Nondestructive Detection of Fiber Waviness in Laminates
Agency / Branch:
DOD / NAVY
The Numerical Technology Company and North Star Imaging (NSI) team in this project to develop and verify a Computed Tomography (CT) based technology for accurate three-dimensional measurement and characterization of fiber waviness (wrinkles) in fiberglass/epoxy and carbon/epoxy composite structures. This team is supported by Bell Helicopter Textron who will provide the composite structures for the technology verification. The nondestructive evaluation (NDE) technology will enable: (a) ability to measure wrinkles and porosity in large structures and thick parts such as spars and yokes; and (b) automated three-dimensional wrinkle characterization. Wrinkles and porosity defects as well as their combinations contribute to structural failure. Ability to capture the shape of small wrinkles embedded deep inside a thick glass/epoxy structure as well as detect multiple wrinkles through the thickness will be verified. As wrinkle geometry and porosity distributions in the fatigue-critical composite parts are three-dimensional, accurate 3D measurement ability will be developed. The defect measurements will also converted into 3D finite element models for assessment of effects of the manufacturing defects on structural performance.
Small Business Information at Submission:
Numerical Technology Company
120 Annie Cook Way Roswell, GA 30076
Number of Employees: