초록 ▼

A low-cost composite structure, having near isotropic mechanical properties, produced by molding a matrix material with a reinforcing fiber element. The reinforcing fiber elements are comprised of three or more fibers to form a three-dimensional figure. In the preferred embodiment at least one fiber

A low-cost composite structure, having near isotropic mechanical properties, produced by molding a matrix material with a reinforcing fiber element. The reinforcing fiber elements are comprised of three or more fibers to form a three-dimensional figure. In the preferred embodiment at least one fiber is oriented in each of the mutually perpendicular planes similar in appearance to a child\s jack. The matrix material may be any material which provides a suitable bond with the reinforcing fiber elements.

대표청구항 ▼

A material formed by molding, having a composite structure comprising: a matrix material; and a plurality of discrete reinforcing fiber elements randomly oriented, overlapping and interlocking with respect to each other and contained in and bonded to said matrix material, said fiber elements further

A material formed by molding, having a composite structure comprising: a matrix material; and a plurality of discrete reinforcing fiber elements randomly oriented, overlapping and interlocking with respect to each other and contained in and bonded to said matrix material, said fiber elements further comprising: at least three uni-directional fibers, each having a longitudinal axis, joined together before adding said matrix material, so that each of said fibers is oriented in fixed, skewed and overlapping relationship with the remaining of said at least three fibers and at least one of said at least three fibers lies in a plane other than the plane of said axes of the remainder of said at least three fibers.