of cracked teeth, and explores common clinical examples of cracked teeth, such as cusp fractures, fractures into tooth furcations, and root fractures. This article provides alternative definitions of terms such as cracked teeth, complete and incomplete fractures and crack lines, and explores the scientific rationale for dental terminology commonl...