Proposal of Pseudo Crack Model for the Un-Cracking Delamination Behavior of Fiber Reinforced Metal Laminates

Cheol Woong Kim; Sam Hong Song; Dong Joon Oh

doi:10.4028/www.scientific.net/MSF.475-479.941

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HomeMaterials Science ForumMaterials Science Forum Vols. 475-479Proposal of Pseudo Crack Model for the Un-Cracking...

Proposal of Pseudo Crack Model for the Un-Cracking Delamination Behavior of Fiber Reinforced Metal Laminates

Abstract:

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.

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Periodical:

Materials Science Forum (Volumes 475-479)

Pages:

941-944

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.475-479.941

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Online since:

January 2005

Authors:

Cheol Woong Kim, Sam Hong Song, Dong Joon Oh

Keywords:

Crack Consumption Rate (C_crack), Cracking Delamination, Delamination Consumption Rate (C_del), Fiber Reinforced Metal Laminates FRMLs, Pseudo Crack Model, Un-Cracking Delamination

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References

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