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Title: Failure of a fiber composite lamina under three-dimensional stresses

Abstract

The efficient use of thick-section fiber composites requires a proven three-dimensional failure model. Numerous failure criteria have been proposed, but the lack of critical experimental results makes it difficult to assess the accuracy of these models. It is shown that the various predictions for failure of a lamina due to the simple state of uniaxial stress plus superposed hydrostatic pressure are disparate. These differences are sufficient to allow evaluation of failure criteria using data that has the normal scatter found for composite materials. A high-pressure test system for fiber composites is described and results for the effects of pressure on the transverse and longitudinal compression strengths of a carbon fiber/epoxy lamina are discussed. Results are compared with a few representative failure models.

Authors:
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (US)
Sponsoring Org.:
USDOE Office of Defense Programs (DP) (US)
OSTI Identifier:
14554
Report Number(s):
UCRL-JC-135664
TRN: AH200129%%314
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: ASME IMECE '99, Symposium on Thick Composites for Load-Bearing Structures, Nashville, TN (US), 11/14/1999--11/19/1999; Other Information: PBD: 31 Aug 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 42 ENGINEERING; ACCURACY; CARBON; COMPOSITE MATERIALS; COMPRESSION STRENGTH; EVALUATION; FIBERS; HYDROSTATICS; STRESSES

Citation Formats

DeTeresa, S J. Failure of a fiber composite lamina under three-dimensional stresses. United States: N. p., 1999. Web.
DeTeresa, S J. Failure of a fiber composite lamina under three-dimensional stresses. United States.
DeTeresa, S J. Tue . "Failure of a fiber composite lamina under three-dimensional stresses". United States. https://www.osti.gov/servlets/purl/14554.
@article{osti_14554,
title = {Failure of a fiber composite lamina under three-dimensional stresses},
author = {DeTeresa, S J},
abstractNote = {The efficient use of thick-section fiber composites requires a proven three-dimensional failure model. Numerous failure criteria have been proposed, but the lack of critical experimental results makes it difficult to assess the accuracy of these models. It is shown that the various predictions for failure of a lamina due to the simple state of uniaxial stress plus superposed hydrostatic pressure are disparate. These differences are sufficient to allow evaluation of failure criteria using data that has the normal scatter found for composite materials. A high-pressure test system for fiber composites is described and results for the effects of pressure on the transverse and longitudinal compression strengths of a carbon fiber/epoxy lamina are discussed. Results are compared with a few representative failure models.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {8}
}

Conference:
Other availability
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