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A technique for solving problems of nonlinear continuum mechanics associated with contact interaction, plastic distortion, and continuous and discrete fracture of spatial bodies is developed based on the semianalytic finite-element method generalized to noncanonical bodies. Solutions are obtained to new applied problems in various branches of technology. Compared with the traditional FEM, the technique is highly efficient—the amount of computation needed to solve spatial problems reduces by several orders of magnitude 相似文献
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V. A. Bazhenov A. I. Gulyar S. O. Piskunov A. S. Sakharov A. A. Shkril’ 《International Applied Mechanics》2008,44(12):1378-1388
A new method to evaluate the J-integral in finite-element models is developed and implemented. It is shown that in contrast
to well-known approaches, this method ensures the invariance of the J-integral in finite-element solution of linear and nonlinear
problems
Translated from Prikladnaya Mekhanika, Vol. 44, No. 12, pp. 70–82, December 2008. 相似文献
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V. A. Bazhenov A. I. Gulyar S. O. Piskunov V. P. Andrievskii 《International Applied Mechanics》2009,45(12):1331-1343
A procedure of solving problems of thermoviscoelastoplasticity and continuous fracture of prismatic bodies based on the semianalytic
finite-element method is developed and implemented. 相似文献
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The semianalytic finite-element method is used to develop a method for solving problems of creep and continuous fracture of
complex spatial bodies. The method allows modeling the variation of the stress-strain state during creep, accompanying accumulation
of dispersed microdamages, and development of macroscopic effects—continuous fracture process zones. The growth of a continuous
fracture process zone is modeled. A criterion is formulated for determination of the applicability limits of continuum damage
mechanics. The method is exemplified by the problem of deformation and continuous fracture of a gas turbine blade
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Translated from Prikladnaya Mekhanika, Vol. 41, No. 9, pp. 70–86, September 2005. 相似文献
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