Abaqus/Standard: powerful nonlinear implicit solver
Abaqus/Standard is a general-purpose finite element program that employs an implicit integration scheme, this means that it solves a system of equations implicitly at each solution increment. Abaqus/Standard employs a solution technology ideal for static and low-speed dynamic events where highly accurate stress solutions are critically important. Examples include sealing pressure in a gasket joint, steady-state rolling of a tire, or crack propagation in a composite airplane fuselage. Within a single simulation, it is possible to analyze a model both in the time and frequency domain. For example, one may start by performing a nonlinear engine cover mounting analysis including sophisticated gasket mechanics. Following the mounting analysis, the pre-stressed natural frequencies of the cover can be extracted, or the frequency domain mechanical and acoustic response of the pre-stressed cover to engine induced vibrations can be examined.
Abaqus/Standard for static or dynamic simulations
Abaqus/Standard offers complete flexibility in making the distinction between static and dynamic response; the same analysis can contain several static and dynamic phases. In such way, a static preload might be applied, and then the linear or nonlinear dynamic response computed (as in the case of vibrations of a component of a rotating machine or the response of a flexible offshore system that is initially moved to an equilibrium position subject to buoyancy and steady current loads and then is excited by wave loading).
Abaqus/Standard is suitable to analyze static stress/displacement, dynamic stress/displacement, steady-state transport, heat transfer, thermal-stress, electromagnetic, coupled pore fluid flow and stress, mass diffusion, acoustic and shock problems. Abaqus/Standard supports general contact, a contact definition between all or multiple areas of the different bodies of an assembly.
Combination with Abaqus/Explicit
The results at any point within an Abaqus/Standard run can be used as the starting conditions for continuation in Abaqus/Explicit. Similarly, an analysis that starts in Abaqus/Explicit can be continued in Abaqus/Standard. The flexibility provided by this integration allows Abaqus/Standard to be applied to those portions of the analysis that are well-suited to an implicit solution technique; while Abaqus/Explicit may be applied to those portions of the analysis where high-speed, nonlinear, transient response dominates the solution.
Abaqus/Standard is supported within the Abaqus/CAE modeling environment for all common pre- and postprocessing needs.