About Static Stress Analysis Procedures

Several static stress analysis procedures are available in Abaqus/Standard:

General analysis

• Static Stress Analysis is used for stable problems and can include linear or nonlinear response.

• Quasi-Static Analysis is used to analyze the transient response of structures considering time-dependent material behavior (creep and swelling, viscoelasticity, and viscoplasticity). A quasi-static analysis can be linear or nonlinear.

• Direct Cyclic Analysis is used to calculate the stabilized cyclic response of the structure directly. It uses a combination of Fourier series and time integration of the nonlinear material behavior to obtain the stabilized cyclic solution iteratively.

Buckling analysis

• Eigenvalue Buckling Prediction is used to estimate the critical (bifurcation) load of “stiff” structures. It is a linear perturbation procedure.

• Unstable Collapse and Postbuckling Analysis is used to estimate the unstable, geometrically nonlinear collapse of a structure. The method can also be helpful in obtaining a solution in other types of unstable problems, and it is often suitable for limit load analyses.

Fatigue analysis

• Linear Elastic Fatigue Crack Growth Analysis is used to predict delamination/debonding growth at the brittle material interfaces in laminated composites and to predict crack growth in bulk brittle materials under cyclic loading.

• Low-Cycle Fatigue Analysis Using the Direct Cyclic Approach is used to predict progressive damage and failure for ductile bulk materials and/or to predict delamination/debonding growth at the interfaces in laminated composites based on the direct cyclic approach in conjunction with the damage extrapolation technique.