Abstract
The mechanical and ring stiffness of glass fiber pipes are the most determining factors for their ability to perform their function, especially in a work environment with difficult and harmful conditions. Usually, these pipes serve in rough underground environments of desert and petroleum fields; therefore, they are subjected to multi-type deterioration and damage agents. In polymers and composite materials, corrosion is identified as the degradation in their properties. In this study, tension and compression tests were carried out before and after preconditioning in a corrosive agent for 60 full days to reveal corrosion influences. Moreover, the fracture toughness is measured using a standard single edge notch bending. Ring stiffness of such pipes which, are considered characteristic properties, is numerically evaluated using the extended finite element method before and after preconditioning. The results reported that both tensile and compressive strengths degraded nearly more than 20%. Besides the fracture toughness decrease, the stiffness ring strength is reduced, and the finite element results are in good agreement with the experimental findings.
Highlights
Polymer-based composite materials have several important properties, such as lightweight, specific Young’s modulus, and specific impact resistance, making them suitable for use in a wide range of industrial and aerospace applications [1,2]
The elastic properties of the glass fiber composite pipes (GRP) are listed in Table 2. the pipes used in the present study; are taken from situ and were in service for some time
The mechanical properties of glass fiber composite pipes and the initial ring stiffness were investigated before and after preconditioning in a petroleum wastewater chlorine dioxide corrosive solution. Pipes of this type are considered the primary infrastructure in the petroleum field industry
Summary
Polymer-based composite materials have several important properties, such as lightweight, specific Young’s modulus, and specific impact resistance, making them suitable for use in a wide range of industrial and aerospace applications [1,2]. Glass fiber reinforced plastic is a structural material made of short or long glass fibers and a thermosetting resin. Quartz particles are sometimes used as reinforcement by combining them with epoxy resin, forming the composite matrix. This matrix and numerous laminates of glass fiber reinforced polymer are used to make glass fiber reinforced pipes. Plastic composite pipes are a cost-effective alternative to metallic pipes. Metallic pipes are not permitted in applications where corrosion, weight, and environmental impact are critical
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