Effect of laser cutting on fatigue performance of aircraft skin

HOU Hongling; PENG Yuhai; XIE Yukun; PENG Kai; ZHANG Hui

doi:10.7510/jgjs.issn.1001-3806.2016.03.025

In order to explore effect of laser cutting on fatigue performance of aircraft fuselage skin, by using the method of simulation and contrast test method respectively, fatigue performance of aircraft skin material was studied by theoretical analysis and experimental verification. Analysis data of finite element fatigue of aircraft skin material, and comparison data of fatigue performance test of laser cutting specimen and mechanical milling specimen were obtained. At the same time, fatigue fracture of aircraft skin plate was scanned and analyzed by scanning electron microscope. The analysis results show that after laser cutting, fatigue life of aircraft skin material is about 5.4104. After mechanical milling, fatigue life is 2.34105. Laser cutting has a certain impact on fatigue performance of aircraft fuselage skin materials, but its fatigue life can increase through grinding and processing of cutting seams.

Effect of laser cutting on fatigue performance of aircraft skin

1. School of Mechanical Technology, Shaanxi University of Technology, Hanzhong 723001, China

Received Date: 2015-01-26

Accepted Date: 2015-03-18

Available Online: 2016-05-25

Abstract: In order to explore effect of laser cutting on fatigue performance of aircraft fuselage skin, by using the method of simulation and contrast test method respectively, fatigue performance of aircraft skin material was studied by theoretical analysis and experimental verification. Analysis data of finite element fatigue of aircraft skin material, and comparison data of fatigue performance test of laser cutting specimen and mechanical milling specimen were obtained. At the same time, fatigue fracture of aircraft skin plate was scanned and analyzed by scanning electron microscope. The analysis results show that after laser cutting, fatigue life of aircraft skin material is about 5.4104. After mechanical milling, fatigue life is 2.34105. Laser cutting has a certain impact on fatigue performance of aircraft fuselage skin materials, but its fatigue life can increase through grinding and processing of cutting seams.

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Reference (15)

[1]	XU M,HUANG H B,WANG Z L. Study on detection method of fatigue test of aircraft skin crack[J]. Structural Strength Research, 2014(2):53-56.
[2]	ZHEN R. Research on flexible fixture control system for processing aircraft skin[D].Harbin:Harbin Institute of Technology, 2009:16-20(in Chinese).
[3]	HU Y G,SUN A Q,WANG X P, et al. Research on application of aircraft skin digital manufacturing technology[J]. New Technology New Process, 2014(8):19-22(in Chinese).
[4]	PENG Y H, HOU H L, LI Z F, et al. Development of cutting tool for production breaks of aircraft fuselage[J]. Manufacturing Technology Machine Tool, 2014(1):103-107(in Chinese).
[5]	THOMAS D J. The effect of laser cutting parameters on the formability of complex phase steel[J]. The International Journal of Advanced Manufacturing Technology, 2013, 64(1):1297-1311.
[6]	ZHANG R Y.Fatigue testing and analysis theory and practice[M].Beijing:National Defense Industry Press, 2011,4:44-76(in Chinese).
[7]	STANDARDIZATION ADMINISTRATION OF PEOPLE'S REPUBLIC OF CHINA. GBT26076-2010 Metal sheets and strips-axial-force-controlled fatigue testing method[S].Beijing:China Standard Press, 2011:1-5 (in Chinese).
[8]	YANG Z. Fatigue life analysis of a large compressor crankshaft[D]. Shanghai:East China University of Science and Technology, 2014,4:42-50(in Chinese).
[9]	TAN X M, ZHANG D F, CHEN Y L, et al. Probabilistic method to predict fatigue life based on crack initiating micro-mechanism of aluminum alloy[J]. Journal of Aeronautical Materials, 2014,34(2):84-89(in Chinese).
[10]	WANG X L, SHANGGUAN W B, LIU T K, et al.Experiment of uniaxial tension fatigue and modeling of fatigue life for filled natural rubbers[J].Journal of Mechanical Engineering, 2013,48(7):65-72 (in Chinese).
[11]	LI J M,WANG C M,YAN F, et al. Study on microstructure and mechanical properties of 6005a joint in laser mig-hybrid welding[J]. Laster Technology,2014,38(6):733-737(in Chinese).
[12]	YILBAS B S, AKHTAR S S, KELES O. Laser cutting of aluminum foam:experimental and model studies[J]. International Journal of Manufacturing and Engineering,2013,135(5):1-9.
[13]	PANDEY A K, DUBEY A K. Modeling and optimization of kerf taper in pulsed laser cutting of duralumin sheet[C]//ASME 2012 International Manufacturing Science and Engineering Conference. Notre Dame, Indiana, USA:American Society of Mechanical Engineers, 2012:491-498.
[14]	AKHTAR S S. Laser cutting of thick-section circular blanks:thermal stress prediction and micro structural analysis[J]. The International Journal of Advanced Manufacturing Technology, 2014, 71 (3):1345-1358.
[15]	HUA Y Q,XIAO T,XUE Q, et al. Experimental study about laster cutting of carbon fiber reninforced polymer[J]. Laster Technology,2013,37(5):565-570(in Chinese).

Effect of laser cutting on fatigue performance of aircraft skin

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