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http://dx.doi.org/10.7234/kscm.2010.23.6.026

An Experimental Study on Fatigue Durability for Composite Torque Link of Helicopter Landing Gear  

Kwon, Jung-Ho (울산대학교 항공우주공학과)
Kang, Dae-Hwan (울산대학교 항공우주공학전공 대학원)
Publication Information
Composites Research / v.23, no.6, 2010 , pp. 26-31 More about this Journal
Abstract
This research work contributes to a study for the procedure and methodology to assess the fatigue durability for a composite torque link for helicopter landing gear, which was newly developed and fabricated by the resin transfer moulding technique to interchange with metal component. The simulated load spectrum anticipated to be applied to the torque link during its operation life was generated using an advanced method of probabilistic random process, and the fatigue durability was evaluated by the residual strength degradation approach on the basis of material test data. The full scale fatigue test was performed and compared with the analysis results.
Keywords
residual strength degradation; failure probability; simulated load spectrum; probabilistic random process;
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  • Reference
1 Weibull W. and Weibull G. W., "New Aspects and Metbods of Statistical Analysis of Test Data with Special Reference to the Normal, and the Non-normal Weibull Distributions," FOA Report D 20045-DB, Stockholm: Defense Research Institute, 1977, pp. 2-12.
2 한국기계연구원 부설 재료연구소, 한국항공우주연구원 민군겸용기술개발사업 위탁연구 1차년도 보고서, 2007.
3 주선영, 권정호, "강도저하모델을 이용한 복합재 토크링크 피로수명 예측," 한국항공우주학회 2008년도 추계학술발표회 논문집(I), pp. 343-347 .
4 Bassa S. S., Sheth N. J. and Swanson S. R., "Development random load life prediction model," Material Research and Standards, 12, Mar., 1973.
5 Thuis, H. G. S. J., "Development of a Composite Torque Link for Helicopter Landing Gear Application," NLR-TP-99026, Jan, 1999.
6 Sobczyk K. and Spence. Jr. B. F., Random Fatigue : From Data to Theory, Academic Pres, Inc. Co. U.S.A, 1992.
7 주선영, 강대환, 조종욱, 권정호, "하중스펙트럼 하에서 복합재 피로수명 평가를 위한 강도저하모델 파라미터 결정," 한국항공우주학회 2008년도 추계학술발표회 논문집(I), pp. 334-338.
8 Schaff J. R. and Davidson B. D., "Life Prediction Methodology for Composite Structures. Part I, II," Journal of Composite Materials, Vol. 31, 1997.
9 Chou P. C. and Croman R., "Residual Strength in Fatigue Based on the Strength-Life Equal Rank Assumption," Journal of Composite Materials, Vol. 12, pp. 21-31, 1978.
10 Yang J. N., "Fatigue and Residual Strength Degradation for Graphite/Epoxy Composites Under Tension-Compression Cyclic Loadings," Journal of Composite Materials, Vol. 12, 1978, pp. 19-39.   DOI   ScienceOn