Abstract Fiberglass-reinforced plastics (FRP) composite materials for ships that are widely used marine-grade unsaturated polyester resin matrix and combimat fiber, a combination of chopped strand mat (CSM) woven roving (WR) fibers. Although less popular than marine CSM–WR, biaxial warp-knitted glass fabrics have the potential to be applied as fiber laminates ship hull materials. A comparative ...

Abstract— A classical plane problem of the theory elasticity about a crack in stretched orthotropic elastic unbounded is considered, which leads to singular solution for stresses vicinity edge. The relations generalized elasticity, including small scale parameter, are given. equations higher order than and allow eliminating singularity solution. parameter determined experimentally. results obta...

Ellen Lackey, “Combined Effects of Moisture, Temperature, and Load on Pultruded Composites,” Technical Papers B CFA Composites 2002, CDROM, 2002. (Selected as Best Pultrusion Paper and Co-winner for Best Overall Paper for Composites ‘02) Brief Abstract: The objective of this study was to thoroughly document the effects of heat, moisture, and loading conditions on the properties of a polyester p...

Fused Filament Fabrication (FFF) is a promising technology for production of fiber-reinforced composite parts with complex geometries. Continuous Fiber Reinforced Additively Manufactured (CFRAM) are becoming more prominent due to their mechanical performance, light weight, and recyclability. CFRAM components lighter, yet they strong materials wide range potential applications in the automotive ...

In this paper, ultrasonic wave propagation in three phases (3P) of composite materials was investigated. The simulation was conducted by PZFlex analysis code, a time domain finite element program. The reflection and transmission characteristics with different shapes of middle layer between glass fiber and epoxy resin are investigated in order to understand basic ultrasonic behavior of energy di...