Continuum Damage Mechanics and Numerical Applications by Wohua Zhang
By Wohua Zhang
Continuum harm Mechanics and Numerical purposes offers a scientific improvement of the speculation of Continuum harm Mechanics and its numerical engineering functions utilizing a unified kind of the mathematical formulations in anisotropic and isotropic harm types. The theoretical framework relies at the thermodynamic concept of power and fabric dissipation and is defined by way of a collection of basic formulations of constitutive equations of broken fabrics, improvement equations of the broken nation, and evolution equations of micro-structures. based on suggestions of damage-dissipation of the cloth kingdom and potent evolution of fabric houses, these kinds of complex equations, which take nonsymmetrized results of wear facets into consideration, are built and transformed from the normal common failure types so that they are extra simply utilized and confirmed in a variety of engineering practices by means of experimental checking out. Dr. Wohua Zhang is a Professor at Engineering Mechanics learn heart in Zhejiang college of China. Dr. Yuanqiang Cai is a Professor at division of Civil Engineering in Zhejiang college of China.
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Additional resources for Continuum Damage Mechanics and Numerical Applications
Analysis of random a nisotropic damage mechanics problems of rock mass: P art I. proba bilistic simulation. Int. J. Rock Mech. , 23(1) , 91-112 (1990) . , Valappan S. , Analysis of random a nisotropic damage mechanics problems of rock mass: Part II. statistical estimation. Int . J. Rock Mech . , 23(1) , 241-259 (1990) . , Probabilistic simulation of fatigue crack growth by damage accumulation. J . Eng. Fract. , 22, 697-712 (1985) . [1-21] Krajcinovic D. , Statistical aspects of the continuous damage theory.
This is in 30 2 Review of Damage Mechanics contrast to the experimental work of Tapponier and Brace [2-231]' which has conclusively shown that dilatancy arises as a consequence of micro-cracking, not plastic flow. To improve on the perceived shortcomings of the bi-surface models, the work of Yazdani and Schreyer [2-232] offers an alternative and realistic description for the damage surface. This is accomplished by means of particular kinetic relations that are postulated. Their damage model allows the prediction of dilatancy as a result of micro-cracking and introduces a distinction between elastic and inelastic damage.
Dhanasekar et al. [2-272] described how the nature of quasi-brittle constituents together with their geometrical arrangement may lead to the appearance of complex macroscopic responses in the averaged behavior. The localization associated with intrinsic softening and interaction between initial orthotropy and damage-induced anisotropy are typical results thereof. Furthermore, Dhanasekar et ai. [2-272] and Massart et ai. [2-175] assumed that if the damaged mat erial remains orthotropic, in reality, however, the response may be highly path-dependent and the initial orthotropy of the initial material is generally lost through the development of asymmetric damage patterns.