Woven preform for structural joints

摘要: A preform for structural joints has a three-dimensional weave architecture with fill fibers woven to provide layer-to-layer interlocking of layers warp fiber as well within each layer. At least two legs extend from base, the base and having at fibers. The are connected symmetrical, distributed-column intersection, an odd number columns being located legs. outer ends preferably have tapers formed terminating in stepped pattern. Tracer that include colored strand x-ray opaque into selected locations fiber. tracer allow identification location or portion through visual inspection by image.