Effect of fiber and resin types on mechanical properties of fiber-reinforced composite pipe

Abstract

The aim of this study was to evaluate the effects of the types of fiber and resin on the mechanical properties of polyester composite pipes. Orthophthalic, isophthalic and vinyl ester resins were used as the matrix; E-glass, electrical/chemical resistance (ECR)-glass and basalt fibers were used as reinforcement; and 98% silica (SiO2) sand was used as filler in mixtures. Samples were produced by the centrifugal casting method. Samples cut from the produced pipes were tested to determine stiffness and longitudinal and circumferential tensile strength. It was found that mixtures with orthophthalic resin had the highest stiffness and mixtures with vinyl ester resin had the highest circumferential tensile strength. Samples containing basalt fibers showed 10·8% higher stiffness, the highest longitudinal tensile strength and 18·8% higher circumferential tensile strength compared with the mixture with E-glass fibers. Samples with ECR-glass fibers showed 20·2% higher longitudinal tensile strength and 5·9% higher circumferential tensile strength. The basalt-reinforced composite pipe had 2·6% less resin than the E-glass-fiber-reinforced pipe. As a result, the mechanical properties of the polyester composite pipes changed with different types of resin and fiber. Vinyl ester resin and basalt-fiber-reinforced pipes showed better mechanical performance than orthophthalic resin and E-glass-fiber-reinforced pipes. The fiber–matrix bonding surfaces were investigated by scanning electron microscopy.

Design of the composite hydraulic cylinder with geodesic dome trajectory: A numerical study

“…Furthermore, it was concluded that the low‐content graphene platelets additive increased the number of fatigue cycles and improved fatigue life. In the study conducted by Gokce et al, [ 20 ] experimental studies were carried out to determine the effects of matrix and fiber materials on the mechanical properties of composite pipes. Orthophthalic, isophthalic, and vinyl ester resins were used as matrix material, while E‐glass, electrical/chemical resistance (ECR)‐glass and basalt fibers were used as fiber material.…”

“…Some design parameters such as stacking sequence, [16][17][18][19] fiber material, [20] fiber orientation [21] and nanomaterial additive [22] are significantly effective on the mechanical properties of the composite overwrapped pressure vessels and composite pipes. Therefore, many studies have been carried out to determine the effect of design parameters on mechanical properties.…”

“…Therefore, many studies have been carried out to determine the effect of design parameters on mechanical properties. [16][17][18][19][20][21][22] In the study conducted by Sharma et al, [23] FEM analyses for the composite pressure vessels with six different dome shapes as hemispherical, paraboloid, ellipsoid (I), ellipsoid (II), ellipsoid (III), and isotensoid were carried out, and effects of the dome shape on the burst pressure, failure characteristics and weight performance were examined. For each dome shape, mathematical models of the thickness along the dome were created depending on the dome height.…”

Effect of Grain Distribution on Resin Consumption and Mechanical Performance of GRP Pipes

“…It was observed that first-ply-failure and functional failure pressures increase linearly as the core thickness increase. Gökçe et al [16] analysed the effects of the type of resin and fiber on the mechanical behaviours of the polymer composite pipe manufactured by the CC technic. Isophthalic, ortophthalic, and vinyl ester resin were used as matrix material, E and ECR glass fiber were used as reinforcement material, and silica sand was used as filler material.…”