Finite element analysis software

Finite element analysis is a modern calculation method developed rapidly for structural mechanics analysis. It is an effective numerical analysis method that was first applied to the field of continuum mechanics-static and dynamic characteristics analysis of aircraft structures in 1950s, and then it was widely used to solve continuity problems such as heat conduction, electromagnetic field and fluid mechanics.

At present, the most popular finite element analysis softwares are ANSYS, ADINA, ABAQUS and MSC, among which ADINA and ABAQUS are the two most recognized finite element analysis softwares in the industry. ANSYS and MSC entered China earlier, so they are well-known and widely used in China. At present, several major companies can realize the coupling analysis of structure, fluid and heat in the coupling of multiple physical fields, but the other three must cooperate with other software for iterative analysis. The only software that can realize the real fluid-solid coupling is ADINA.

ANSYS is an early commercial software. At present, the company has acquired many other software. ABAQUS focuses on structural analysis. At present, there is no fluid module. MSC is an old software, and the update speed is relatively slow at present. ADINA is a structural, fluid and thermal analysis software developed under the same system. It is powerful, but it entered China late and the market has not been fully spread.

Rank of structural analysis ability: 1, ABAQUS, ADINA, MSC, ANSYS.

Rank of fluid analysis ability: 1, ANSYS, ADINA, MSC, ABAQUS.

Rank of coupling analysis ability: 1, ADINA, ANSYS, MSC, ABAQUS.

Cost performance ranking: ADINA is the best, followed by ABAQUS, ANSYS and MSC.

Comparative analysis of ABAQUS software and ANSYS software

1. Global popularity:

Both softwares are internationally renowned finite element analysis softwares, and they have their own extensive user groups all over the world. ANSYS software has a good reputation among users who are committed to linear analysis, and has also made great contributions to the utilization of computer resources and the development of user interface. ABAQUS software is dedicated to more complex and in-depth engineering problems, and its powerful nonlinear analysis function has been widely recognized by high-end users in design and research.

Because the products of ANSYS entered the China market earlier than ABAQUS, and the interface of ANSYS was one of the best at that time five years ago, in China, ANSYS software was higher than ABAQUS in terms of the number of users and marketing. However, with the establishment of ABAQUS Beijing office, the number of users and market share of ABAQUS software are increasing substantially and steadily, and it is expected to catch up with and surpass ANSYS in the next few years.

2. Application areas:

ANSYS software pays attention to the expansion of application fields, and has covered a wide range of research fields such as fluid, electromagnetic field and multi-physical field coupling. ABAQUS focuses on structural mechanics and related fields and is committed to solving deep-seated practical problems in this field.

3. Performance-price ratio

Because of the flexible price policy, ANSYS software has a variety of sales schemes, and it has a good cost performance when solving the conventional linear and coupling problems. But in practical engineering, nonlinearity is a natural phenomenon far more common 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. Buying ABAQUS software can solve these problems well, shorten the development cycle, reduce the test investment and avoid redesign. Sharp tools make good work. The cost of using unsuitable or low-level analysis tools far exceeds the cost of using suitable tools. Therefore, from the perspective of comprehensive benefits and long-term benefits, the economy of ABAQUS software is also very prominent.

4. Solve the function

For the conventional linear problem, both software can solve it well, and they are similar in model size limitation, calculation flow and calculation time.

ABAQUS software has obvious advantages in solving nonlinear problems. Its nonlinearity covers many aspects such as material nonlinearity, geometric nonlinearity and state nonlinearity.

In addition, because ABAQUS/Standard (general program) and ABAQUS/Explicit (explicit integral) are products of ABAQUS company, the data transmission between them is very convenient, and it is convenient to consider the calculation of static and dynamic combinations such as preload.

The solver of ABAQUS software is an intelligent solver, which can solve the nonlinear problem that other software does not converge and other software also converges. ABAQUS software has faster calculation convergence speed and is easier to operate and use.

5. Man-machine interface

ABAQUS/CAE is a newly developed software running platform of ABAQUS Company. It absorbs the advantages of similar software and CAD software and is closely combined with ABAQUS solution software.

