What software is abaqus?
ABAQUS is a set of powerful finite element software for engineering simulation. Its problem solving ranges from relatively simple linear analysis to many complex nonlinear problems. It can analyze complex solid mechanics and structural mechanics systems, especially It is capable of handling very large and complex problems and simulating highly nonlinear problems. ABAQUS also provides special modules to solve some special problems.
The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
ABAQUS is a powerful set of finite element software for engineering simulation that can solve problems ranging from relatively simple linear analysis to many complex nonlinear problems. ABAQUS includes a rich library of elements that can simulate arbitrary geometries. It also has various types of material model libraries that can simulate the properties of typical engineering materials, including metals, rubber, polymer materials, composite materials, reinforced concrete, compressible superelastic foam materials, and geological materials such as soil and rock. In addition to solving a large number of structural (stress/displacement) problems, ABAQUS can also simulate many problems in other engineering fields, such as heat conduction, mass diffusion, thermoelectric coupling analysis, acoustic analysis, geomechanical analysis (fluid penetration/stress coupling analysis) and piezoelectric media analysis.
ABAQUS has two main solver modules - ABAQUS/Standard and ABAQUS/Explicit. ABAQUS also includes a graphical user interface that fully supports the solver, the human-computer interaction pre- and post-processing module - ABAQUS/CAE. ABAQUS also provides special modules to solve some special problems.
ABAQUS is widely considered to be the most powerful finite element software that can analyze complex solid mechanics and structural mechanics systems, and is especially capable of handling very large and complex problems and simulating highly nonlinear problems. ABAQUS can not only perform single part mechanics and multi-physics analysis, but can also perform system-level analysis and research. The system-level analysis features of ABAQUS are unique compared to other analysis software. Due to its excellent analytical capabilities and reliability in simulating complex systems, ABAQUS is widely used in industry and research in various countries. ABAQUS products play a huge role in a large number of high-tech product research.
Function
Static stress/displacement analysis: including linear, material and geometric nonlinearity, and structural fracture analysis, etc.
Dynamic analysis Viscoelastic/viscoplastic response analysis: Response analysis of viscoplastic material structures
- ##Thermal conduction analysis: Transient or steady state for conduction, radiation and convection Analysis
- Mass diffusion analysis: mass diffusion and seepage analysis caused by hydrostatic pressure, etc.
- Coupling analysis: thermal/mechanical coupling, thermal/electrical Coupling, pressure/electric coupling, flow/force coupling, acoustic/force coupling, etc.
- Nonlinear dynamic stress/displacement analysis: can simulate various large displacements and contact analysis that change with time etc
- Transient temperature/displacement coupled analysis: solving mechanical and thermal responses and their coupling problems
- Quasi-static analysis: applying explicit integration Methods to solve static and quasi-static problems such as stamping
- Annealing forming process analysis: The material annealing heat treatment process can be simulated
- Ocean engineering structure analysis : Simulate special loads in marine engineering such as flow load, buoyancy, inertial force, etc.Simulate special structures in marine engineering such as anchor chains, pipes, cables, etc.Simulate special connections in marine engineering, such as soil/pipe string connections, anchor chain/seabed friction, pipe/pipeline relative sliding, etc.
- Underwater impact analysis:Analyze the underwater structure under impact load
- Soft body multi-body dynamics analysis: analyze the movement of the mechanism and combine it with the finite element function Perform coupling analysis of structure and machinery, and can consider contact and friction in mechanism movement
- Fatigue analysis: perform survivability analysis and fatigue life prediction based on the statistics of the loading conditions of structures and materials Estimation
- Design sensitivity analysis: perform sensitivity analysis on structural parameters and carry out optimal design of the structure accordinglyIn addition to the above-mentioned conventional and special analysis functions, the software The material model, elements, loads, constraints and connections are also powerful and have their own characteristics:
- Material model: defines a variety of material constitutive relations and failure criterion models, including: Elasticity: Linear elasticity, which can define the elastic properties such as the modulus and Poisson's ratio of the materialOrthotropy, with a variety of typical failure theories, used for composite material structural analysisPorous structure elasticity, used to simulate the elastic behavior of soil and squeezable foams Subelasticity, the effect of strain on modulus can be taken into account Superelasticity, can simulate rubber Large strain influence of similar materialsViscoelasticity, viscoelastic material model in time domain and frequency domain
Extended knowledge: Comparison between ABAQUS software and ANSYS software Analysis
1. Worldwide popularity:Both softwares are internationally renowned finite element analysis software and have their own extensive user groups around the world. ANSYS software has a good reputation among users who are committed to linear analysis. It has also made great contributions in the utilization of computer resources and user interface development. ABAQUS software is dedicated to more complex and in-depth engineering problems, and its powerful nonlinear analysis functions have been widely recognized among high-end user groups in design and research.
