26 Result(s)
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Engineering
Automotive Engineering
Civil Engineering
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Jia **g
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Article
Stress, intensity factors for corner cracks in rotating discs
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Article
Determination of the full elastic-plastic stress field of a tensile crack by minimization of the complementary energy
In this paper, an energy method is proposed to study the full elastic-plastic field of a tensile crack. A statically admissible stress field is established by develo** an expansion of the stress function in ...
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A Dugdale–Barenblatt Model for a Plane Stress Semi-Infinite Crack under Mixed Mode Concentrated Forces
In this paper, a mixed mode Dugdale–Barenblatt model has been established for a semi-infinite crack in an ideally elastic-plastic thin plate loaded by a pair of self-equilibrating concentrated forces at the cr...
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Article
Debonding of the interface as 'crack arrestor'
In this paper, we studied the interface debonding when a crack perpendicularly approaches an interface between two dissimilar elastic materials. An interface toughness law was first defined according to an adh...
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Article
Stress singularities near the tip of a two-dimensional notch formed from several elastic anisotropic materials
In this paper, we studied the stress singularities near the tip of a two-dimension notch, which could be a crack tip, formed from several elastic materials, each of them may be generally anisotropic. By introd...
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Finite element implementation of thermal weight function method for calculating transient SIFs of a body subjected to thermal shock
The thermal weight function (TWF) is a universal function, which is dependent only on the crack configuration and body geometry, and is independent of temperature fields. The TWF method is especially suitable ...
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Article
Analysis of in-plane transonically propagating interface crack with a finite contact zone
The report of Lambros and Rosakis [(1995) J Mech Phys Solids 43(2): 169–188] has focused attention on steady-state transonic interfacial crack growth accounting for the phenomenon of crack face contact in elas...
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Statistics of strength of ceramics: finite weakest-link model and necessity of zero threshold
It is argued that, in probabilistic estimates of quasibrittle structure strength, the strength threshold should be considered to be zero and the distribution to be transitional between Gaussian and Weibullian....
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Article
Stress field of a coated arbitrary shape inclusion
This paper presents an effective method for the plane problem of a coated inclusion of arbitrary shape embedded in an isotropic matrix subjected to uniform stresses at infinity. Based on the complex variable m...
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Article
General size effect on strength of bimaterial quasibrittle structures
This paper presents a general size effect equation for the strength of hybrid structures, which are made of two dissimilar quasibrittle materials with a thin and weak bimaterial interface. Depending on the mat...
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Article
Basic solutions of a 3-D rectangular limited-permeable crack or two 3-D rectangular limited-permeable cracks in piezoelectric materials
The solutions of a 3-D rectangular limited-permeable crack or two 3-D rectangular limited-permeable cracks in piezoelectric materials were given by using the generalized Almansi’s theorem and the Schmidt metho...
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Article
A damage model for crack prediction in brittle and quasi-brittle materials solved by the FFT method
In this paper, we present a damage model and its numerical solution by means of Fast Fourier Transforms (FFT). The FFT-based formulation initially proposed for linear and non-linear composite homogenization (M...
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Article
Analytical and numerical investigation for true and spurious eigensolutions of an elliptical membrane using the real-part dual BIEM/BEM
The paper performs analytical and numerical investigation of the true and spurious eigensolutions of an elliptical membrane using the real-part boundary integral equation method (BIEM) following the successful...
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Article
Elastic interaction between edge dislocation, concentrated force, point heat source and edge crack in a semi-infinite plane
We investigate the interaction between edge crack and edge dislocation as well as concentrated force and point heat source. The stress intensity factors at the edge crack tip and the image forces acting on the...
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Article
Experimental study of the fragmentation characteristics of brittle rocks by the effect of a freefall round hammer
The dynamic fragmentation of brittle rocks (slate, granite, marble and limestone) under low-velocity impact was investigated using freefall round hammer experiments. A three-parameter generalized extreme value...
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Article
Size-dependent elastic interaction of screw dislocations with semi-infinite coating materials revealed by atomistic simulation and two dimensional analysis
The aim of this work is to study the size-dependent elastic interaction of a screw dislocation with an elastic isotropic layered semi-infinite matrix using molecular dynamics analysis. The analytic solutions o...
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Article
Experimental study on the mechanical properties of AZ31B-H24 magnesium alloy sheets under various loading conditions
In order to fully characterize the plasticity and fracture of magnesium AZ31B-H24 sheets, a set of mechanical experiments (105 in total) were performed under different loading conditions, including monotonic u...
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Article
Study on coexistence of brittle and ductile fractures in nano reinforcement composites under different loading conditions
Experimental study on high volume fraction of metallic matrix nano composites (MMNCs) was conducted, including uniaxial tension, uniaxial compression, and three-point bending. The example materials were two ma...
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Plastic behavior of steel and iron in high strain rate regime
The shock response of anti-hydrogen steel (HR-2) and iron was studied in a series of laser-driven shock wave experiments. A line-imaging optical recording velocity interferometer system for any reflector was u...
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Quasi-static fracturing in double-flawed specimens under uniaxial loading: the role of strain rate
Mechanical properties and cracking behaviors of flaw-weakened rock mass are distinguishably influenced by the quasi-static strain rate. Such advanced knowledge is mainly obtained through the numerical simulati...
