Abaqus delivers on SIMULIA's strategic commitment to provide scalable, high-quality realistic simulation solutions with new capabilities and more than 100 customer-requested enhancements. SIMULIA customers in a wide range of industries — including aerospace, automotive, consumer packaged goods, energy and life sciences — are using Abaqus to explore the real-world physical behavior of products and materials, in order to improve performance, reliability and safety, while reducing development time and costs.
New Release Available! Abaqus 6.13-AP
Abaqus 6.13-AP Key Features:
Abaqus FEA is the world’s technology-leading suite of Finite Element Analysis (FEA) software for modeling, visualization, and best-in-class implicit and explicit dynamics FEA.
Special note: For those customers licensing Abaqus through Extended Tokens (QXT), Abaqus 6.13-AP now provides access – from the same Extended Token license pool – to Abaqus and Isight, but also now to Tosca Structure 8.0.
Enhanced open access to the latest versions of CAD/PLM geometry authoring products.
Associative interface for PTC Creo updated to support Creo 2.0
Direct import of geometry from CATIA updated to support V5-6R2013 (CATIA V5 R23)
Composites Modeler for Abaqus (CMA)
Updated to provide new functionality for both general usage and for thick composites (with ply drops) applications
Improved composite layup material data I/O
Update the Layup file with Abaqus material data after import of CAE layups.
New customizable default strain limit and warp-weft angle on import from CAE layups.
Improved detection of mismatched layups from CAE to CM in the 'Verify fiber angles' feature.
Improved material positioning and alignment on the geometry
Added a new check for the material orientation on the element and its perpendicularity to the surface.
Allow conversion of C3D6 elements to degenerate C3D8R (needed for some solution methods).
Improved data analysis and transfer from CAE to CM
Added access to draping results (strain) per element.
Add support for transfer of offset data from CAE to CM layups.
New extrusion method capable of following surface contours and improving component stacking
The new solid extrusion method that follows the surface normal as it extrudes, resulting in improved element shape and thickness when many drop-offs are stacked.
Added support for ply drop-offs to be constrained to a gradient - allows resin zones over more than one element.
Added support for DSLS licensing
Licenses are now released when all Layups have been closed.
New Fe-safe modules
SIMULIA fe-safe/safe4fatigue™ 6.4-02 (QF1)
safe4fatigue provides advanced fatigue and durability analysis from measured (or simulated) strain signals, peak/valley files and cycle histograms. Results may be in the form of cycle and damage histograms, cycle and damage density diagrams, stress-strain hysteresis loops or plots of fatigue damage to show the most damaging portions of a signal.
safe4fatigue complements the fatigue analysis capabilities in fe-safe with the ability to compute fatigue life directly from laboratory test measurement.
safe4fatigue incorporates a powerful signal processing package, including modules for amplitude analysis, frequency analysis and digital filtering. The signal processing modules can also be purchased separately, for installations where fatigue analysis is not required.
safe4fatigue interfaces to many common data acquisition systems and data structures. Alternatively, data can be acquired using SAFE data acquisition software, driving Data Translation A/D cards.
safe4fatigue shares the same look and feel as fe-safe.
Fe-safe/Customer Module Framework provides a tool set and interface to allow customers to develop their own fatigue processing tools, workflows, and systems based on the industry leading fatigue analysis technology provided by fe-safe.
The prior limit on the number of eigenmodes due to the 2 GB limit imposed on the size of the subspace has been removed.
Runtime performance has been significantly improved. In the new implementation, the orthogonalization of the dynamic modes, which previously dominated the run times, has been sped up significantly by using efficient computational techniques.
Automatic node selection in the AMS eigensolver
Abaqus/Standard can automatically identify all the nodes that are needed in the selective recovery node set when using the AMS eigensolver.
GPGPU support for unsymmetric solver
Abaqus/Standard analyses that activate the unsymmetric solver can now use GPGPU to accelerate the equation solver phase of the analysis. Previously, only the symmetric equation solver was supported with GPGPU.
Substructure generation using the AMS eigensolver
A new innovative algorithm generating a free-interface or mixed-interface substructure using the AMS eigensolver is available that significantly improves the performance of a substructure generation procedure.
This new algorithm allows for partial recovery of eigenmodes at the user-defined node set, which allows you to avoid computationally expensive full eigenmode recovery and to reduce the overall data storage requirement for substructure generation.
In addition, the performance of conventional substructure generation for free-interface or mixed-interface substructures is improved.
Improved translation of Abaqus substructure data to MSC.ADAMS
The "abaqus adams" translator now offers complete coverage of substructure functionality and improved translation over previous releases.
This execution procedure, which was previously available only with the Abaqus Interface for MSC.ADAMS, is now included as a component of Abaqus/Standard.
A new particle method allows you to perform an analysis using the discrete element method (DEM). This method provides a versatile tool for modeling particulate material behavior in pharmaceutical, chemical, food, ceramic, metallurgical, mining, and other industries and is well-suited for particle mixing applications.
The discrete element method is an intuitive method in which discrete particles collide with each other and with other surfaces during an explicit dynamic simulation. Typically, each DEM particle represents a separate grain, tablet, shot peen, etc. For example, Figure 5–1 shows a sequence of deformed plots that represent the particle response as two augers turn in a particle mixing application. The discrete element method is not applicable to situations in which individual particles undergo complex deformation.
You can display output from a DEM analysis in the Visualization module of Abaqus/CAE by toggling on the Show discrete particle elements entity display option. When display of discrete particle elements is enabled, discrete particle elements are displayed for all output databases in your session.
