Abaqus/Explicit

Powerful Nonlinear Explicit Solver for Crash and Manufacturing Validations

Abaqus/Explicit is a Solver Technology for Highly Nonlinear and Highly Speed Time Domain Events

Abaqus/Explicit is an explicit-dynamic finite-element solver most suitable for simulating brief transient and dynamic events such as drop tests of consumer electronics, automotive crashes, and ballistic impacts. The growing popularity of Abaqus/Explicit is due to its unique expertise in handling nonlinear behavior effectively. It makes Abaqus/Explicit ideal for simulating many quasi-static events, such as the rolling of hot metal and the slow crushing of energy-absorbing structures. The key elements of its architecture are ease of use, reliability, and efficiency for production environments. The Abaqus/CAE modeling environment supports Abaqus/Explicit for all common pre- and post-processing.

Unlock the full potential of your simulations with Abaqus/Explicit, the premier solver designed to tackle the most complex and dynamic challenges in engineering. Whether you’re analyzing the explosive forces, a crash test, or the delicate balance of materials in a manufacturing process, Abaqus/Explicit offers unparalleled precision and speed to bring your models to life. Seamlessly integrated into the Abaqus/CAE environment, it empowers engineers to visualize and interpret results with ease, paving the way for innovative designs and robust solutions. Experience the future of simulation technology and elevate your projects to new heights with a tool that thrives on complexity and delivers reliable insights for every application.

Industrial, research, and development, and educational organizations have employed Abaqus/Explicit to solve complex nonlinear engineering problems to make safer products.

Analysis Types

Nonlinear dynamic stress/displacement
Acoustics
Adiabatic stress
Coupled Eulerian-Lagrangian
Coupled field
- Thermo-mechanical
- Shock and acoustic-structural
- Electromagnetic
- Fluid Structure Interaction (FSI)
  - Couple Elerian Lagrangian (CEL)
  - Smooth Particle Hydrodynamics (SPH)
Particles
- Discrete Element Method (DEM)

Analysis and modeling techniques

Import
Restart
Recover
Submodeling
Nonstructural mass
Adaptive Remeshing
Tracer particles
Steady-state detection
Parametrization and parametric studies
Cosimulation
Subcycling
Hydrostatic fluid modeling
Surface-based fluid cavities

Automated mass scaling
Meshed beam cross-sections
Annealing
Automatic perturbation of geometry
Local degrees of freedom
Hydrostatic fluid cavities
Annealing
Reinforcements
Embedded elements
Display bodies
User subroutines
Coupled Eulerian-Lagrangian automated mesh refinement

Parallel Execution

Domain decomposition-based parallel processing
Available on both shared memory and distributed memory parallel (cluster) systems

Material Models

Elastic Mechanical Properties

Inelastic Mechanical Properties

Linear elasticity
Orthotropic and anisotropic linear elasticity
Hyperelasticity (including permanent set)
Anisotropic hyperelasticity
Elastomeric foam
Low-density foam
Frabic
Mullins effect
Time-domain viscoelasticity
Equation of state (EOS)

Metal plasticity
- Isotropic and anisotropic yield criteria
- Isotropic and kinematic hardening
- Rate-dependent yield
- Porous metal plasticity
- Annealing or melting
- Johnson-Cook plasticity
Extended Drucker-Prager plasticity
Modified Drucker-Prager/Cap plasticity
Cam-Clay plasticity
Mohr-Coulomb plasticity
Crushable foam plasticity
Concrete
- Brittle cracking
- Damaged plasticity
Progressive damage and failure
- Ductile
- Shear
- Forming limit diagram (FLD)
- Forming limit stress diagram (FLSD)
- Müschenborn-Sonne forming limit diagram (MSFLD)
- Marciniak-Kuczynski (M-K) criteria
- Hashin unidirectional composite

Additional Material Properties

Density
Material damping
Thermal expansion
Heat transfer properties
- Thermal conductivity
- Specific heat
- Latent heat
Acoustic medium properties
- Bulk modulus
- Volumetric drag
- Cavitation limit
hydrostatic fluid properties
- Hydraulic fluids
- Pneumatic fluids
Viscous shear behavior for fluids
User materials

Element Library

Continuum Elements

Stress analysis
- 2D (plane stress, and plane strain)
- 3D
- Axisymmetric
- Infinite
- Warping
Electromagnetic

Coupled temperature-displacement
- 2D (plane stress and plane strain)
- 3D
- Axisymmetric
Particles
- Smoothed particle hydrodynamics
- Discrete Element Method

Temperature-displacement
- 2D (plane stress, plane strain, and generalized plane strain)
- 3D
- Axisymmetric (with and without twist)
Pore pressure
- 2D (plane strain)
- 3D
- Axisymmetric
- Axisymmetric with nonlinear, asymmetric deformation
Acoustic
- 1D
- 2D
- 3D
- Axisymmetric
- Infinite

Structural Elements

Stress analysis
- Membrane (3D)
- Truss (2D and 3D)
- Beams (2D and 3D)
- Shells (3D, 3D continuum, and axisymmetric)

Inertial Elements

Stress analysis
- Point mass
- Anisotropic Point Mass
- Rotary inertia

Special-Purpose Elements

Surface elements
Hydrostatic fluid elements
Rigid elements
User elements
Capacitance elements
Connector elements
Cohesive elements
Springs and dashpots

Prescribed Conditions

Amplitude curves
Initial conditions
Boundary conditions
Loads
- Distributed
- Surface tractions
- Concentrated forces and moments
- Air blast
- Follower forces
- Thermal
- Acoustic
- Predefined fields
- User-defined
Sensors and actuators

Constraints and Interactions

Kinematic Constraints

Linear constraint equations
General multi-point constraints
Surface-based constraints
- Mesh ties
- Kinematic and distributing couplings
- Shell-to-solid couplings
- Mesh-independent fasteners
Embedded elements

Surface-Based Contact Modeling

General (“automatic”) contact
Surface-based contact pairs
Contact interactions
- 2D, 3D
- Deformable-deformable contact
- Rigid-rigid contact
- Self-contact
- Eroding contact
- Edge-to-edge contact
Mechanical contact properties
- Hard contact
- Soft contact
- Contact damping
- Static and kinetic Coulomb friction
- User-defined friction models
- Anisotropic friction
- User-defined friction models
- Breakable bonds
- Cohesive behavior
Thermal contact properties
User-defined interfacial constitutive behavior
Surface property definitions
- Surface thickness
- Feature edges
- Offsets
Contact formulations
- Penalty and kinematic contact
- Balanced or pure master-slave contact

Input

Keywords
Set concept
Multiple coordinate systems
Parts and assemblies

Output

Interactive graphical postprocessing
Platform-neutral output database
Printed output
External file output
Restart output
Diagnostic messages
Nastran Output2
Scripting interface

Supported Platforms and Hardware

Windows/x86-64
Linux/x86-64

Documentation

Analysis User’s Manual
Keywords Manual
Getting Started Manual
Example Problems Manual
Benchmarks Manual
Verification Manual
Theory Manual
Interfaces User’s Manuals
Release Notes

Product Support

Maintenance and support
Quality Monitoring Service
Installation
Training and users’ meetings