Abaqus Unified FEA

Abaqus provides multiple solver types, including:

• Implicit solver (Abaqus/Standard) – for static, quasi-static, and low-speed dynamic problems

• Explicit solver (Abaqus/Explicit) – for high-speed dynamics, impact, and crash simulations

• Coupled solvers for mixed problems (e.g. thermal-structural, fluid-structure interaction)

Abaqus excels in solving nonlinear problems, which are critical for real-world engineering problems. This includes:

• Material nonlinearity (e.g. plasticity, hyperelasticity, creep, viscoelasticity, damage, fracture)

• Geometric nonlinearity (e.g. large deformations, buckling)

• Contact nonlinearity (e.g. general contact, self-contact, friction, adhesion)

Abaqus provides a wide range of material models suited for various industries, including:

• Metals with plasticity and damage

• Composites and fiber-reinforced materials

• Rubbers and elastomers with hyperelastic models

• Biological tissues (e.g. muscles, bones)

• Concrete with cracking and crushing models

Abaqus has powerful contact algorithms, including:

• General contact algorithms for automatic handling multiple interacting bodies

• Self-contact for applications like metal forming and rubber seals

• Friction for applications like metal forming, sheet rolling, tire traction

• Adhesion for applications like packaging materials

Abaqus can handle high-speed events and transient dynamics, making it useful for:

• Crashworthiness analysis in automotive design

• Projectile and balistics impacts in defense and aerospace industries

• Blast & explosions in defense and aerospace industries

• Earthquake simulation for civil engineering and offshore structures

The explicit solver can be used in combination with the implicit solver in order to handle static events (e.g. prestressing) before the dynamic event.

Abaqus allows users to perform multiphysics simulations, where multiple physical phenomena interact, such as

• Structural-thermal coupling

• Fluid-structure interaction

• Electromagnetic-structural

• Coupling structural-acoustic simulation

• Coupled Eulerian-Lagrangian simulation

• Structural-pore pressure simulation

In addition, Abaqus can be used for co-simulations with other SIMULIA products using the co-simulation engine.

Abaqus provides a Python-based scripting interface, allowing:

• Pre-processing automation (geometric modeling, mesh generation, material assignment, loads, and boundary conditions, etc.)

• Post-processing and data extraction automation (generate custom plots, animations, and reports)

• Integration with external tools and optimization frameworks

Abaqus/Standard and Abaqus/Explicit solvers’ functionality can be extended further with user-defined subroutines written in Fortran or C++. 

Among many subroutines, user can extend and add the following capabilities:

• Custom material models with UMAT/VUMAT

• Custom loading and boundary conditions with DLOAD, UDISP and UTEMP

• Load external data via UEXTERNALDB

Abaqus supports parallel computing via MPI protocol and threads, as well as GPU acceleration. Multiple benchmarks highlight Abaqus’ extraordinary capability to parallelize across multiple HPC nodes and CPUs, working equally well for chipsets from different vendors like Intel or AMD.

Abaqus also supports cloud deployment using Azure and AWS.

We offer an Abaqus online course to help you get familiar with the potential of the tool.

Learn from qualified, certified, and experienced engineers whose in-depth knowledge of Abaqus comes from practical, daily use.