About static stress analysis procedures

A static stress procedure is one in which inertia effects are neglected.

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

Static analysis

Static stress analysis is used for stable problems and can include linear or nonlinear response.

Eigenvalue 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

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.

Quasi-static analysis

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

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.

Low-cycle fatigue analysis

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.