BEASY Software and Services

BEASY software provides a range of integrated software modules to help engineers perform fatigue crack growth analysis. BEASY can help your engineers improve their damage tolerance analysis work by providing them with tools to more accurately understand the behavior of flaws in critical structural components. Higher fidelity data characterizing critical crack sizes and crack growth rates will improve structural life estimates. If a crack is found during routine inspection a BEASY crack growth simulation can be used to determine if this crack will continue to grow and if so how much longer the asset can safely operate before repair is necessary. BEASY's automatic crack growth capability can also be used to support the non-destructive inspection (NDI) process. BEASY's crack path predictive capability can be used to guide NDI equipment operators to those fracture critical areas of the structure.


BEASY Fatigue & Crack Growth

BEASY Fatigue & Crack Growth software enables engineers to quickly develop full 3D virtual prototypes based on the actual geometry of structures and components to predict how cracks will develop and impact their life and integrity.

BEASY Crack Simulation Technology provides easy to use crack modelling tools to predict:

  • Stress Intensity Factors
  • Crack Growth Rates
  • Crack Growth Paths
  • Critical Crack Sizes

The BEASY software modules are available on the BEASY Mechanical  Desktop and are all based on easy to use, process driven, menus. The intuitive interfaces do not require extensive training or constant monitoring of user guides. Even if you have not used the software for while it is easy to begin a new project using BEASY's interactive help.

BEASY's Fracture Mechanics Software provides crack modelling tools to aid decision-making processes and discover potential problems at the design stage. BEASY advanced fracture mechanics software provides a radically improved approach to predictive computational analysis.

The BEASY solver supports contact and thermal analysis as well as common body force loadings (i.e. rotation, acceleration). Both node-to-node and node-to-surface contact solutions are available. Frictional contact analysis is also possible using BEASY's efficient load increment algorithms to capture the non-linear load-displacement behavior. The coupled contact-fracture mechanics solutions available in BEASY use an innovative approach and provide a unique capability for investigating fretting fatigue damage and crack face to face contact.

BEASY Automatic Crack Growth modelling technologies provides quick and accurate tools to:

  • Add cracks to models
  • Predict stress intensity factors
  • Predict crack growth rate and direction
  • Simulate crack growth in complex 3D structures
  • Predict residual strength

The BEASY Fracture workbench simplifies and automates the difficult task of creating a mesh to represent a crack in a complex 3D model. The user selects the type and shape of crack from a library of crack shapes, identify its location on the model and the software does the rest.


Automatic Crack Growth

Automatic Crack Growth

The BEASY Crack Growth Wizard not only allows users to insert cracks in structural models but allows
them to grow the cracks under fatigue loading as well.  

A variety of fatigue crack growth models, including the simple Paris Law, Walker-Change, and NASGRO can be selected. BEASY is fully integrated with the NASGRO 2,3 material database and interfaces with NASGRO 4 and 5. The user can select the required material from a series of dropdown menus. 

There is full support for using Load Spectrum (LSP) data to drive the crack growth process and a range of LSP formats are available; including standard block, sequential loading, and multi-axial load spectrum formats.

The SIF data and crack growth rate data can be quickly processed using graphing functions available in the Crack Growth Wizard or manipulated using BEASY's templates to display fatigue crack growth results in a series of charts and summary data tables using specially designed Excel macros.  This data is also output in tabular formats for easy import into common desktop software.


Stress Intensity Factors

BEASY supports mixed mode crack growth and computes Ki, Kii and Kiii. There are options to select different methods of computing the SIF including J Integral and Crack Opening Displacement (COD).


Residual Stresses

Crack growth through residual stress fields can be simulated, where residual stress fields are obtained from FEM models. Allowing for reduced crack growth rate due to surface treatments, such as laser shot peening or cold worked holes to be evaluated. In addition an increase in the crack growth rate may be computed when tensile stresses from welding are included in the simulation. The computation of the crack growth rate is based on the real variation of the residual stresses in the model allowing the change from compressive to tensile stresses to be captured and included in the fatigue life assessment.


Contact Simulation

fretting case study largeBEASY provides a powerful modelling tool to predict the critical stresses and slip motion of components in contact including closed crack faces to provide accurate prediction of contact stresses, slip and wear data prediction. BEASY's nonlinear contact algorithm automatically computes the change in position of the contact surfaces and the resulting stress redistribution.

Predicting the behaviour of cracks under compressive loading provides an important analytical component and is helpful in understanding the fretting fatigue behaviour of fracture critical components.

The constraint based contact algorithm driving the BEASY analysis computes the appropriate surface contact conditions (e.g., open, closed, sliding) and enforces this condition during the iterative solution phase. Products can be subjected to loading sequences to simulate the in service conditions. Load transfer characteristics as well as detailed stress history are predicted.

