Elasto-plastic behavior

The competition between the interfacial reactivities, the residual stresses and the elasto-plastic behavior of the components will be strongly dependent on the mechanical stability of the coating-substrate combination. Mechanical stability control has been assessed when making ceramic/metal junctions at high temperature (700°C - 1000°C) during which thick reaction zones tend to form by reactive diffusion in volume intermediate layers. ... 

The elasto plastic behavior of a compositionally graded metal-ceramic structure is investigated. The deformation under uniaxial loading is predicted using both an incremental Mori-Tanaka method and periodic as well as random microstructure extended unit cell approaches. The latter are able to give an accurate description of the local microfields within the phases. Furthermore, the random microstructure unit cell model can represent the interwoven structure at volume fractions close to 50%. Due to the high computational costs, such unit cell analyses are restricted to two-dimensional considerations. 

Supposing that the solid matrix has an elasto-plastic behavior, the theory of plasticity can then be used to describe the matrix deformation in oil reservoir. Equations of the solid deformation include the following three groups equilibrium equations, geometry equations and constitutive equations. 

Bulatov, V. V. and Argon, A. S. (1994) A stochastic model for continuum elasto-plastic behavior III. Plasticity in ordered versus disordered solids, Modell. Simul. Mater. Sci. Eng., 2, 203-222. 

Fig. 8.8 An ensemble-average extensional equivalent stress-strain curve of amorphous polypropylene, derived from axial extension and shear-flow ensembles of separate simulations. The smoothed broken line, average curve, drawn-in by eye, shows clear elasto-plastic behavior and a beginning yield phenomenon (from Mott et al. (1993) courtesy of Taylor and Francis).

STUDY ON ELASTO-PLASTIC BEHAVIOR OF DIFFERENT CARBON TYPES [N CARBON/CARBON COMPOSITES... 

Study on Elasto-Plastic Behavior of Different Carbon Types In Carbon/Carbon Composites... 

In order to conduct the substructure pseudo-dynamic test, the prototype structure is modelled in two parts. One is the actual specimen which is experimentally tested so that the elasto-plastic behavior of the critical part of the structure is realistically represented. The behavior of the other part, which is expected not to critically affect the total response of the structure, is numerically calculated using a conventional nonlinear computational approach. The substracture pseudo-dynamic test is developed on a basis of pseudo-dynamic testing, which is an experimental technique for simulating the seismic response of the tested structure or component. 

In Figure 10.21, the thick lines define six domains of wear (I) mild wear, (II) wear dominated by the elasto-plastic behavior of the metal (delamination, adhesion, abrasion), (III) oxidation wear, (IV) oxidation wear with oxide melting, (V) wear by surface melting of the metal, (VI) seizure. The thin lines crossing the domains represent constant, dimensionless wear rates. The dimensionless wear rate is equal... 

ELASTO-PLASTIC BEHAVIOR OF GLASSY CARBON AND SILICA GLASS BY NANO-INDENTATION WITH SPHERICAL TIPPED INDENTER... 

Elasto-Plastic Behavior of Glassy Carbon and Silica Glass... 

Lhotellier and Brinson [86] developed a mathematical model that includes the mechanical properties of the interphase, the stress concentration near fiber breaks, and the elasto-plastic behavior of both the matrix and the interphase. 

Hysteresis occurs, e.g., in the modeling of elasto-plastic behavior, e.g. in crash-test simulation. 

Fan JP, Tsui CP, Tang CY et ai (2(X)4) Irrlluence of interphase layer on the overall elasto-plastic behaviors of HA/PEEK biocomposite. Biomaterials 25 5363-5373... 

Material nonlinearity may be hyperelastic or elasto-plastic. The difference between the behavior of an elastic and elasto-plastic material is seen on unloading as in the former case the unloading path coincides with the loading path whereas in the latter case a different unloading path results in permanent deformation when the load has been removed. Elasto-plastic behavior is characterized by a linear region up to the yield point, after which soflening behavior is seen. Hyperelastic materials such as elastomers exhibit nonlinear elastic response for even large strains. 

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