Nonlinear laminate analysis for metal matrix fiber compositesA nonlinear laminate analysis is described for predicting the mechanical behavior (stress-strain relationships) of angle-ply laminates in which the matrix is strained nonlinearly by both the residual stress and the mechanical load and in which additional nonlinearities are induced due to progressive fiber fractures and ply relative rotations. The nonlinear laminate analysis is based on linear composite mechanics and a piece-wise linear laminate analysis to handle the nonlinear responses. Results obtained by using this nonlinear analysis on boron-fiber/aluminum-matrix angle-ply laminates agree well with experimental data. The results shown illustrate the in situ ply stress-strain behavior and synergistic strength enhancement.
Document ID
19810045007
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Chamis, C. C. (NASA Lewis Research Center Cleveland, OH, United States)
Sinclair, J. H. (NASA Lewis Research Center Structures and Mechanical Technologies Div., Cleveland, Ohio, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1981
Subject Category
Composite Materials
Report/Patent Number
AIAA PAPER 81-0579
Meeting Information
Meeting: Conference on Structures, Structural Dynamics and Materials