A 3D micromechanics model for strain rate dependent inelastic polymer matrix composites

Linfa Zhu, Aditi Chattopadhyay, Robert K. Goldberg

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

7 Scopus citations

Abstract

A 3D incremental sectional micromechanics model is developed for strain rate dependent inelastic polymer matrix composite materials. A repeating unit cell is identified within the material system, which is then divided into several subcells. Uniform stress and uniform strain assumptions are applied in each subcell. Appropriate stress and strain continuity assumptions are made between subcells. A two-level approach is developed for solving the system of equations of the micromechanics model in order to improve the computational efficiency. The developed micromechanics model is implemented into a commercial finite element analysis package. The results show that the current 3D micromechanics model can address the rate dependent inelastic behavior of polymer composite materials accurately and efficiently. Numerical results are also presented to demonstrate the applicability of the micromechanics theory in modeling high velocity impact of composite laminates. Good correlation is observed with experimental observation.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Subtitle of host publication14th AIAA/ASME/AHS Adaptive Structures Conference, 8th AIAA Non-deterministic App
Pages1147-1164
Number of pages18
StatePublished - Dec 1 2006
Event47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference - Newport, RI, United States
Duration: May 1 2006May 4 2006

Publication series

NameCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Volume2
ISSN (Print)0273-4508

Other

Other47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
CountryUnited States
CityNewport, RI
Period5/1/065/4/06

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ASJC Scopus subject areas

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

Cite this

Zhu, L., Chattopadhyay, A., & Goldberg, R. K. (2006). A 3D micromechanics model for strain rate dependent inelastic polymer matrix composites. In Collection of Technical Papers - 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference: 14th AIAA/ASME/AHS Adaptive Structures Conference, 8th AIAA Non-deterministic App (pp. 1147-1164). (Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference; Vol. 2).