May 24, 2017
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GENOA 4.4 Released
NANO Capability Introduced
New PFA Unit Cell
New MCO Unit Cell
Issue #22 - 7/16/2013
Structural Health Monitoring Test Validation
Issue #21 - 1/16/2013
Managing Defects & End of Life Prediction / Validation in Composite Wind Turbine Blades
Issue #20 - 4/13/2010
Material Characterization & Qualification (MCQ)
Issue #19 - 11/17/2009
Composite Structures & Parametric Robust Design (PRD)
Issue #18 - 7/13/2009
Numerical Approach to Determine Crack Path and Delamination Growth in Composite Structures
Issue #17 - 5/4/2009
Certification-by-Analysis (CBA)
Issue #16 - 10/20/2008
Material Qualification and Certification Determine Allowables by Means of Virtual Simulation Combined With Limited Testing
Issue #15 - 6/10/2008
Predicting Post-Buckling Response and Ultimate Failure of Composite 2-Stringer Panels
Issue #14 - 4/28/2008
Composite Storage Module Joint Analysis and Test Verification
Issue #13 - 2/25/2008
GENOA 4.3 Release with A- and B-Basis Allowables
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PFA Fatigue VCCT
 

Fatigue with Fracture Mechanics (PFA_FATIGUE_VCCT)

View Product Datasheet (PDF)

Product Highlights:

         Effectively evaluates the fatigue life of a metal structure by combing the Progressive Failure Analysis-Virtual Crack Closure Technique (PFA-VCCT) and Fatigue Crack Growth (FCG) modules together.

         Reliably analyzes the fracture development and growth in a metal structure along the predetermined path under the applied cyclic loading.

         The approach is fracture-mechanics based. It requires:

o        A predetermined fracture path based on either of the following: 1) experimental testing; 2) a preliminary GENOA/PFA analysis; or 3) the user experience. The predetermined path can be effectively prescribed using the GENOA GUI

o        A fatigue crack growth curve (da/dN vs. DK data) for the material under consideration. The curve can be obtained from tests, standard handbooks, or calculated by using GENOA-FCG for a specific panel thickness and stress ratio

o        The S-N curve for the selected material (derived from tests or found in the open literature).

         Can be used with the GENOA-PA to account for the probabilistic nature of fatigue.

         The approach is restricted to linear elastic materials and shell elements.

Applications/Benefits:

         Accurately evaluates the service life of metal structures subject to cyclic loads.

         Effectively analyzes the development of the fatigue failure initiation site in aerospace, automotive and other metallic structures.

         Accounts for the probabilistic nature of fatigue.

 



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