Analysis of Complex Stress Intensities for Cracked Laminates

Hu Hurang; Wu Chengping

Volume 17 Issue 2

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Article Navigation > Applied Mathematics and Mechanics > 1996 > 17(2): 115-126

Hu Hurang, Wu Chengping. Analysis of Complex Stress Intensities for Cracked Laminates[J]. Applied Mathematics and Mechanics, 1996, 17(2): 115-126.

Citation:

Hu Hurang, Wu Chengping. Analysis of Complex Stress Intensities for Cracked Laminates[J]. Applied Mathematics and Mechanics, 1996, 17(2): 115-126.

Citation:

Hu Hurang, Wu Chengping. Analysis of Complex Stress Intensities for Cracked Laminates[J]. Applied Mathematics and Mechanics, 1996, 17(2): 115-126.

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Analysis of Complex Stress Intensities for Cracked Laminates

Hu Hurang¹,
Wu Chengping²

1.
Department of Mechanical, Aerospace and Manufacturing Ellgineering, Syracuse Universit, Syracuse, NY 13244, USA;
2.
Chongqing Jlaotong institute, Chongqing 630074, P. R. China

Received Date: 1994-11-25
Publish Date: 1996-02-15

Abstract

Abstract

Classical plate theory has been used to find out interfacial stress intensity factors in composite laminates. By using a well-known relation between the crack-tip energy release rate and the complex stress intensity factor. a closed-form solution for complex. Stress intensity in terms of external loading and a mode mix parameter for fairly. general composite laminates is given. Then a procedure for determining this mode mix. parameter is presented. followed by numerical results for some laminates. Small scale contact condition is expressed in terms of external loading In particular, a symmetric property of interfacial toughness curye is proven. Finally. the accuracy of failure load predicled by elininating oscllation index is discussed. and an example is presented to show the validity and limitation of β=1 approximation.
- composite materials,
- laminates,
- complex stress intensity factor.energy release rate,
- inlerface Crack,

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References(22)

References

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