Compared with other interface programs of finite element software, ABAQUS/CAE has the following characteristics:

Using L CAD to model and visualize the window system has good human-computer interaction characteristics.

Powerful model management and load management methods provide convenience for the modeling and simulation of practical engineering problems with multi-task and multi-working conditions.

In view of the universality of contact problems in practical engineering, an interactive module is set up separately, which can accurately simulate various contact problems in practical engineering.

L parametric modeling method provides a powerful tool for parameter design and optimization of actual engineering structures and structural modification.

6. Comparison of comprehensive performance

In a word, ABAQUS software has:

There are more unit types, including 433 unit types, which provide more choices and can better reflect subtle structural phenomena and differences between phenomena. In addition to the conventional structure, it can also conveniently simulate the mechanical behavior of actual structures such as pipes, joints and fiber reinforced structures.

L There are many material models, including the constitutive relation and failure criterion of materials, and only the rubber material model has 16. In addition to conventional metal materials, it can also effectively simulate special materials such as composite materials, soil, plastic materials and high-temperature creep materials.

Comparative analysis of ANSYS software, ABAQUS software and ADINA software

1. Global popularity:

All three softwares are internationally renowned finite element analysis softwares and have their own extensive user groups all over the world.

ANSYS software enjoys a good reputation among users who are committed to linear analysis. ABAQUS software is dedicated to complex and in-depth nonlinear engineering problems; In addition to solving nonlinear problems, ADINA software's multi-physical field fluid-solid coupling solution function is also the only patented technology in the world.

2. Application areas:

The three kinds of software are all large-scale general analysis software, and they all have their own extensive application fields.

ANSYS pays attention to the expansion and combination of application fields, and has covered a wide range of research fields such as structure, temperature, fluid, electromagnetic field and multi-physical field coupling. ABAQUS only has the function of structural analysis, and its function is limited to the field of structural mechanics. ADINA software, like ANSYS software, contains functions such as structure, temperature, fluid and fluid-solid coupling, so it is widely used.

3. Performance-price ratio

All three softwares are American finite element analysis softwares, and the price difference is not particularly big, but ABAQUS software is the cheapest as a whole because it only has the function of structural analysis. However, if fluid calculation or multi-physical field coupling solution function is needed, I believe ANSYS software and ADINA software will be better choices.

4. Solve the function

For the conventional structural linearity problem, all three softwares can solve it well, and they are similar in model size limitation, calculation flow and calculation time.

ABAQUS software and ADINA software have obvious advantages in solving nonlinear problems. ANSYS software and ADINA software have incomparable advantages in the coupling function of fluid and multi-physical fields.

5. Man-machine interface

ANSYS/Workbench, ABAQUS/CAE and ADINA/AUI are all CAD-based modeling and visualization window systems with good human-computer interaction characteristics. All three softwares provide command stream input except window operation, but ABAQUS/CAE does not support CAE interface operation of all command streams.

6. Modeling method

Both ANSYS software and ADINA software adopt solid modeling technology with Parasolid as the core, so they can exchange data seamlessly with other CAD software with Parasolid as the core, and their own modeling functions are very powerful. Two modeling methods of ABAQUS software, CAE module and input file, were developed by two different companies. CAE module has incomplete functions, and some functions can only be realized by editing INP input files.

7. Grid division

All three softwares provide a variety of mesh dividers, which can be used for free mesh generation of complex models.

In addition to common mesh generation, ANSYS and ADINA software can also automatically generate hexahedral meshes of complex models, which saves technicians' working time and ensures the accuracy of meshes.

8. Comparison of comprehensive performance

The command flow operation of ANSYS software is very convenient, and it has advantages in structural cycle optimization, but at present it is only limited to the linear aspect, with poor nonlinear function and basically no function;

ABAQUS software has some characteristics in explicit nonlinearity, but implicit nonlinearity is not as good as ADINA, and it does not have the function of fluid.

ADINA is one of the most powerful finite element softwares in the world, and it has the best fluid-solid coupling analysis function in the world.