An improved shear-lag analysis for evaluating interfacial mechanical property

Souta Kimura, Jun Koyanagi, Takayuki Hama, Hiroyuki Kawada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A shear-lag model is developed to predict the stress distributions in and around an isolated fibre in a single-fibre polymer matrix composite (PMC) subjected to uniaxial tensile loading and unloading along the fibre direction. The matrix is assumed to be an elasto-plastic material that deforms according to J2 flow theory. The stress distributions are obtained numerically and compared with a different shear-lag model that employs total strain theory as a constitutive equation of the matrix material. An effect of the difference between the models on the derived stress state is discussed. Axisymmetric FEM is also conducted to validate the stress states obtained from the present analysis. It proves to be in good agreement with the FEM, which illustrates the importance of application of the incremental analysis.

Original languageEnglish
Title of host publicationProceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007
Pages1499-1504
Number of pages6
Publication statusPublished - 2007 Nov 19
EventSEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007 - Springfield, MA, United States
Duration: 2007 Jun 32007 Jun 6

Publication series

NameProceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007
Volume3

Conference

ConferenceSEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007
CountryUnited States
CitySpringfield, MA
Period07/6/307/6/6

ASJC Scopus subject areas

  • Mechanical Engineering

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  • Cite this

    Kimura, S., Koyanagi, J., Hama, T., & Kawada, H. (2007). An improved shear-lag analysis for evaluating interfacial mechanical property. In Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007 (pp. 1499-1504). (Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007; Vol. 3).