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Bridging micro-to-macro scale damage in UD-FRP laminates under tensile loading

Parambil, Nithin K and Gururaja, Suhasini (2019) Bridging micro-to-macro scale damage in UD-FRP laminates under tensile loading. In: INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 157 . pp. 184-197.

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Official URL: https://dx.doi.org/10.1016/j.ijmecsci.2019.03.039

Abstract

A unified numerical framework for progressive damage analysis of a unidirectional fiber reinforced plastic (UD-FRP) laminate has been developed by explicitly accounting for damage progression at the micro-level. At the micro-level, a three dimensional repeating unit cell (3D-RUC) comprised of polymer matrix with fibers and interfaces has been modeled allowing for plasticity based matrix damage, maximum stress based fiber failure, and a cohesive traction-separation criterion for interface failure. Coupling of macro- and micro-levels has been accomplished using non-linear homogenization. In other words, the homogenized stress-strain curve obtained at the micro-level is utilized to predict the constitutive behavior at the macro-level. Typical material characterization tests have been conducted to estimate constituent behavior. Predictions from the current analysis are found to match well with the response of UD-FRP plates of different fiber orientations with a central hole under tensile loading.

Item Type: Journal Article
Additional Information: copyright for this article belongs to PERGAMON-ELSEVIER SCIENCE LTD
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Depositing User: Id for Latest eprints
Date Deposited: 26 Aug 2019 07:03
Last Modified: 26 Aug 2019 07:03
URI: http://eprints.iisc.ac.in/id/eprint/63259

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