Results 261 to 270 of about 155,263 (312)

Fiber-Reinforced Composites

2008
Part A. Fiber-Reinforced Concrete 22.1 Historical Development 22-2 22.2 General Characteristics 22-2 22.3 Mixture Proportioning 22-4 22.4 Mechanics of Fiber Reinforcement 22-5 First Cracking Load • Critical Fiber Length: Length Factor • Critical Fiber Spacing: Space Factor • Fiber Orientation: Fiber Efficiency Factor • Static Flexural Strength ...
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The Fiber-Reinforced Composite

1975
Exact elastodynamic solutions within the context of classical elasticity theory are not available for fiber-reinforced composites. It is, however, to be expected that qualitatively a difference analogous to the one observed in laminated solids, should exist for dispersion of waves propagating in the direction of the fibers, and normal to the fiber ...
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Extruded Fiber-Reinforced Composite

2002
Publisher Summary High performance fiber-reinforced cementitious composites (HPFRCC) exhibit increased tensile strength, enhanced toughness, and sometimes, a strain-hardening response. The amount of fiber reinforcement needed to achieve this behavior is higher than what can typically be added to conventional cast-in-place concrete.
B. Mu, M.F. Cyr, S.P. Shah
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Optimization of fiber reinforced composites

Composite Structures, 2000
A new method for determining the optimal direction and volume fraction of fibers at each point of a structure has been developed. A finite-element discretization is used. The fiber orientation and the fiber volume fraction are assumed to be constant within each element of the model, but they vary from element to element.
G. Duvaut, G. Terrel, F. Léné, V.E. Verijenko   +3 more
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Fiber reinforced composites orthodontic retainers.

Minerva stomatologica, 2015
Retention is the phase of orthodontic treatment that attempts to hold teeth in their corrected positions after orthodontic therapy is completed. The aim of this study was to consider fiber-reinforced composites (FRC) as a possible alternative to conventional multistranded stainless steel wire for retention through SEM analysis.Two different FRC ...
LUCCHESE , ALESSANDRA, Manuelli M, Bassani L, Albertini P, Matarese G, Perillo L, Gastaldi G, GHERLONE , FELICE ENRICO   +7 more
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Durability of Fiber-Reinforced Composites

SP-192: 2000 Canmet/ACI Conference on Durability of Concrete, 2000
Glass fiber-reinforced composites, when subjected to wetting/drying cycles, can become brittle. This is mainly due to the precipitation of calcium hydroxide crystals at the surface of the fiber, which block the fibers and reduce their deformation. The addition of a polymer to the cementitious matrix will not prevent such phenomena.
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Acoustoelasticity in Fiber Reinforced Composites

1989
With the increased use of polymer composite materials in automotive and aerospace structures comes an increased need for nondestructive evaluation techniques to characterize material properties and to determine the material’s state of stress. One method for the evaluation of applied and residual stresses is acoustoelasticity, a technique based on the ...
Mase, G., Wong, T. E., Johnson, G.
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Coir Fiber-Reinforced Composites

2016
Nowadays, fiber-reinforced polymer composites have played a significant role in many different fields of applications, regarding their high specific strength and high modulus. The fiber which serves as reinforcement mechanism in polymer composites may be either synthetic or natural.
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Delamination and Manufacturing Defects in Natural Fiber-Reinforced Hybrid Composite: A Review

Polymers, 2021
R A Ilyas, Michal Petru
exaly  

Failure of Fiber-Reinforced Composites

2016
Generally, we start to refer to failure of a material, when the material no longer fulfills its intended use. In the context of this book the term “failure” always refers to the structural failure of the material due to mechanical load. The primary source for this failure are cracks forming within a material causing it to reduce its effective cross ...
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