Multi-scale analysis of a 2/2-twill woven fabric composite
Loading...
Authors
Roach, Kevin K.
Subjects
Advisors
Kwon, Young W.
Date of Issue
2002-03
Date
Publisher
Monterey, California. Naval Postgraduate School
Language
Abstract
A micro-mechanical unit-cell model was developed for 2/2-twill woven fabric composites. A multi-scale bi-directional micro/macro-mechanical analysis technique was applied to the model in an effort to estimate effective material properties of 2/2-twill composites and decompose the effective stresses (strains) of the woven fabric composite into the stresses (strains) of the tows. When this unit-cell model is incorporated into the multiscale analysis by combining with previously developed modules, the residual strength and stiffness of a laminated structure made of 2/2-twill woven fabric composites can be predicted along with damage progression in the structure. Damage is described at the basic material units of the composite structure, the fibers and matrix. The unit-cell model and the multi-scale analysis were validated by comparing their predicted results to available data in open literature and data obtained from a finite element models.
Type
Thesis
Description
Series/Report No
Department
Organization
Identifiers
NPS Report Number
Sponsors
Funding
Format
xiv, 40 p. : ill. (some col.) ;
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.