The Effect of Hygrothermal Composite Patch on the Fracture of Reinforced Crack under Mixed-Mode Loading-Reference-Cited by-同舟云学术

The Effect of Hygrothermal Composite Patch on the Fracture of Reinforced Crack under Mixed-Mode Loading

Published:2006-10 Issue: Volume:5-6 Page:189-196
ISSN:1662-7482
Container-title:Applied Mechanics and Materials
language:
Short-container-title:AMM

Author:

Hashemi R.¹,Ayatollahi Majid R.¹

Affiliation:

1. Iran University of Science and Technology

Abstract

The mechanical properties of composite laminates play a key role in the success of composite reinforcement method, but various investigations suggest that the stiffness of epoxybased composites is sensitive to the variation of moisture ratio and temperature of the working environment. The aim in this research is to characterize the effect of hygrothermal aged composite patch on the strength of repaired cracks, under mixed mode I/II conditions. For this purpose a reinforced sheet, i.e. a crack fastener hole specimen is examined by using a finite element simulation. The crack tip parameters and fracture characteristics of repaired cracks are determined as a function of the total amount of moisture inside the composite patch. The results of this study show that the performance of composite reinforcement technique depends on the amount of water absorption within the bonded patches.

Publisher

Trans Tech Publications, Ltd.

Link

https://www.scientific.net/AMM.5-6.189.pdf

Reference25 articles.

1. A.A. Baker, R.J. Callinan, M.J. Davis, R. Jones and J.G. Williams: Theor Appl Fracture Mech, Vol. 2 (1984), 1-16.

2. A.A. Baker: Compos Struct, Vol. 74 (1999), 431-443.

3. R. Jones, L. Molent, J. Paul, T. Saunders and W.K. Chiu WK: NASA CP 3274, 1994. p.339350.

4. J.M. Gaillardon, H.J. Schmidt and B. Brandecker: NASA CP 3160, 1991. pp.283-289.

5. A. Moropoulou, N. Kouloumbi, Z.P. Marioli-Riga, N.P. Avdelidis and P. Pantazopoulou: in Proceedings of Electrically Based Microstructural Characterization III Symposium, Boston, MA, Materials Research Society Press, 2002. pp.39-44.