Analytical and statistical approaches to flexural behavior for epoxy resin materials

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

Abstract

A piecewise-linear parametric uniaxial stress strain approach has been used to obtain the nonlinear moment curvature curve and load deflection response based on strain compatibility in bending for epoxy resin materials. It has been shown that the direct use of tension and compression stress strain models underestimates the flexural strength of epoxy resin materials in three point bending and round plate setup. The Weibull parameters were estimated using linear regression method. Fifty-two smallsized three point bending samples with grooves in the middle of epoxy resin Epon E863 were tested at room temperature. The accurate flexural over-strength factor obtained from the analytical simulation is less than the estimation predicted by the two-parameter Weibull model.

Original languageEnglish (US)
Title of host publication53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference 2012
StatePublished - Dec 1 2012
Event53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference 2012 - Honolulu, HI, United States
Duration: Apr 23 2012Apr 26 2012

Publication series

Name53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference 2012

Other

Other53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference 2012
CountryUnited States
CityHonolulu, HI
Period4/23/124/26/12

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ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanical Engineering
  • Materials Science(all)
  • Surfaces and Interfaces

Cite this

Yekani Fard, M., Chattopadhyay, A., & Liu, Y. (2012). Analytical and statistical approaches to flexural behavior for epoxy resin materials. In 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference 2012 (53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference 2012).