Predicting the behaviour of cracks under compressive loading provides an important analytical component and is helpful in understanding the fretting fatigue behaviour of fracture critical components. 

Fatigue Crack Growth Criteria

The crack growth laws supported include:

  • Paris
  • Forman
  • Rhodes
  • NASGRO (2, 3, 4, 5)
  • Walker Chang
  • Vasudevan
  • Unigrow
  • Navarro (short cracks)
  • User defined tabulated da/dn

Retardation Models

Retardation models can be used with selected growth equations to represent the effect of plasticity in the model.

  • Generalised Willenborg
  • Modified Generalised Willenborg
  • Walker Chang

Crack Growth Direction Criteria

  • Maximum Principal Stress (2D only)
  • Minimum Strain Energy Density
  • Multi-axiality (Q Plane) searching
  • Mode 1 growth

Materials Database

  • NASGRO 2/3 databases (Over 360 materials are represented)
  • Ability to link to the NASGRO 4 & 5 database
  • Alternatively users can define their own material properties

Fatigue Crack Growth Results

  • Stress Intensity Factors
  • Crack and model deformation
  • Crack and model stress field
  • Crack propagation path
  • Crack growth rate

Material Properties

  • Isotropic, linear elastic for 3D and 2D crack growth simulation
  • Isotropic, linear elastic for 3D, 2D and axisymmetric for stress analysis only
  • Orthotropic and anisotropic linear elastic for 2D and 3D for stress analysis only

Loadings

  • Multi axial fatigue
  • Thermal
  • Non-linear contact

Request more information on: Crack Growth Simulation and Defect Assessment Software


Integration with FEM

The BEASY FE Interfaces are used to leverage existing FE models and solutions; automatically creating BEASY models of fracture critical sections identified in the FE model. The BEASY model can then easily be modified using the BEASY fracture toolset to insert cracks and predict crack growth rates. The BEASY crack growth solutions can be viewed in the the FE ABAQUS and PATRAN post-processors to display the opening of the crack and the incremental crack growth trajectory. The software systems are tightly integrated making it easy to perform 3D crack growth studies using this proven technology. The BEASY FE Interface software will be make it possible to obtain accurate SIF data and crack growth rates without the additional modeling expense associated with methods currently available using FE software. It makes sense to use the methodology most suited for the job and in this case the BEASY FE Interface software combines the advantage of using large scale FE models with the accuracy of BEASY’s crack front SIF solutions.

BEASY PATRANBEASY PATRAN

THE BEASY Patran Interface provides users with the capability to directly build BEASY models within MSC Patran's modeling environment. FE models can also be converted to BEASY models within the PATRAN environment. Custom interfaces have been developed to support creation of BEASY models. Once the BEASY model is complete the BEASY fracture simulation tools can be used to insert cracks. The BEASY Patran Interface also supports the design of non-standard crack shapes which can later be accessed using BEASY’s Crack Library Management tool. MSC Patran users retain full access to all the features within the Patran modeling environment while building BEASY models.

Request more information on BEASY PATRAN

BEASY ABAQUSBEASY ABAQUS

The BEASY ABAQUS software interface provides an integrated approach between BEASY and ABAQUS for stress, fracture and crack growth simulation. It provides the tools to leverage existing FEM models and results to fast track the development of BEASY fracture and crack growth models. The BEASY results can then be visualised within the ABAQUS CAE environment.

It also provides the technology to derive from non-linear and transient ABAQUS models residual stress fields for use in BEASY fracture or crack growth simulation models.

Request more information on BEASY ABAQUS

BEASY ANSYSBEASY ANSYS

The BEASY ANSYS software interface provides an integrated approach between BEASY and ANSYS for stress, fracture and crack growth simulation. It provides the tools to leverage existing FEM models and results to fast track the development of BEASY fracture and crack growth models.

It also provides the technology to derive from non-linear and transient ANSYS models residual stress fields for use in BEASY fracture or crack growth simulation models.

Request more information on BEASY ANSYS

BEASY NASTRANBEASY NASTRAN

The BEASY NASTRAN software interface provides an integrated approach between BEASY and NASTRAN for stress, fracture and crack growth simulation. It provides the tools to leverage existing FEM models and results to fast track the development of BEASY fracture and crack growth models. The BEASY results can then be visualised within the NASTRAN post-processing tool via a NASTRAN op2 file.

It also provides the technology to derive from non-linear and transient NASTRAN models residual stress fields for use in BEASY fracture or crack growth simulation models. 

Request more information on BEASY NASTRAN

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  • BEASY software products
  • Consultancy & Engineering
  • BEASY support services
  • Training
  • R&D and Customisation

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Here are a series of case studies for the types of projects BEASY have helped with worldwide.

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