Evaluation of Un-Cracking Delamination by Pseudo Crack Model (PCM) in FRMLs

Abstract:

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If Fiber Reinforced Metal Laminates (FRMLs) were delaminated, the decrease of stiffness and fiber bridging effect would result in the sudden aggravation of fatigue characteristics. It was reported that the delamination of FRMLs resulted from the crack of Al alloy layers and that it depended on the crack growth. When FRMLs with circular holes was un-cracked but was delaminated, it was impossible to analyze them by conventional fracture parameters expressed as the function of cracks. Therefore, a new analytical model called Pseudo Crack Model (PCM) was suggested to compare the delaminations whether cracks were made or not. The relationship between the crack consumption rate (Ccrack) and the delamination consumption rate (Cdel) was discussed and it was also known that the effect of the Ccrack was larger than that of the Cdel.

Info:

Periodical:

Key Engineering Materials (Volumes 345-346)

Edited by:

S.W. Nam, Y.W. Chang, S.B. Lee and N.J. Kim

Pages:

689-692

DOI:

10.4028/www.scientific.net/KEM.345-346.689

Citation:

C. W. Kim et al., "Evaluation of Un-Cracking Delamination by Pseudo Crack Model (PCM) in FRMLs", Key Engineering Materials, Vols. 345-346, pp. 689-692, 2007

Online since:

August 2007

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$35.00

[1] G. Lawcock, L. Ye and Y. W. Mai: Progressive Damage and Residual Strength of a Carbon Fiber Reinforced Metal Laminates (Journal of Composite Materials, USA 1997), Vol. 31, No. 8, p.762~787.

DOI: 10.1177/002199839703100802

[2] S. W. Han and S. W. Kim: Fatigue Crack Growth Behaviors in Al-Si-Mg Sand Cast Alloys (Metals and Materials International, Korea 2004), Vol. 10, No. 1, p.13~18.

DOI: 10.1007/bf03027358

[3] R. Marrisen: Fatigue Crack Growth in ARALL-A Hybrid Aluminum Aramid Composite Material (Ph. D. Thesis, Univ. of Delft, Netherlands 1998).

[4] Y. Toi: An Experimental Crack Growth Model for Fiber/metal Laminates (18 th Symposium of ICAF, Melbourne 1995), p.899~909.

[5] S. H. Song and C. W. Kim: Fatigue Crack and Delamination Behavior in the Composite Material Containing a Saw-cut and Circular Hole (I) -Aramid Fiber Reinforced Metal Laminates- (Transaction of the KSME, A, Korea 2003), Vol. 27, No. 1, p.58.

DOI: 10.3795/ksme-a.2003.27.1.058

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