Weight Saving Approaches Through the Use of Fiber Glass-Reinforced Plastic

1975 ◽  
Author(s):  
Eldon D. Trueman
Keyword(s):  
Fiber Glass ◽  
Weight Saving ◽  
Reinforced Plastic

Experimental Research on Longitudinal Wave Velocity of Fiber Glass Rod and its Internal Viscous Damping

1991 ◽  
Author(s):  
Yu-Ren Hu ◽  
Jun Xu
Keyword(s):  
Wave Velocity ◽  
Experimental Research ◽  
Longitudinal Velocity ◽  
Viscous Damping ◽  
Longitudinal Wave Velocity ◽  
Fiber Glass ◽  
Fiber Reinforced Plastic ◽  
Dynamic Factors ◽  
Reinforced Plastic ◽  
Theory Of Viscoelasticity

Abstract Fiber glass rod (i.e. FGR) is an uniaxial fiber reinforced plastic. In the movement of the rods, some dynamic characteristics such as the wave velocity and the damped coefficient are most important dynamic factors in analysis of the dynamic response of the rods. Generally, FGR are composed of two materials, fibers and resins. The particularities of the parameters for the wave velocity, etc of FGR are mainly depend on these two materials of different properties. This paper studies longitudinal velocity for FGR theoretecally and measure it by vibration method. The viscous damped coefficient is also measured by the theory of viscoelasticity. This paper presents that the viscous damped characteristic of material is mainly depend on the coupling mass between the rods.

Numerical simulation of the resin infusion process of fiber glass reinforced plastic pultruded sheet

2021 ◽  
Author(s):  
QianJin Xia ◽  
MingYang Hao ◽  
Xuewen Yang ◽  
Shuai Zhang ◽  
Hu Wang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Fiber Glass ◽  
Resin Infusion ◽  
Reinforced Plastic

Researches Concerning Structural and Mechanical Behavior of Sandwich Composite Polymeric Products

2012 ◽  
Vol 498 ◽  
pp. 151-160 ◽  
Author(s):  
Constantin Gheorghe OPRAN ◽  
Cătălina Bivolaru ◽  
Diana Murar
Keyword(s):  
Mechanical Behavior ◽  
Structural Behavior ◽  
Sandwich Composite ◽  
Flexural Stiffness ◽  
Constant Force ◽  
Sandwich Composites ◽  
Fiber Glass ◽  
The Core ◽  
Weight Saving ◽  
Specific Factors

The sandwich composite polymeric products have a wide utilization in various fileds like aircraft and automotive construction, load bearing structures, sports equipment, more specifically, wherever weight-saving is required. Sandwich composites polymeric products represent excellent examples of the potential offered by composite materials. The combination of two composite faces and a lightweight polystyrene core allows obtaining a high flexural stiffness with a weak mass. This paper deals with the analysis of the structural and mechanical behavior properties of the core, adhesive and faces, for sandwich composite polymeric products. There are also presented the investigation results on how different specific factors like: mechanical and structural behavior, interface between the faces and core, constant force resistance in time, the reinforcing elements (fiber glass), the polyester core do influence the machinability of sandwich composites polymeric products..

Application of Fracture Mechanics to Anisotropic Plates

1967 ◽  
Vol 34 (4) ◽  
pp. 967-974 ◽  
Author(s):  
E. M. Wu
Keyword(s):  
Fracture Mechanics ◽  
Fracture Criterion ◽  
Empirical Relation ◽  
Orthotropic Materials ◽  
Orthotropic Plates ◽  
Fiber Glass ◽  
Anisotropic Plates ◽  
Balsa Wood ◽  
General Law ◽  
Reinforced Plastic

The conditions necessary for the application of fracture mechanics to anisotropic materials were examined and verified experimentally on orthotropic plates. It was observed that crack extension, by opening and forward sliding, occurred independently and the associated stress-intensity factors at the state of incipient fracture are material constants. An empirical relation (k1/k1c) + (k2/k2c)2 = 1 was found to be a fracture criterion for both balsa wood and fiber-glass-reinforced plastic plates, inferring the existence of a general law of fracture for orthotropic materials.

Analysis of FRP Chimneys Liners under Wind and Seismic Load

2013 ◽  
Vol 790 ◽  
pp. 193-197
Author(s):  
An Xin Ding ◽  
Ai Qing Ni ◽  
Ji Hui Wang
Keyword(s):  
Wind Loads ◽  
Seismic Load ◽  
Single Model ◽  
Fiber Glass ◽  
Earthquake Loads ◽  
Model Method ◽  
Reinforced Plastic ◽  
Internal Forces ◽  
Engineering Staff ◽  
Conjunctive Model

Due to the increase of environment requirements, Fiber glass Reinforced Plastic (FRP) chimney liners are frequently used in coal-fired units. Wind and earthquake loads play an important role in the design of FRP chimney liners. Most of the engineering staff are still accustomed to accept single model, although, conjunctive model can reflect the effect of concrete cylinder on FRP liners and obtain more accurate internal forces of the liners under earthquake and wind loads. In this paper, a novel modified single model method is put forward to obtain accurate results.

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