Since ANSYS products entered the Chinese market earlier than ABAQUS, and five years ago the ANSYS interface was one of the best interfaces at the time, so in China, ANSYS software has a higher number of users and market promotion than Abaqus. However, with the establishment of ABAQUS Beijing office, the number of users and market share of ABAQUS software are increasing significantly and steadily, and it is expected to catch up with and surpass ANSYS in the next few years.
2. Application fields:
ANSYS software focuses on the expansion of application fields, covering a wide range of research fields such as fluids, electromagnetic fields, and multi-physics coupling. ABAQUS focuses on research in structural mechanics and related fields, and is committed to solving deep-seated practical problems in this field.
3. Cost-effectiveness
ANSYS software has a variety of sales plans due to its flexible pricing policy, and has a good cost-effectiveness when solving conventional linear and coupling problems. However, in actual engineering, nonlinearity is a much more common natural phenomenon than linearity, and linearity is usually just an idealized assumption of nonlinearity. With the improvement of research level and the deepening of research problems, nonlinear problems will inevitably become a topic faced by engineers and researchers, and become a bottleneck restricting in-depth research and accurate design. Purchasing ABAQUS software can solve these problems well, shorten the development cycle, reduce test investment, and avoid redesign. If you want to do your job well, you must first sharpen your tools. The cost of using inappropriate or low-end analytical tools to do the job far exceeds the cost of using the right tools. Therefore, in terms of comprehensive and long-term benefits, the economics of ABAQUS software is also very outstanding.
4. Solver function
For conventional linear problems, both softwares can solve it well, and they are relatively close in terms of model size limit, calculation process, calculation time, etc.
ABAQUS software has very obvious advantages in solving nonlinear problems. Its nonlinearity covers many aspects such as material nonlinearity, geometric nonlinearity and state nonlinearity.
In addition, since ABAQUS/Standard (general program) and ABAQUS/Explicit (explicit integration) are both products of ABAQUS, the data transfer between them is very convenient, and preload force, etc. can be easily considered Calculation of combined static and dynamic forces.
The solver of ABAQUS software is an intelligent solver that can solve nonlinear problems that other software does not converge and nonlinear problems that other software also converges. The calculation of ABAQUS software converges faster and is easier. Operation and use.
5. Human-computer interaction interface
ABAQUS/CAE is a newly developed software operating platform by ABAQUS Company. It draws on the advantages of similar software and CAD software, and is closely integrated with ABAQUS solver software.
Compared with other finite element software interface programs, ABAQUS/CAE has the following characteristics:
l adopts CAD modeling and visualization window system, with good Human-computer interaction characteristics.
l Powerful model management and load management methods provide convenience for modeling and simulation of actual engineering problems with multi-tasks and multi-working conditions.
l In view of the universality of contact problems in actual projects, a separate connection (interaction) module is set up to accurately simulate a variety of contact problems existing in actual projects.
l adopts parametric modeling method, which provides a powerful tool for parameter design and optimization of actual engineering structures, and structural modification.
6. Comprehensive performance comparison
Taken together, ABAQUS software has:
l More unit types, with 433 unit types, providing more room for choice, and It can more deeply reflect subtle structural phenomena and differences between phenomena. In addition to conventional structures, the mechanical behavior of actual structures such as pipes, joints, and fiber-reinforced structures can be easily simulated
l More material models, including constitutive relations and failure criteria of materials etc., there are 16 types of rubber material models alone. In addition to conventional metal materials, special materials such as composite materials, soil, plastic materials, and high-temperature creep materials can also be effectively simulated
l More contact and connection types, which can be Hard contact or soft contact, it can also be Hertz contact (small sliding contact) or limited sliding contact, it can also be double-sided contact or self-contact. The contact surface can also take into account friction and damping. The above options provide a means to conveniently simulate actual engineering structures such as sealing, extrusion, hinged connections, etc.
l The fatigue and fracture analysis function of ABAQUS summarizes a variety of fracture failure criteria and is very effective for analyzing fracture mechanics and crack propagation problems.
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