Plastic damage model

Plasticity-Damage Multiscale Modeling Example of Automotive Cadillac Control Arm Design... 

Fig. 4.11 Corvette cradle modeling and simulation results from the internal state variable plasticity-damage model coupled with the multistage fatigue model demonstrating the capability to predict the experimental result for redesigning the cradle from aluminum to magnesium...

Assessing Seismic Vulnerability of Unreinforced Masonry Walls Using Elasto-Plastic Damage Model... 

The yield function F represents a surface in effective stress space, which determines the states of failure or damage. For the inviscid plastic-damage model the yield function can be expressed as ... 

In the FEM simulations, pinned support (Ux = 0, Uy = 0, and Uz = 0) was assumed at the base of the walls. The Plastic Damage model available in ABAQUS was also adopted in the simulations. The materials used in the walls were concrete (concrete brick tmits) and mortar (head/bed joints between bricks). Both materials have been considered as a continuum media and simulated using the continuum damage model. The only material properties available in (Li et al. 2005) were the concrete and mortar ultimate compression strengths. Other needed data was extracted using ACI formulas. Some of the parameters needed in the Plastic... 

Table 7.4 Parameters used in plastic damage model...

Kachanov LM (1986) Introduction to continuum damage mechanics. Springer, New York Lee J, Fenves GL (1998) Plastic-damage model for cyclic loading of concrete structures. J Eng Mech ASCE 124(8) 892-900... 

Li T, Galati N, Tumialan G, Nanni A (2005) Analysis of unrernforced masonry concrete walls strengthened with glass fiber-reinforced polymer bars. Struct J 102(4) 569-577 Lubliner J, Oliver J, Oiler S, Onate E (1989) A plastic-damage model for concrete. Int J Solids Struct 25(3) 299-326... 

Oiler, S., Onate, E., Miquel, J. Botello, S. 1996b. A plastic damage constitutive model for composites materials. International Journal of Solids and Structures 33(17) 2501-2518. 

Lubliner, J., J. Oliver, S. Oiler, and E. Onate. (1989) A Plastic-Damage Model for Concrete, International Journal of Solids and Structures, vol. 25, pp. 299-329. 

A void nucleation and growth fracture model embedded in a general viscoelastic-plastic material model is representative of approaches to ductile dynamic fracture (Davison et al., 1977 Kipp and Stevens, 1976). Other approaches include employing the plastic strain as a damage variable (Johnson and Cook, 1985) so that both spall and large strain-to-failure can be treated. 

The degradation of composites has been reviewed by Bank and co-workers [1] and in the work at the National Physical Laboratory (see Section 12.11). Apart from the special circumstances of damage accumulation in fatigue, the models are the same as those applying to plastics in general. 

Craddock, J.N. and Savides. I.S. (1994). Modeling elastic-plastic behavior of metal matrix composites with reaction zones under longitudinal tension. Ini. J. Damage Mech. 3, 308-311. 

---