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.

PDF int_jou_mec_157_184_2019.pdf - Published Version Restricted to Registered users only Download (3MB) | Request a copy

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
Publication:	INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
Publisher:	PERGAMON-ELSEVIER SCIENCE LTD
Additional Information:	copyright for this article belongs to PERGAMON-ELSEVIER SCIENCE LTD
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	26 Aug 2019 07:03
Last Modified:	26 Aug 2019 07:03
URI:	http://eprints.iisc.ac.in/id/eprint/63259

Actions (login required)

View Item