Unidirectional Fiberglass Laminate

This paper investigated delamination failure in a unidirectional curved composite laminate.

Unidirectional fiberglass laminate.

Fiberglass is laid into a mold that will create the boat s hull. Knitted warp unidirectional 0 deg fabrics use for laminate where strength and stiffness in specific direction or plain is required. Acp composites fiberglass unidirectional fiber fabric is fray resistant woven with s glass and ideal for high strength lightweight precise applications. The curved laminate failed unstably by delaminations developing around the curved region of the laminate at different depths through the thickness until virtually all bending stiffness was lost.

Unidirectional fabrics hexcel s unidirectional reinforcements are nonwoven carbon fabrics that have 99 of the areal weight in the 0 direction and are stabilized by a thin proprietary warp thread. A unidirectional ud fabric is one in which the majority of fibres run in one direction only. A resin in liquid form is catalyzed and applied to the fiberglass in mold. This combination not only gives high strength and stiffness along the longitudinal 0 axis but also provides cross strength and stiffness 90 degrees to the longitudinal axis.

These fabrics are ideal as a wet lay up or resin infusion alternative to unidirectional prepreg tapes. Wet out quickly for excellent resin reinforcement ratio. X 50 e glass 0 degree unidirectional roll. Delamination was assumed to initiate at the location of the highest radial stress in the curved region.

It will cure and bond to the fiberglass chemically producing a great deal of heat called thermosetting. Fiberglass repair tips a typical fiberglass repair in cross section. Multiple layers and various techniques are involved but your end result is the boat. It is critical that the scarf angle is set at a minimum ratio of 12 1 and that the patch thickness matches the original laminate.

Uls bo tuff e glass is a continuous unidirectional e fiberglass laminate combined with a 50 50 woven fiberglass inlay scrim that has high strength and stiffness along the longitudinal 0 axis and provides cross strength 90 degrees to the longitudinal axis. Approximate roll length.