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Author : Prabhu Madabhusi-Raman
Release : 1995
Genre : Composite materials
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Analysis of Mode-I Fracture of Wood/fiber-reinforced Plastic (FRP) Interface Bond by : Prabhu Madabhusi-Raman
Download or read book Analysis of Mode-I Fracture of Wood/fiber-reinforced Plastic (FRP) Interface Bond written by Prabhu Madabhusi-Raman. This book was released on 1995. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Brent Stephen Trimble
Release : 1999
Genre : Adhesive joints
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Durability and Mode-I Fracture of Fiber-reinforced Plastic (FRP)/wood Interface Bond by : Brent Stephen Trimble
Download or read book Durability and Mode-I Fracture of Fiber-reinforced Plastic (FRP)/wood Interface Bond written by Brent Stephen Trimble. This book was released on 1999. Available in PDF, EPUB and Kindle. Book excerpt:
Author : BS. Trimble
Release : 2000
Genre : Bonded interface
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Effect of Moisture on Fracture Toughness of Composite/Wood Bonded Interfaces by : BS. Trimble
Download or read book Effect of Moisture on Fracture Toughness of Composite/Wood Bonded Interfaces written by BS. Trimble. This book was released on 2000. Available in PDF, EPUB and Kindle. Book excerpt: Current research on wood reinforcement has focused on the use of fiber-reinforced plastic (FRP) strips or fabrics bonded to wood members. Although significant increases in stiffness and strength have been achieved by this reinforcing technique, there is a concern about the reliable performance of the wood-FRP interface bond, which can be susceptible to delamination. The objective of this study is to present a combined analytical/experimental study to evaluate the effect of moisture on fracture toughness of composite/wood bonded interfaces under Mode I loading. A contoured double cantilever beam (CDCB) specimen is used to characterize the fracture toughness of both wood-wood and wood-FRP samples. The specimens are designed by the Rayleigh Ritz method to achieve a linear rate of compliance with respect to crack length and are calibrated experimentally and also analytically by the finite element method. Both wood-wood and wood-FRP samples are tested under dry and wet conditions, and bonded interface fracture toughness data under Mode I loading are obtained. The guidelines and procedures for the modeling and design of CDCB specimens for hybrid or dissimilar adherends using a Rayleigh-Ritz model are presented briefly, and a modified Rayleigh-Ritz method is further developed. The effect of moisture on fracture toughness is evaluated, and increases in interface fracture toughness are observed due to moisture absorption for wet wood-wood and wood-FRP samples; the toughening of the interface under moisture is due mainly to a much more plastic fracture failure mode of the interface.
Author : Sanjay Mavinkere Rangappa
Release : 2021-04-19
Genre : Technology & Engineering
Kind : eBook
Book Rating : 420/5 ( reviews)
Book Synopsis Fracture Failure Analysis of Fiber Reinforced Polymer Matrix Composites by : Sanjay Mavinkere Rangappa
Download or read book Fracture Failure Analysis of Fiber Reinforced Polymer Matrix Composites written by Sanjay Mavinkere Rangappa. This book was released on 2021-04-19. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a unified approach to fracture behavior of natural and synthetic fiber-reinforced polymer composites on the basis of fiber orientation, the addition of fillers, characterization, properties and applications. In addition, the book contains an extensive survey of recent improvements in the research and development of fracture analysis of FRP composites that are used to make higher fracture toughness composites in various applications.The FRP composites are an emerging area in polymer science with many structural applications. The rise in materials failure by fracture has forced scientists and researchers to develop new higher strength materials for obtaining higher fracture toughness. Therefore, further knowledge and insight into the different modes of fracture behavior of FRP composites are critical to expanding the range of their application.
Author : JF. Davalos
Release : 2006
Genre : Bonded interface
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Fiber-Reinforced Composite and Wood Bonded Interfaces by : JF. Davalos
Download or read book Fiber-Reinforced Composite and Wood Bonded Interfaces written by JF. Davalos. This book was released on 2006. Available in PDF, EPUB and Kindle. Book excerpt: Fiber-reinforced plastic (FRP) composites have shown the potential for reinforcement of wood structures (e.g., bonding of FRP strips or fabrics to wood members). Although significant increases in stiffness and strength are achieved by this reinforcing technique, there is a concern about the reliable performance of the FRP-wood adhesive bond, which is susceptible to delamination. The overall objective of this two-part paper is to develop a qualification program to evaluate the service performance and fracture of composite/wood bonded interfaces. Two types of FRP-wood interfaces are studied: phenolic FRP-wood and epoxy FRP-wood bonds. In the present paper, Part 1, the durability and shear strength of FRP-wood bonds are evaluated by modified ASTM tests. First, the service performance and durability of FRP-wood interface bond is evaluated using a modified ASTM delamination test. Then, the apparent shear strengths of bonded interfaces under both dry and wet conditions are obtained from modified ASTM block-shear tests. It is shown that the modified ASTM D 2559 standard test can be successfully used to study the effect of several parameters (e.g., bonding pressure, assembling time, and coupling agents) on bondline performance under wet-dry exposure cycles. Then for the best combination of parameters, the average interface shear strengths can be obtained from block-shear tests of ASTM D 905, modified for hybrid laminates. Mode I fracture of FRP-wood bonded interfaces and guidelines for FRP-wood bond performance evaluation are presented in the companion Part 2 paper.
