An analysis of delamination in angle-ply fiber reinforced compositesAn analytical investigation of the mechanics and failure modes of delamination initiated from a service-induced surface flaw in angle-ply fiber reinforced composites is presented. The analysis employs a hybrid-stress finite element method including a crack-tip singular element with its field variables expressed by Muskhelishvili's complex stress functions. Solutions are obtained for delaminated composites with various laminate parameters. The results elucidate unique and important characteristics of delamination crack-tip response and interlaminar stress transfer mechanisms. Of particular interest are the mixed-mode stress intensity factors associated with the delamination crack. The influence of ply orientation on KI and KII and their effects on subsequent crack extension are discussed.
Document ID
19790035709
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Wang, S. S. (Illinois, University Urbana, Ill., United States)
Date Acquired
August 9, 2013
Publication Date
December 1, 1978
Subject Category
Structural Mechanics
Report/Patent Number
ASME PAPER 78-WA/AERO-8
Meeting Information
Meeting: American Society of Mechanical Engineers, Winter Annual Meeting
Location: San Francisco, CA
Start Date: December 10, 1978
End Date: December 15, 1978
Sponsors: American Society of Mechanical Engineers