Peridynamic modeling of fatigue damage in notched composite laminates

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

1 Scopus citations

Abstract

This study presents an application of peridynamics to predict crack initiation and propagation in notched fiber reinforced composites under cyclic loading. In order to account for bending deformation, the bond-based peridynamic approach is modified based on Euler- Bernoulli beam theory. The fatigue model utilizes G-N curve and da/dN data from standard Double Cantilever Beam (DCB) and End Notched Flexture (ENF) tests. The fidelity of this model is established by simulating the DCB and ENF tests conducted by the Air Force Research Laboratory under the Tech Scout Project. As part of this project, the AFRL also tested open-hole composite laminates made of IM7/977-3 composites for three different layups under cyclic loads for strength and failure progression. The peridynamic predictions agree with the measured reduction in stiffness and strength as a function of number of load cycles. Also, the progressive damage predictions capture the general characteristics of the experimentally observed damage patterns.

Original languageEnglish (US)
Title of host publication58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2017
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624104534
DOIs
StatePublished - 2017
Event58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2017 - Grapevine, United States
Duration: Jan 9 2017Jan 13 2017

Publication series

Name58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2017

Other

Other58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2017
CountryUnited States
CityGrapevine
Period1/9/171/13/17

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials
  • Architecture

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  • Cite this

    Hu, Y., & Madenci, E. (2017). Peridynamic modeling of fatigue damage in notched composite laminates. In 58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2017 (58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2017). American Institute of Aeronautics and Astronautics Inc, AIAA. https://doi.org/10.2514/6.2017-1140