A new crack arrester was proposed, in which a different material with higher stiffness is installed on the crack propagation path. The effect of this crack arrester was experimentally evaluated for interfacial crack propagation between a carbon fiber reinforced plastic surface skin and a foam core. The experimental results indicated that the crack arrester increased the critical load of the crack growth, and approximately five times larger apparent fracture toughness was obtained near the leading edge of the arrester by considering the energy release rate. It was also confirmed that the fabrication of the crack arrester had no detrimental effect on the intrinsic properties of the sandwich panel structures.
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7.
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12.
Wonderly, C. and Grenestedt, J.L. (2003). Dynamic Performance of a Peel Stopper for Composite Sandwich Ship Structures, J. Compos. Mater., 38: 805-831.
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Jakobsen, J. , Bozhevolnaya, E. and Thomsen, O.T. (2007). New Peel Stopper Concept for Sandwich Structures, Compos. Sci. Technol., 67: 3378-3385.
14.
Jakobsen, J., Bozhevolnaya, E. and Thomsen, O.T. ( 2007). New Crack Arrester Concept for Sandwich Structures, In: Proceedings of the 16th International Conference on Composite Materials, Kyoto, Japan, Vol. 1, Issue 1, pp. 100-101.
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Jakobsen, J., Andreasen, J.H., Thomsen, O.T. and Bozhevolnaya, E. ( 2008). Fatigue Mechanics Modeling and Experimental Measurement of Crack Kinking at Sandwich Core-core Interfaces, In: Proceedings of the 8th International Conference on Sandwich Structures, Porto, Portugal.
16.
Hirose, Y., Hojo, M., Fujiyoshi, A. and Matsubara, G. ( 2005). Suppression of Interfacial Crack for Foam Core Sandwich Panel with New Crack Arrester, In: Proceedings of the 9th Japan International SAMPE Symposium & Exhibition, Tokyo, Japan.
17.
Hirose, Y., Hojo, M., Fujiyoshi, A. and Matsubara, G. ( 2007). Suppression of Interfacial Crack for Foam Core Sandwich Panel with Crack Arrester, Adv. Compos. Mater., 16(1): 11-30.
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19.
JIS K 7086, Testing Methods for Interlaminar Fracture Toughness of Carbon Fiber Reinforced Plastics.
20.
Matsuda, S. , Hojo, M., Ochiai, S., Moriya, K. and Aoyama, H. (1999). Mode I Interlaminar Fracture Under Static and Fatigue Loading of Alumina Fiber/Epoxy Laminates in Liquid Nitrogen, JSMEInt. J, Ser. A, 65(640): 27-33.
