Inverse analysis of constitutive relation for epoxy resin materials

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

2 Citations (Scopus)

Abstract

A multilinear parametric uniaxial stress strain approach has been used to obtain the closed form nonlinear load deflection response based on strain compatibility in bending for epoxy resin materials. A constitutive model for tension and compression of resin polymeric material is proposed. The model consists of a bilinear ascending curve followed by strain softening and constant plastic flow in tension and compression. The model is described by two main parameters; modulus of elasticity in tension and strain at the proportional elastic limit point in tension, in addition to twelve non-dimensional tension and compression parameters. Moment curvature equations, deformation localization, and static equilibrium conditions were used to simulate the flexural load deflection response of a beam under three-point bending and four-point bending conditions. Results show a considerable underestimation in flexural load carrying capacity if the uniaxial tension and compression stress strain curves are directly used.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
DOIs
StatePublished - 2011
Event52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference - Denver, CO, United States
Duration: Apr 4 2011Apr 7 2011

Other

Other52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
CountryUnited States
CityDenver, CO
Period4/4/114/7/11

Fingerprint

Epoxy Resins
Epoxy resins
Load limits
Stress-strain curves
Constitutive models
Plastic flow
Loads (forces)
Compaction
Resins
Elastic moduli
Polymers

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Materials Science(all)
  • Aerospace Engineering
  • Architecture

Cite this

Yekani Fard, M., Liu, Y., & Chattopadhyay, A. (2011). Inverse analysis of constitutive relation for epoxy resin materials. In Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference [AIAA 2011-1746] https://doi.org/10.2514/6.2011-1746

Inverse analysis of constitutive relation for epoxy resin materials. / Yekani Fard, Masoud; Liu, Yingtao; Chattopadhyay, Aditi.

Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. 2011. AIAA 2011-1746.

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

Yekani Fard, M, Liu, Y & Chattopadhyay, A 2011, Inverse analysis of constitutive relation for epoxy resin materials. in Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference., AIAA 2011-1746, 52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Denver, CO, United States, 4/4/11. https://doi.org/10.2514/6.2011-1746
Yekani Fard M, Liu Y, Chattopadhyay A. Inverse analysis of constitutive relation for epoxy resin materials. In Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. 2011. AIAA 2011-1746 https://doi.org/10.2514/6.2011-1746
Yekani Fard, Masoud ; Liu, Yingtao ; Chattopadhyay, Aditi. / Inverse analysis of constitutive relation for epoxy resin materials. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. 2011.
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