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Material non-linearity

The stresses near a crack tip in a linear elastic material are related to the applied stress intensity factor K. In some materials, non-linear deformation behavior may occur in the high-stress zone at the crack tip. The effect of this process zone will be to change the stresses at the crack tip. These stresses can often described by a local stress intensity factor K. If the stresses are reduced and the... [Pg.252]

The 2D analysis simulates better the real conditions since it takes into consideration material anisotropy, material non-linearity and a variety of additional restrictions. Unfortunately, the 2D analysis cannot include the non-uniform wheel loading and the multiplicity of the axial loads. [Pg.505]

Because ofthe material non-linearities, the mechanical contacts with friction, the large number of elements, many iteration steps, and the choice of 500 Monte Carlo simulations, four parallel computers (with 26 CPU) were used to handle the large computational requirements for this problem. The FETI Domain Decomposition Method (i.e. apphcation of parallel computers) was used, see Figure 11. [Pg.1378]

Nnmerical methods for stress predictions are classified into FDM and FEM. Flowever, FEM is probably the only method capable of providing accurate predictions of stresses and failure loads in the field of FRP strengthening applications, basically due to its capacity in simulating geometrical and material non-linearities of the model. [Pg.288]

Since the material property is specified at the finite element level, regional variation in the material property can be easily incorporated into the solution procedures. Geometric and material non-linearity can be accounted for by using the appropriate constitutive relationship. Even though the method described above is for a static analysis, dynamic problems can also be solved by including... [Pg.180]

Herein, the material non-linearity of the isolator bearings has been taken into account by assuming that the lead rubber bearings have been used. For simplification, the non-linear hysteretic curve of the bearings, as shown in Figure 1, is divided into two linear parts (bilinear models). [Pg.191]

Thus it is possible, by using closed-form analyses of varying complexity, to predict the stresses in simple lap joints. (This approach is termed continuum mechanics.) In many instances, such solutions may be deemed acceptable. However, two problems still remain to be solved if it is required to predict the strength of real joints. These may be summarized as end effects and material non-linearity (adhesive and adherend plasticity). We will look first at end effects for linear elastic systems. [Pg.34]

When solving boundary valued problems in the field of solid mechanics, non-linearities can arise in two ways, kinematic and material. Material non-linearities mean naturally a non-linear stress-strain constitutive law while kinematic non-linearities have to do with the strain-motion relationship. [Pg.343]


See other pages where Material non-linearity is mentioned: [Pg.466]    [Pg.176]    [Pg.125]    [Pg.640]    [Pg.305]    [Pg.281]    [Pg.401]    [Pg.402]    [Pg.404]    [Pg.407]    [Pg.644]    [Pg.113]    [Pg.2281]    [Pg.2286]    [Pg.2316]    [Pg.289]    [Pg.67]    [Pg.358]   
See also in sourсe #XX -- [ Pg.34 ]




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