Tri-angle herringbone tape for composite panels

摘要

A fiber composite tape has a first two-layer strip having a first top layer with fibers angled at φ and a first bottom layer with fibers angled at 0, a second two-layer strip having a second top (or bottom) layer with fibers angled at −φ and a second bottom (or top) layer with fibers angled at 0, and a paper backing tape affixed to the two two-layer strips and joins them side-by-side at their edges to form a seam.

主权项

1. A tri-axial, two-layer fiber composite tape having a first two-layer strip and a second two-layer strip joined side-by-side lengthwise at their edges to form a seam and affixed to a paper backing tape that holds the two strips side-by-side;
wherein the first two-layer strip has a first layer with fibers angled at α degrees affixed to a second layer with fibers angled at 0 degrees; wherein the second two-layer strip has a third layer with fibers angled at β degrees affixed to a fourth layer with fibers angled at 0 degrees; where α, β are non-zero, |α|≠|β|, and α, β have opposite signs.