Static and dynamic mechanical analyses of E-glass–polyester composite used in mass transit system

Abstract

Composite materials have distinct properties such as a high strength-to-weight ratio, high corrosion resistance, a high modulus-to-weight ratio, and wear resistance. The potential, strong mechanical properties and lower cost properties of E-glass fibre motivated us for this work. Tensile, flexural, and Izod impact tests were used in the current study to conduct a static analysis of E-glass reinforced isophthalic polyester composite and E-glass reinforced general purpose (GP) or orthophthalic polyester composite. Thermal-mechanical behaviour was investigated using thermogravimetric analysis and dynamic mechanical analysis tests. Furthermore, the surface morphology of the tested composites was examined using a scanning electron microscope. When compared to E-glass reinforced GP polyester composite, E-glass/isophthalic polyester composite demonstrated superior flexural properties and thermal stability. However, the tensile and impact properties of E-glass/GP polyester composite were found to be higher than those of E-glass/isophthalic polyester composite. SEM images show fibre pull-out, matrix cracking, and fibre breakage, among other things. The loss modulus and damping values for E-glass reinforced GP polyester composite were found to be greater than those for E-glass reinforced isophthalic polyester composite. The current composite can be used in marine applications, particularly the hull: frame or body of the boat.

Fractographic analysis of fiber‐reinforced polymer laminate composites for marine applications: A comprehensive review

“…Because of the growing number of composite construction applications, a thorough investigation of the microscopic process of load transmission between the matrix and fiber, as well as significant delamination failures at the macroscopic level, is required. 35 The failure modes and stress distribution in FRP laminate composite are both complex and not fully understood. Nonetheless, one defining aspect of composite structures is that failure is usually caused by a gradual accumulation of micro cracks and delamination, which leads to structural collapse.…”

“…9,10 These materials are more resistant to corrosion and marine environmental factors like seawater, UV, organisms, and fatigue stress than conventional materials and have a greater specific tensile strength. [11][12][13][14][15] Glass-fiber reinforced polymer (GFRP) composites, were initially introduced in the 1940s for use in Navy personnel boats. [16][17][18][19][20] GFRP materials have since gained widespread acceptance for use in yachts, recreational vehicles, performance craft (i.e., racing boats), and small business vessels like fishery trawlers.…”

Experimental investigation on mechanical performance of PVC foam‐based E‐glass isophthalic polyester composites

“…Additionally, they exhibit excellent crashworthiness, have the capability to integrate multiple functions into a single structure, and offer savings in both time and cost during assembly. [3][4][5] The basic structure of a sandwich consists of two thin and stiff facings (or skins) that enclose a thick and lightweight core. 6 This configuration allows for a combination of high strength, stiffness, and low weight, making sandwich composites highly desirable for a wide range of engineering applications.…”

“…These include a lightweight design with a high strength‐to‐weight ratio, exceptional energy absorption abilities, a favorable stiffness‐to‐weight ratio, and good damping properties. Additionally, they exhibit excellent crashworthiness, have the capability to integrate multiple functions into a single structure, and offer savings in both time and cost during assembly 3–5 . The basic structure of a sandwich consists of two thin and stiff facings (or skins) that enclose a thick and lightweight core 6 .…”

Mechanical performance of e-glass reinforced polyester resins (isophthalic and orthophthalic) laminate composites used in marine applications

“…These resins are inexpensive and versatile because their curing process and mechanical properties can be altered by varying the monomer of the polyester chain or the quantity of styrene. 1 Glass fibre reinforced polymer (GFRP) composites have shown to be an exceedingly resistant underlying material in weight-sensitive mass transportation applications such as automobiles, rail routes, marine ferries, as well as common designs and outdoor supplies. They are popular due to their excellent strength-to-weight ratio, inexpensive cost and ease of usage.…”