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http://dx.doi.org/10.5139/JKSAS.2013.41.12.967

Fatigue Strength of Composite Joint Structures Reinforced by Jagged Shaped Stainless Steel Z-pins  

Choi, Ik-Hyeon (Advanced Materials & Structures Research Team of Korea Aerospace Research institute)
Lim, Cheol-Ho (Vice President of Korea Aerospace Research institute)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.41, no.12, 2013 , pp. 967-974 More about this Journal
Abstract
Recently the authors had proposed the z-pinning patch concept to simply manufacture z-pinned composite structures at industrial production site and manufactured composite single-lap shear joint specimens using the concept. Through static tensile test on the specimens they had obtained 54~68% improvement of the joint strength. As a sequential study of it, in this study, fatigue test has performed to measure an improvement of joint strength under cyclic loading. The z-pin's material is stainless steel and its surface was specially machined into zagged shapes and chemically corroded to increase the connection force with composite materials. Approximately 98~125% improvement of the joint strength under cyclic loading was obtained.
Keywords
Composite; Z-pinning Patch; Singl-Lap Shear Joint; Zagged Shape; Fatigue Strength;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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