1. 接触和约束部分

2. Abaqus/Standard模块中XFEM接触更加成熟。

3. Abaqus/Standard模块中LCP方程求解

4. Abaqus/Explicit模块中CZone

5. 材料和单元，Abaqus/Standard模块中增加了一种brick shell element (CSS8)单元

6. CAE操作环境更加智能、便捷，ANSYS估计得熬夜更新程序了

7. 并行能力发生质变，系统稳定性更强。

 

Abaqus Unified FEA

Complete solutions for realistic simulation.

What's New in Abaqus 2017

Product simulation is often performed today by engineering groups using niche simulation tools from different vendors to simulate various design attributes. The use of multiple vendor software products creates inefficiencies and increases costs. SIMULIA delivers a scalable suite of unified analysis products that allow all users, regardless of their simulation expertise or domain focus, to collaborate and seamlessly share simulation data and approved methods without loss of information fidelity.

The Abaqus Unified FEA product suite offers powerful and complete solutions for both routine and sophisticated engineering problems covering a vast spectrum of industrial applications. For example, in the automotive industry engineering work groups can consider full vehicle loads, dynamic vibration, multibody systems, impact/crash, nonlinear static, thermal coupling, and acoustic-structural coupling using a common model data structure and integrated solver technology. Best-in-class companies are taking advantage of Abaqus Unified FEA to consolidate their processes and tools, reduce costs and inefficiencies, and gain a competitive advantage.

Abaqus 2017 - Unified FEA Products

• Abaqus/CAE

• Abaqus/Standard

•   Abaqus/Explicit
  

• Abaqus/CFD

• ABAQUS/multiphysics

Enhancement Summary

• Enhanced Contact and Constraints
• XFEM Contact Improvements for Abaqus/Standard
• Advances in LCP (Linear Complimentary Problem) Equation Solver for Abaqus/Standard
• CZone Enhancements for Abaqus/Explicit
• Enhanced Materials and Elements
• Development for Welding and Additive Manufacturing (AM)
• Event Series
• Usability
• Other Key Enhancements

Enhanced Contact and Constraints

• Fast linear contact
• Improved convergence behavior
• New edge-to-surface general contact in Abaqus/Standard
• Provides improved robustness/accuracy for assemblies in contact
• New edge-to-surface contact with thick beams as “master”
• Beams and truss edges can act as “master” in the edge-to-surface formulation
• Cohesive behavior can now be used with general contact in Abaqus/Standard
• Full GUI support for Abaqus/CAE
• cohesive behavior was previously supported in context of contact pairs in /Standard and general contact in /Explicit
• Much faster to model cohesive behavior no longer needs to be defined in pairs
• Benefit from general contact robustness with performance and convergence

XFEM Contact Improvements for Abaqus/Standard

• Improved accuracy for XFEM for crack initiation and growth
• XFEM surface can participate in surface-to-surface and edge-to-surface formulations of general contact
• Internal surface energy topology data used in general contact tracking and constraint formulation continuously updates as crack surface evolves
• Improved contour integral for XFEM cracks (Covered above – merge sections)
• Conforming mesh improvements
• Elements surrounding the crack line are cubes instead of long cuboids
• Default enrichment radius can be used

Advances in LCP (Linear Complimentary Problem) Equation Solver for Abaqus/Standard

• Common for surfaces to be in contact – no sliding
• May be the worst case scenario
• Using linear contact and linear geometry, small displacements
• Faster contact, can get order of magnitude improvement
• Other sources of nonlinearity (material and geometric) are “frozen” in the “base state” of the perturbation step

CZone Enhancements for Abaqus/Explicit

• Implemented within general contact algorithm
• Used for modeling brittle failure of shell composites upon impact
• Previously available only through contact pairs
• Increased performance, ease of modeling
• Allows contact front to pass through surface to capture crushing behavior rather than deleting the element
• Avoid multiple impacts to more accurately model continuous crushing
• The general contact CZone capability is documented within Abaqus 2017 documentation

Enhanced Materials and Elements

• New brick shell element (CSS8) for Abaqus/Standard
• Beneficial for thin walled structures modeled in 3D CAD
• Well-suited for composite solids and 3D material models
• Solid element with superior bending behavior about the local 1-2 plane
• Element progressive activation (EPA)
• EPA activates elements in each increment of analysis
• Supported with heat transfer and static properties
• Solid elements in Abaqus/Standard only
• Can activate elements through space and time
• Efficiently simulate manufacturing processes
• Order of magnitude more computationally efficient
• Traditionally the BCs are applied to the model –
• now the BCs are added with the material as part of the solution

Development for Welding and Additive Manufacturing (AM)

• New free surface film (FFS) and radiation (RFS) capabilities
• Automatically applies film and radiation surface loadings to free surfaces
• Nonuniform heat fluxes in 3D heat transfer
• New functionality to easily access model data from user subroutines
• Property tables, parameter tables, table collections, event series
• Free surface film and radiation
• Free surface convection (FFS)
• Automatically applies film loadings to free surfaces
• Free surface radiation (RFS)
• Automatically applies radiation loadings to free surfaces
• Supports both model change and element progressive activation

Event Series

• New interface allows user to define floating point data as a function of position and time
• Rather than amplitude curve (something vs time)… event series uses something vs SPACE AND TIME

Usability

• Independent datum features
• Import parts from input file
• Surface normal query tools
• Show working directory in toolbar
• Expanded object copy between models
• Discrete/analytical fields
• Model instances

Other Key Enhancements

• Improved direct sparse scalability
• Explicit dynamic scalability to 1000 cores
• GPU acceleration of AMS eigensolver
• New material models
• Mean field homogenization
• Abaqus-SIMPACK integration
• Table input for user subroutines
• Progress element activation

更多访问  http://www.3ds.com/products-services/simulia/products/abaqus/latest-release/

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