|This article needs additional citations for verification. (July 2010)|
|Original author(s)||Dassault Systemes|
|Development status||Actively developed|
|Operating system||Microsoft Windows
|Type||Computer-aided engineering, Finite Element Analysis|
|License||Proprietary commercial software|
Abaqus FEA (formerly ABAQUS) is a software suite for finite element analysis and computer-aided engineering, originally released in 1978. The name and logo of this software are based on the abacus calculation tool. The Abaqus product suite consists of five core software products:
- Abaqus/CAE, or "Complete Abaqus Environment" (a backronym with an obvious root in Computer-Aided Engineering). It is a software application used for both the modeling and analysis of mechanical components and assemblies (pre-processing) and visualizing the finite element analysis result. A subset of Abaqus/CAE including only the post-processing module can be launched independently in the Abaqus/Viewer product.
- Abaqus/Standard, a general-purpose Finite-Element analyzer that employs implicit integration scheme (traditional).
- Abaqus/Explicit, a special-purpose Finite-Element analyzer that employs explicit integration scheme to solve highly nonlinear systems with many complex contacts under transient loads.
- Abaqus/CFD, a Computational Fluid Dynamics software application which provides advanced computational fluid dynamics capabilities with extensive support for preprocessing and postprocessing provided in Abaqus/CAE.
- Abaqus/Electromagnetic, a Computational electromagnetics software application which solves advanced computational electromagnetic problems.
Abaqus is used in the automotive, aerospace, and industrial products industries. The product is popular with academic and research institutions due to the wide material modeling capability, and the program's ability to be customized. Abaqus also provides a good collection of multiphysics capabilities, such as coupled acoustic-structural, piezoelectric, and structural-pore capabilities, making it attractive for production-level simulations where multiple fields need to be coupled.
Abaqus was initially designed to address non-linear physical behavior; as a result, the package has an extensive range of material models such as elastomeric (rubberlike) material capabilities.
Here are some animated examples
Every complete finite-element analysis consists of 3 separate stages:
- Pre-processing or modeling: This stage involves creating an input file which contains an engineer's design for a finite-element analyzer (also called "solver").
- Processing or finite element analysis: This stage produces an output visual file.
- Post-processing or generating report, image, animation, etc. from the output file: This stage is a visual rendering stage.
Abaqus/CAE is capable of pre-processing, post-processing, and monitoring the processing stage of the solver; however, the first stage can also be done by other compatible CAD software, or even a text editor. Abaqus/Standard, Abaqus/Explicit or Abaqus/CFD are capable of accomplishing the processing stage. Dassault Systemes also produces Abaqus for CATIA for adding advanced processing and post processing stages to a pre-processor like CATIA.
The following is a comparison between the solver capabilities of Abaqus/Standard and Abaqus/Explicit.
|Feature||Common||ABAQUS/Standard only||ABAQUS/Explicit only|
|Element library||Comprehensive||no limits||only elements appropriate for explicit solutions|
|Material models||Comprehensive||only yield models||yield and fracture models|
|Solution methods||Implicit Integration
needs solve multiple coupled equation
Using the K Matrix (F=Ku)
step by step
using small time steps
sometimes not stable
|Required Disk Space||repetitive calculations likely
takes a lot of space
|no repetitive calculation
|Types of Problems||Linear:
Can solve if simple
Optimal under steady*** loads
Optimal. even if highly non-linear
Optimal. even for complex and varying conditions
Optimal under transient*** loads like Impact, Pulse and Explosion
^* The more complex the contacts become, the more repetitive calculations ABAQUS/Standard has to solve, and the more time and disk space needed; ABAQUS Explicit is the optimal choice in this case
^** Like static elements (see the picture,) dynamic elements, thermal elements and electrical elements
^ ^*** Steady, Static and Constant loads are the same. Transient loads include: quasi-static loads (slowly varying loads in which the effect of inertial is small enough to neglect) and dynamic loads (faster varying loads).
|Wikimedia Commons has media related to Abaqus FEA.|
- "Dassault Systemes to acquire Abaqus Inc for 413 mln usd cash". Forbes.com (Forbes). 17 May 2005. Retrieved 7 July 2010.
- "Product Index". SIMULIA web site. Dassault Systèmes. Archived from the original on 29 May 2010. Retrieved 7 July 2010.
- "Abaqus FEA". SIMULIA web site. Dassault Systèmes. Retrieved 7 July 2010.
- "ABAQUS CEO Interview". Retrieved 4 December 2012.
- "ABAQUS 6.9 User Documentation". Internet Manual. Simulia. Retrieved 10 September 2011.
- ABAQUS/CAE manual