NDI Process Development

NDI Process Development

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Integrate and Optimize NDI Processes

Our client was looking for a technique to detect and quantify fiber defects, such as wrinkling and waviness, in continuous glass fiber in reinforced epoxy-matrix composites used in helicopter blades.

DTB’s solution was to use microfocus computed tomography (CT) with special beam hardening in order to detect low contrast fibers. We performed 3D reconstruction to understand the fiber defects in all orientations and to generate critical-orientation serial sections through the volume. We also performed physical serial sectioning and compared the sections to CT data in order to establish one-to-one correspondence for technique validation and POD estimation.

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