NDLI: Finite element modeling of frictionally restrained composite interfaces

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Finite element modeling of frictionally restrained composite interfaces

Content Provider	NASA Technical Reports Server (NTRS)
Author	Ahmed, Shamim Ballarini, Roberto
Copyright Year	1989
Description	The use of special interface finite elements to model frictional restraint in composite interfaces is described. These elements simulate Coulomb friction at the interface, and are incorporated into a standard finite element analysis of a two-dimensional isolated fiber pullout test. Various interfacial characteristics, such as the distribution of stresses at the interface, the extent of slip and delamination, load diffusion from fiber to matrix, and the amount of fiber extraction or depression are studied for different friction coefficients. The results are compared to those obtained analytically using a singular integral equation approach, and those obtained by assuming a constant interface shear strength. The usefulness of these elements in micromechanical modeling of fiber-reinforced composite materials is highlighted.
File Size	673657
Page Count	23
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19890014547
Archival Resource Key	ark:/13960/t6h17xb8m
Language	English
Publisher Date	1989-04-01
Access Restriction	Open
Subject Keyword	Structural Mechanics Ceramic Matrix Composites Shear Strength Fiber Composites Solid-solid Interfaces Load Distribution Forces Finite Element Method Micromechanics Coefficient of Friction Stress Distribution Interfacial Tension Reinforcing Fibers Delaminating Mathematical Models Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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