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TECHNICAL PAPERS

The Effects of Patch Properties on the Debonding Behavior of Patched Beam-Plates

[+] Author and Article Information
A. M. Karlsson

Princeton Materials Institute, Princeton University, Princeton, NJ 08540-5211

J. Eng. Mater. Technol 122(4), 389-393 (Apr 13, 2000) (5 pages) doi:10.1115/1.1288926 History: Received January 24, 2000; Revised April 13, 2000
Copyright © 2000 by ASME
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References

Baker,  A. A., 1993, “Repair Efficiency in Fatigue-Cracked Aluminum Components Reinforced With Boron/Epoxy Patches,” Fatigue Fract. Eng. Mater. Struct., 66, No. 7, pp. 753–765.
Chiu,  W. K., Rees,  D., Chalkey,  P., and Jones,  R., 1994, “Designing for Damage-Tolerant Composite Repairs,” Comp. Struct., 28, pp. 19–37.
Chue,  C.-H., Chang,  L.-C., and Tsai,  J.-S., 1994, “Bonded Repair of Plate With Inclined Central Crack Under Biaxial Loading,” Comp. Struct., 28, pp. 39–45.
Park,  J. H., Ogiso,  T., and Atluri,  S. N., 1992, “Analysis of Cracks in Aging Aircraft Structures, With and Without Composite-Patch Repairs,” Comp. Mech., 10, No. 10, pp. 169–201.
Paul,  J., and Jones,  R., 1992, “Repair of Impact Damaged Composites,” Eng. Fract. Mech., 41, No. 1, pp. 127–141.
Roderick, G. L., 1980, “Prediction of Cyclic Growth of Cracks and Debonds on Aluminum Sheets Reinforced With Boron/Epoxy,” Fibrous Composites in Structural Design, E. M. Lenoe, D. W. Oplinger, J. J. Burke, eds., Plenum Press, New York, pp. 467–481.
Sih,  G. C., and Hong,  T. B., 1989, “Integrity of Edge-Debonded Patch on Cracked Panel,” Theor. Appl. Fract. Mech., 12, pp. 121–143.
Tarn,  J.-Q., and Shek,  K.-L., 1991, “Analysis of Cracked Plates With a Bonded Patch,” Eng. Fract. Mech., 40, No. 6, pp. 1055–1065.
Karlsson,  A. M., and Bottega,  W. J., 2000, “On the Behavior of a Class of Patched Plates During Cooling,” Int. J. Non-Linear Mech., 35, No. 3, pp. 353–566.
Karlsson,  A. M., and Bottega,  W. J., 2000, “On Thermal Buckling of Patched Beam-Plates,” Int. J. Solids Struct., 37, No. 34, pp. 4655–4690.
Karlsson,  A. M., and Bottega,  W. J., 2000, “On the Thermo-Mechanical Response of Patched Plates,” AIAA J., 38, No. 6, pp. 1055–1062.
Bottega,  W. J., 1995, “Separation Failure In a Class of Bonded Plates,” Compos. Struct., 30, No. 3, pp. 253–269.
Bottega,  W. J., and Karlsson,  A. M., 1999, “On the Detachment of Step-Tapered Doublers: Part 1-Foundations,” Int. J. Solids Struct., 36, No. 11, pp. 1597–1623.
Karlsson,  A. M., and Bottega,  W. J., 1999, “The Presence on Edge Contact and its Influence on the Debonding of Patched Panels,” Int. J. Fract., 96, No. 4, pp. 383–406.
Karlsson,  A. M., and Bottega,  W. J., 1996, “On the Detachment of Step-Tapered Doublers: Part 2-Evolution of Pressure Loaded Structures,” Int. J. Solids Struct., 36, No. 11, pp. 1626–1651.
Loia,  M. A., and Bottega,  W. J., 1995, “On Planar-Tensile Representation of Edge Debonding in Patched Panels Under Pressure,” Int. J. Solids Struct., 15, No. 4, pp. 211–217.
Hutchinson,  J. W., and Suo,  S., 1992, “Mixed Mode Cracking in Layered Materials,” Adv. Appl. Mech., 29, pp. 63–191.

Figures

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Geometry of step tapered patch on base structure
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Structure loaded with (a) applied in-plane tension, (b) applied transverse pressure
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Critical normalized tensile force, T*, as a function of the normalized conjugate bond zone a* for tensile loaded structure with hinged edges. (a) Aluminum patch, (b) composite patch.
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Critical normalized transverse pressure, p*, as a function of the normalized conjugate bond zone a* for pressure loaded structure with hinged-free edges. (a) Aluminum patch, (b) composite patch.
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Critical normalized transverse pressure, p*, as a function of the normalized conjugate bond zone a* for pressure loaded structure with clamped-fixed edges. (a) Aluminum patch, (b) composite patch: various lay-up sequences, (c) composite patch: various taper angles.

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