Manufacturing Industry
Software predicts composite cracking: Abaqus FEA software now gives engineers a better understanding of crack propagation.(MATERIALS)
Design News, September, 2005 by Ogando, Joseph
How do laminated composites crack and lose their strength? It's an important question as commercial aerospace and other industries increasingly consider composites for critical load-bearing structures. Abaqus Inc. recently introduced software that promises to move predictions of crack behavior into the engineering mainstream.
Software simulations of crack propagation based on a method called Virtual Crack Closure Technique (VCCT) have been in use for more than 15 years now.
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This method calculates the energy required for a crack to grow at the structure's bond lines under a given set of loading conditions. It can, for example, help determine whether the shear forces on an aircraft skin-stringer panel would...
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