Results 221 to 230 of about 3,613 (259)
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A transverse crack tip field in bimaterial
Acta Mechanica Sinica, 1994The asymptotic field near an interface crack tip is analyzed with the fully nonlinear theory. By dividing the crack tip field into narrowing sectors and an expanding sector, the asymptotic equations for the crack tip field are derived and solved. The singular characters of stress and strain near the crack tip are revealed.
Du Shanyi, Shi Zhifei, Wu Linzhi
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The elastic crack-tip stress field
1982Consider a coordinate system X, Y, Z in a stressed solid. In each point (x, y, z) one can define the stresses σ x , σ y , σ z , τ xy , τ xz , τ yz . In a condition of plane stress σ z = τ xz = τ yz = 0. In a condition of plane strain e z = 0 from which it follows that σ z = v(σ x + σ y ).
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Crack tip fields in strain gradient plasticity
Journal of the Mechanics and Physics of Solids, 1996Solutions are presented for mode I and mode II crack tip fields for plane strain deformations of an elastic-plastic solid whose constitutive behavior depends on both strains and strain gradients. The constitutive law is the simplest generalization of the J2 deformation theory of plasticity to include strain gradient effects.
Z.Cedric Xia, John W. Hutchinson
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Stress Field Around a Rounded Crack Tip
Journal of Applied Mechanics, 1991A method based on the eigenfunction (Williams stress functions) expansion is developed to examine the stress distribution around the tip region of a macrocrack which has some specific micro configuration. In particular, a macrocrack running into a micro hole under mode I condition is analyzed in detail.
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Viscoplastic field near a propagating crack-tip
Applied Mathematics and Mechanics, 1990An elastic-viscoplastic constitutive model is proposed instead of the usual elastoplastic model. It is assumed that when crack-tip is approached the viscosity coefficient lends to zero (η=η0r). Asymptotic analysis of the dynamic field near a propagating crack-tip is given, and the uniparameter solution is obtained.
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Crack-Tip Singular Fields in Nonhomogeneous Materials
Journal of Applied Mechanics, 1994Jin, Zhi-He, Noda, Naotake
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Molecular imaging in oncology: Current impact and future directions
Ca-A Cancer Journal for Clinicians, 2022Steven P Rowe, Martin G Pomper
exaly
Management of glioblastoma: State of the art and future directions
Ca-A Cancer Journal for Clinicians, 2020Aaron Tan, David M Ashley, Giselle Lopez
exaly

