Browse > Article

Localized Plastic Deformation in Heat-Resistant Alloy and Combined Two-Back Stress Hardening Model  

Yun, Su-Jin (국방과학연구소 1기술연구본부 5부)
Lee, Sang-Yeun (국방과학연구소 1기술연구본부 5부)
Park, Dong-Chang (국방과학연구소 1기술연구본부 5부)
Yoon, Hyun-Gul (국방과학연구소 1기술연구본부 5부)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.15, no.5, 2011 , pp. 82-88 More about this Journal
Abstract
In the present work, FEM analyses are carried out to investigate the fractures occurred within the structural part in the course of combustion experiment. The loss of structural integrity stems from the localized deformation and the damage induced due to a severe change in the thermal load. Moreover, the two-back stress evolution model is proposed using the Armstrong-Frederick and the Phillips' rules to depict the plastic deformation, and the continuum damage mechanics is also incorporated into the present model. It is noted that the present model is able to formulate a wide range of constitutive description with ease. The numerical results depicts that a severe strain localization and damage evolution can be obtained depending on the dominant back stress.
Keywords
Finite Deformation; Damage; Back Stress; Kinematic Hardening; Localization;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Bonora N., "A Nonlinear CDM Model for Ductile Failure, Engng. Fracture Mech.," Vol. 58, No. 1/2, 1997, pp.11-28   DOI   ScienceOn
2 Aifantis E.C., "The Physics of Plastic Deformation," Int. J. Plasticity, Vol. 3 No. 3, 1987, pp.211-247   DOI   ScienceOn
3 Paulun J.E. and Pecherski R.B., "On the application of the plastic spin concept for the description of anisotropic hardening in finite deformation plasticity," Int. J. Plasticity, Vol. 3, No. 4, 1987, pp.303-314   DOI   ScienceOn
4 Kuroda M., "Plastic spin associated with a corner theory of plasticity," Int. J. Plasticity, Vol. 11, No. 5, 1995, pp.547-570   DOI   ScienceOn
5 Lee E.H., "Finite Deformation Effects in Plasticity Analysis, Numerical Analysis of forming Processes, Ed. J. F. Pittman, O. C. Zienkiewicz, R. D. Wood and J. M. Alexander," John Wiley & Sons Ltd., 1984, pp.373-391
6 Dafalias Y.F., "Corotational Rates for Kinematic hardening at Large Plastic Deformation," J. App. Mech., Vol. 50, 1983, pp.561-565   DOI
7 Abu Al-Rub R. K. and Voyiadjis G. Z., "On the coupling of anisotropic damage and plasticity models for ductile materials," Int. J. Solids and Structures, Vol. 40, No. 11, 2003, pp.2611-2643   DOI   ScienceOn
8 Ning J. and Aifantis E. C., "On anisotropic finite deformation plasticity Part II. A two-component model," Acta Mechanica, Vol. 106, 1994, pp.73-85   DOI
9 Voyiadjis G.Z. and Park T., "Kinematics description of damage for finite strain plasticity," International J. Engng Sci., Vol. 56, No. 4, 1999, pp.483-511
10 Mroz Z., "Shrivastava H.P. and Dubey R.N., A Non-Linear Hardening Model and Its Application to Cyclic loading," Acta Mechanica, Vol. 25, 1976, pp.51-61   DOI
11 Phillips A., "Tang J. L., and Ricciuti M., Some New Observation on Yield Surfaces," Acta Mechanica, Vol. 20, 1974, pp.23-39   DOI
12 Shi M.F., Gerdeen J.C., and Aifantis E.C., "On finite deformation plasticity with directional softening Part II. Two-component model, Acta Mechanica," Vol. 101, 1993, pp.69-80   DOI