Interfacial debonding and fiber pull-out stresses of fiber-reinforced composites, X: with an elastic interfacial coating
Journal
Materials Science and Engineering A
Journal Volume
165
Journal Issue
2
Pages
189-195
Date Issued
1993
Author(s)
Abstract
Pull-out of a fiber with an elastic interfacial coating, which has been used to facilitate interfacial debonding for ceramic composites, from a matrix is considered. The effects of the interfacial coating on the stress transfer, and the interfacial shear stresses at both the fiber-coating and the coating-matrix interfaces are analyzed. The stress transfer by interfacial stress depends on both the effectiveness of the stress transfer and the loading stress carried by the coating. This loading stress decreases with decreasing Young's modulus of the coating when a constant load is applied on the fiber-coating system. Hence, depending on the balance between the above two factors, a moderately soft coating is required to maximize the interfacial shear which, in turn, promotes interfacial debonding. The effects of coating thickness on stress transfer are also addressed. ? 1993.
Type
journal article