Evaluation of Interlaminar Damage and Crack Propagation through Digital Image Correlation Method

Abstract:

Article Preview

Interface damage characterization and interlaminar failure of sandwich specimens with two initial interlaminar defects (inserts) is done by using the digital image correlation method. Mode I tests reveal interesting particularities on damage localization and unstable crack propagation. After analyzing the experimentally obtained results, we propose as a failure parameter the local strain at the crack tip or, alternatively, the crack tip opening displacement which quantifies the non-linear phenomena.

Info:

Periodical:

Edited by:

Liviu MARSAVINA

Pages:

105-112

Citation:

D. M. Constantinescu et al., "Evaluation of Interlaminar Damage and Crack Propagation through Digital Image Correlation Method", Key Engineering Materials, Vol. 399, pp. 105-112, 2009

Online since:

October 2008

Export:

Price:

$41.00

[1] Mechanical testing of advanced fibre composites, edited by Hodginson J.M., CRC Press (2000).

[2] ASTM D 5528 - 94a, Standard test method for mode I interlaminar fracture toughness of unidirectional fibre-reinforced polymer matrix composites, Annual Book of ASTM Standards, 100 Barr Harbor Drive, West Conshohocken, PA 19428, USA, Vol. 15. 03 (2001).

DOI: https://doi.org/10.1520/d6671-01

[3] T.K. O'Brien: Composites-Part B, Vol. 29, pp.57-62 (1998).

[4] Fracture Mechanics Testing Methods for Polymers, Adhesives and Composites, edited by D.R. Moore, A. Pavan, and J.G. Williams, ESIS Publication 28, Elsevier (2001).

[5] P. Robinson and D.Q. Song: Journal of Composite Materials, Vol. 26, pp.1554-1577 (1992).

[6] D.M. Constantinescu, N. Constantin and T. Goss, in: Proceedings of the 20th Danubia-Adria Symposium on Experimental Methods in Solid Mechanics, September 24-27, Györ, Scientific Society of Mechanical Engineering, ISBN 963 9058 20 3, Hungary, pp.82-83 (2003).

[7] D.M. Constantinescu, N. Constantin and T. Goss: The Archive of Mechanical Engineering, Vol. LI (4), pp.565-580 (2004).

[8] D.M. Constantinescu, M. Sandu, L. Marsavina., Elvira Alexandrescu., A. Haja, M. Stere , R. Negru., D. Apostol. and M. Miron, in: CEEX 2007 Conference Excellence Research - A Way to E.R.A. - edited by N. Vasiliu and L. Szabolcs, pp.202-6, ISSN 1843-5904 (2007).

[9] Information on http: /www. gom. com.

[10] D.M. Constantinescu, D. Apostol and M. Miron, in: The 13th International Conference of Fracture Mechanics, November 1-3, Bacau, MOCM 13, Volume 4 - Romanian Technical Sciences Academy, pp.53-56, ISSN 1224-7480 (2007).

[11] M. Miron, Evaluation of interface properties and damage characterization of layered and sandwich composites, Diploma of Engineer Thesis, University POLITEHNICA of Bucharest (2008).