SPH analysis in parallel
Smoothed particle hydrodynamic (SPH) simulations run more efficiently due to domain decomposition of the SPH computations.
Co-simulation between Electromagnetic and Thermal or Stress Analysis procedures
Direct coupling between an electromagnetic and a thermal or a stress analysis procedure is now supported through the co-simulation capability. This capability allows simulation of problems such as induction heating where the Joule heat output from an electromagnetic analysis drives a thermal analysis, while the temperature output from the thermal analysis affects the electromagnetic fields through temperaturedependent material properties.
Analysis involving coupling between an electromagnetic and a stress analysis procedure is also supported but limited to a one-way transfer of results—magnetic body forces from the electromagnetic to the stress analysis.
Permanent magnetization can be specified for linear isotropic, orthotropic, or anisotropic magnetic behavior or for nonlinear isotropic magnetic behavior. It is specified in terms of the coercivity of the permanent magnet.
EMC3D6 prism element
The electromagnetic prism element can be used to mesh the skin region in a conductor and helps to transition from brick-to-tetrahedral and from tetrahedral-to-tetrahedral elements.
Nonlinear magnetic permeability in Abaqus/CAE
Magnetic permeability properties are required to complete eddy current and magnetostatic analyses. Previously only linear magnetic permeability definitions were supported by Abaqus/CAE. With this enhancement, you can now define nonlinear magnetic permeability material properties.
Steady-state flow problems can now be solved directly, eliminating the need to approximate steadystate conditions using a long-duration transient flow simulation. This enhancement substantially improves overall computational performance in common stead-state CFD simulations.
SST k–ω turbulence model
The popular two-equation SST k–ω turbulence model can now be applied to fluid flow problems.
Hybrid wall functions
Both the Spalart-Allmaras and the new k–ω turbulence models now exhibit reduced sensitivity to the boundary layer mesh size
You can now request thermal conductivity, heat capacity, and heat flux operator output in an Abaqus/Standard uncoupled heat transfer analysis. These operators can be used to construct an abstract representation of a finite element heat transfer model, for use with techniques such as model order reduction.
Uncoupled heat transfer in Abaqus/CFD
Abaqus/CFD’s high capacity, performance, and parallel scalability can now be used to run uncoupled solid heat transfer simulations
Beam-to-surface and beam-to-beam contact can now be modeled with general contact in Abaqus/Standard.
Convergence behavior for Abaqus/Standard
Intra-increment adaptivity of specific contact controls for Abaqus/Standard is provided based on the philosophy that the early iterations for a nonlinear implicit simulation increment should robustly find an approximate solution and subsequent iterations should fine-tune the solution to provide a high degree of accuracy.
The intra-increment adaptive contact controls are intended for advanced users and will likely undergo changes in subsequent releases of Abaqus/Standard.
Contact calculations for thick shells/beams in Abaqus/Explicit
Computation of the effect on contact results due to consideration of incremental rotation of thickness offsets for friction is now more accurate.
Frictional constraints apply a moment to reference nodes offset from the contact interface due to shell or beam thicknesses, to oppose the net moment associated with the frictional force couple.
Friction coefficient dependencies
You can define the friction coefficient as a function of temperature and field variables with the general contact algorithm in Abaqus/Explicit.
User-defined tracking thickness
You can now limit the contact search distance for contact pairs referring to user subroutine VUINTER to improve analysis efficiency in Abaqus/Explicit.
Composite modal damping is available for eigenvalue extraction that uses the SIM-based Lanczos eigensolver.
You specify composite modal damping in the frequency extraction step definition, which is in contrast to analyses using the traditional architecture, where you specify composite modal damping in the material definition.
SIM Architecture support of Coupled Acoustic-Structural Eigenmodes
The coupled structural-acoustic eigenmodes extracted by the Lanczos eigensolver can be stored on the SIM architecture. In addition, subsequent modal methods can utilize these modes for superposition.
Contact pressure-dependent constrain enforcement in Perturbation steps
You can now relax or completely remove contact constraints on all points in contact (i.e., with a “closed” status) depending on the local base state contact pressure during linear perturbation steps in Abaqus/Standard.
Enhanced printed diagnostics for nearly incompressible materials
As an aid to convergence diagnosis, printed diagnostics have been enhanced in models with nearly incompressible materials.
Parallel rheological framework
The parallel rheological framework allows you to model the response of materials subjected to large strains that exhibit nonlinear time-dependent behaviors, such as polymers, accurately. The model consists of multiple viscoelastic networks and, optionally, one elastoplastic network.
You can now use user subroutine VUEOS to define a hydrodynamic material model in which the material’s volumetric response is determined by your own definition of the equation of state.
Tabulated EOS in Abaqus/CAE
You can now create materials with tabulated equations of state linear in energy in Abaqus/CAE, which increases the coverage of Abaqus product functionality.
CATIA V6 Associative Interface: The CATIA V6 AI provides a one-click option to easily transfer part or assembly models to Abaqus/CAE, while retaining the attributes defined in Abaqus/CAE during the re-import of geometry from CATIA V6.
Translator Improvements: The existing fromnastran and fromansys translators were enhanced with new robustness, functionality, and diagnostics to support the growing interest in customers moving from ANSYS and NASTRAN to Abaqus. Also, a new fromdyna translator is available to convert DYNA models into Abaqus. Significant focus was placed on performance and ease-of-use, which will allow users to quickly translate large models with as little manual intervention as possible. In one example, an SUV model with over 6 million nodes was translated in 12 seconds with over 99% of the data translated.