Volume 2, Issue 1, January 2013, Pages 34–42
Israr Ullah1 and Jyoti K. Sinha2
1 School of MACE, The University of Manchester, Sackville Street, Manchester M13 9PL, United Kingdom
2 School of MACE, The University of Manchester, Sackville Street, Manchester M13 9PL, United Kingdom
Original language: English
Copyright © 2013 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Delamination detection in the composite structure based on the vibration responses when excited at the lower modes has been suggested here. It has been observed that the nonlinear interaction between the delaminated layers produce higher harmonics of the exciting frequency. These higher harmonics have observed to be useful for the detection and location of the delamination without comparing the vibration data from the healthy state of the composite structure. The paper presents the observation based on the finite element analysis of a composite plate with and without delamination and then on the experiments on the composite plates with and without delamination.
Author Keywords: Composite structures, Finite Element Modeling, Delamination, Nonlinear interaction, Vibration response.
Israr Ullah1 and Jyoti K. Sinha2
1 School of MACE, The University of Manchester, Sackville Street, Manchester M13 9PL, United Kingdom
2 School of MACE, The University of Manchester, Sackville Street, Manchester M13 9PL, United Kingdom
Original language: English
Copyright © 2013 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Delamination detection in the composite structure based on the vibration responses when excited at the lower modes has been suggested here. It has been observed that the nonlinear interaction between the delaminated layers produce higher harmonics of the exciting frequency. These higher harmonics have observed to be useful for the detection and location of the delamination without comparing the vibration data from the healthy state of the composite structure. The paper presents the observation based on the finite element analysis of a composite plate with and without delamination and then on the experiments on the composite plates with and without delamination.
Author Keywords: Composite structures, Finite Element Modeling, Delamination, Nonlinear interaction, Vibration response.
How to Cite this Article
Israr Ullah and Jyoti K. Sinha, “A Novel Method for Delamination Detection in Composites,” International Journal of Innovation and Applied Studies, vol. 2, no. 1, pp. 34–42, January 2013.
