The nonlinear response of laminated, resin matrix fibrous composites is modeled using orthotropic endochronic theory. The theory is formulated in terms of elastic constants and endochronic parameters characterizing the linear and nonlinear response, respectively, of unidirectional composites. All constants and parameters can be determined from normal (tension and/or compression) and shear tests on unidirectional and off-axis specimens. The nonlinear constitutive response relations for the unidirectional lamina are presented and the procedure for determining constants and parameters from test is described. The results are then used to predict the nonlinear response of unidirectional laminae and angle-ply laminates. Comparison between theory and experiment for compression loading of AS4/3502 graphite-epoxy, angle-ply laminates shows excellent correlation.
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October 1991
Research Papers
Nonlinear Response of Resin Matrix Laminates Using Endochronic Theory
S. R. Mathison,
S. R. Mathison
Honda Motor Company, Ltd., Tokyo, Japan
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M. J. Pindera,
M. J. Pindera
University of Virginia, Charlottesville, VA
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C. T. Herakovich
C. T. Herakovich
University of Virginia, Charlottesville, VA
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S. R. Mathison
Honda Motor Company, Ltd., Tokyo, Japan
M. J. Pindera
University of Virginia, Charlottesville, VA
C. T. Herakovich
University of Virginia, Charlottesville, VA
J. Eng. Mater. Technol. Oct 1991, 113(4): 449-455 (7 pages)
Published Online: October 1, 1991
Article history
Received:
November 20, 1990
Online:
April 29, 2008
Citation
Mathison, S. R., Pindera, M. J., and Herakovich, C. T. (October 1, 1991). "Nonlinear Response of Resin Matrix Laminates Using Endochronic Theory." ASME. J. Eng. Mater. Technol. October 1991; 113(4): 449–455. https://doi.org/10.1115/1.2904125
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