A numerical methodology for monitoring stress distributions and experimental proof of the concept on metal embedded thin polymer-matrix composites using x-ray diffraction

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Demir, Eralp and Şaş Çaycı, Hatice Sinem and Işık, Murat and Gungor, Eda Aydogan and Davut, Kemal (2022) A numerical methodology for monitoring stress distributions and experimental proof of the concept on metal embedded thin polymer-matrix composites using x-ray diffraction. Thin-Walled Structures, 173 . ISSN 0263-8231 (Print) 1879-3223 (Online)

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Abstract

In this study, a numerical methodology is developed to monitor stress distributions and an experimental technique is investigated to measure stresses on metal embedded polymer matrix fiber-reinforced composite materials using X-ray diffraction (XRD) method. The numerical method successfully predicts the stress distributions using only a few data points with an average accuracies of 11.6% and 11.8%, respectively for tapered and open hole tensile sample geometries. Experimental part of this study investigates different methodologies to measure stresses on surfaces of polymer composites materials of thin walled structures by XRD. For this reason, metallic materials were integrated onto the surface and near-surface of polymer matrix composites in three different configurations as in the forms of metal foil, metal powder, and metal wire mesh. In-situ experiments of measured and applied stresses revealed metal powder embedded composite materials as a promising material configuration for reliable monitoring of stresses.
Item Type: Article
Uncontrolled Keywords: Least-squares FEM; Meshless interpolation; Plane stress; Polymer-matrix composites; Residual stresses; XRD
Divisions: Faculty of Engineering and Natural Sciences
Integrated Manufacturing Technologies Research and Application Center
Depositing User: Hatice Sinem Şaş Çaycı
Date Deposited: 25 Aug 2022 15:38
Last Modified: 25 Aug 2022 15:38
URI: https://research.sabanciuniv.edu/id/eprint/43995

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