SIF along the line using Beasy FASST Fracture Assessment Tool

BEASY Fracture Assessment Tool (FASST) can be used to quickly assess the effect of a crack on the structural integrity of a component or structure by calculating the maximum stress intensity factor for a given crack size using the predicted 3D stress at any location. The sensitivity of the stress intensity factor to the crack size at a location can also be investigated and the data viewed graphically.

Typical Applications

Multiple plots of the Stress Intensity Factor results can be created with results stored in a database; new data points can be added with only the additional data requiring new computations
Quick assessments can be made in the reference solution mode. More accurate data can then be computed with the BEASY stress intensity solutions
Provides an assessment of the risk of crack growth or failure at multiple locations



Knowledge database can be created about a structure


Cracks can be added to models without the need to define any complex crack orientation; the crack is always added normal to the maximum principal stress direction

Advanced Structural Damage Analysis

Material properties of structural components often degrade over time as a result of cyclic loading, fluctuations in temperature, or corrosive environments. This degradation of material integrity may manifest itself as discrete flaws in the structure or through localized loss in the section thickness of a critical support member.

With BEASY FASST there are no restrictions on component geometry, loading, or crack shape. We can help determine critical crack sizes so that you can improve the timing and quality of your inspection and maintenance programs.

Using BEASY’s crack growth technology our staff can define the most likely crack growth path and help your NDT technicians search for flaws in structural components.

Accurate Data with BEASY Stress Intensity Solutions

The validation model below shows a rectangular block, 100 x 100 x 200, which is subject to a unit longitudinal stress. The SIF for this model was calculated using: NASGRO 5.2, a BEASY FASST reference solution, full BEASY BEM simulations within the FASST framework. Comparison of results shows strong agreement between these three methods for this simple case.

The BEASY FASST reference solution is an approximation in which various standard handbook solutions are applied, together with most positive principal stress taken from the un-cracked simulation of the structure, to determine a single SIF value. These approximations may break down as the models get more complex, however, it provides a method for obtaining results very quickly.

The BEASY BEM solution is not linked to any reference solutions implying that these results should be similarly accurate for more complex structures provided the models are suitably refined.

assess the effect of a crack on the structural integrity of components

Residual Stress and Fatigue Load Impact

The tool allows the user to define a simple load cycle by combining various load cases. These load cases can be included as either: constant loading (such as residual stress) or variable loads (fatigue loading). As the BEASY FASST tool is analysing a snapshot in the crack growth process with the crack at a specific size there is no need to model more advanced load cycling.

If the full crack growth process, including complex load cycling, is required then this can be modelled with BEASY’s fatigue crack growth module.

Elevate your expertise

BEASY offers a variety of training options: from comprehensive full courses, to webinars and tailored training program, our experts in corrosion and fracture ensure that you get the most out of BEASY's software.

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