Damage Monitoring of Composite Materials Using Pulsed Phase Thermography and Thermoelastic Stress Analysis


Article Preview

The current paper presents a new combined technique for damage detection, localisation and establishing damage severity. The technique is based on the use of two infrared detection approaches: Pulsed Phase Thermography (PPT) and Thermoelastic Stress Analysis (TSA). A methodology is described that allows the technique to be applied to fibre reinforced composites. The usefulness of the technique is demonstrated on delaminated glass epoxy laminates. A means of developing controlled delamination damage in such specimens is developed so that real sub surface damage is evaluated in the paper.



Edited by:

L. Garibaldi, C. Surace, K. Holford and W.M. Ostachowicz




T.R. Emery and J. M. Dulieu-Barton, "Damage Monitoring of Composite Materials Using Pulsed Phase Thermography and Thermoelastic Stress Analysis", Key Engineering Materials, Vol. 347, pp. 621-626, 2007

Online since:

September 2007




[1] T.K. O'Brien: in Damage in Composite Materials, edited by K. Reifsnider American Society for Testing and Materials, Philadelphia (1982).

[2] T.K. O'Brien: in Composite Materials: Testing and Design: 9th Volume, edited by S.P. Garbo American Society for Testing and Materials: Philadelphia. (1990).

[3] N.J. Pagan and G. A Schoeppner: in Comprehensive Composite Materials, edited by A. Kelly and C. Zweben, Pergamon Vol. 2 (2000).

[4] N.J. Pagano and R. B Pipes: J Comp Mater. Vol. 5 (1971), pp.50-57.

[5] X. Maldague and S. Marinetti: J Appl Phys. Vol. 79 (1996), pp.2694-2698.

[6] J. M Dulieu-Barton, and P. Stanley: J Strain Anal Eng. Vol. 33 (1998), pp.93-104.

[7] P. Stanley and W.K. Chan: J Strain Anal Eng. Vol. 23 (1988), pp.137-142.

[8] J.M. Dulieu-Barton, T.R. Emery, S. Quinn, and P. R: Cunningham: Meas Sci and Technol. Vol. 17 (2006), pp.1627-1637.

[9] T.R. Emery, J.M. Dulieu-Barton, J. Earl and P.R. Cunningham: A generalised approach to the calibration of orthotropic materials for thermoelastic stress analysis. In preparation.

DOI: https://doi.org/10.1016/j.compscitech.2007.09.002

[10] P.R. Cunningham, J. M Dulieu-Barton, and R.A. Shenoi: Damage location and identification using infra-red thermography and thermoelastic stress analysis. (Proceedings of SPIE 2002).

[11] M. Datoo, in: Mechanics of Fibrous Composites, Elsevier Applied Science, UK (1991).

[12] R.C. Drew, and R.G. White: An investigation into damage propagation and its effect upon dynamic properties of CFRP composite materials. (Proceedings of the Fourth International Conference on Composite Structures 1987).

DOI: https://doi.org/10.1007/978-94-009-3457-3_4

[13] S. Marinetti, Y.A. Plotnikov, W.P. Winfree and A. Braggiotti. Pulse phase thermography for defect detection and visualization. (Nondestructive Evaluation of Aging Aircraft, Airports, and Aerospace Hardware III, SPIE 1999).

DOI: https://doi.org/10.1117/12.339890

[14] T. Emery, J.M. Dulieu-Barton and P.R. Cunningham: Key Eng Mat. Vol. 293-294 (2005), pp.583-590.