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e-Xstream engineering






Laminate T-stiffeners are widely used in the aerospace industry to transfer the 3D complex loads between the stiffeners and the skins. However, the way they are manufactured can affect the inherent properties.

In this case, we have considered that the stiffener and the skin were assembled using an RTM process but because of the poor infiltration of the resin due to the fiber orientation changings, some dry spots appear in the noodle. These dry spots or voids affect the mechanical properties of the noodle and this knock-down of properties must be taken into account during the design process.

Results Validation:

With Digimat, effective modeling solution enables to understand the sequence of failure of the structure and the resultant load level. The results allowed to capture the progressive loss of stiffness of the structure and the resulting load.

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