Advanced Search
HAN Zhiyong, WANG Zhiping, CHEN Yajun. Effect of interface topography and size on thermal stress in thermal barrier coatings[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2011, (10): 21-24.
Citation: HAN Zhiyong, WANG Zhiping, CHEN Yajun. Effect of interface topography and size on thermal stress in thermal barrier coatings[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2011, (10): 21-24.

Effect of interface topography and size on thermal stress in thermal barrier coatings

More Information
  • Received Date: December 08, 2010
  • In order to explain the failure mechanism of thermal barrier coatings in aeroengine, considering the difference of 3 dimension interface topography unit and size, the distribution of thermal stress σyy in aeroengine thermal barrier coatings was calculated using ABAQUS finite element analysis. The calculating result shows that the stress is affected by interface topography unit obviously. Compressive stress exists in concave tomography unit and tensile stress in convex topography unit. Stress concentrates on boundary of topography point and reaches maximal value at lowest and highest place of concave and convex topography respectively. Compressive and tensile stress changes with the size of topography unit distinctly. The value of stress in danger point becomes larger with the increase of the length. Stress concentrates when the change of curvature is obvious and increases with the increase of curvature.
  • Related Articles

    [1]SUN Jiamin, CAI Jianpeng, YE Yanhong, Deng Dean. Numerical simulation of electro slag welding temperature field[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(7): 93-96.
    [2]ZONG Xuemei, WU Bin, ZHANG Liping, LI Wen. Numerical simulation of temperature field in weaving welding based on ladder model[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2014, 35(11): 9-12.
    [3]ZHANG Lei, QIN Guoliang, ZHANG Chunbo, ZHAO Yushan, ZHOU Jun. Numerical simulation of radial friction welding temperature field of steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2013, (11): 32-36.
    [4]ZHANG Xiaoqi, XU Guocheng, WANG Chunsheng, WEN Jing. Numerical simulation of the temperature field during resistance spot welding with rectangular electrode[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2009, (4): 101-104.
    [5]LI Yongqiang, Zhao He, Zhao Xihua, Jiang Wenhu, Zhang Weihua. Numerical simulation of RSW temperature field during aluminum alloys LB-RSW[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2009, (4): 29-32.
    [6]DU Han-bin, HU Lun-ji, WANG Dong-cuan, SUN Cheng-zhi. Simulation of the temperature field and flow field in full penetration laser welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2005, (12): 65-68,100.
    [7]WANG Xi-jing, HAN Xiao-hui, Guo Rui-jie, LI Jing. Numerical simulation of temperature field in friction stir welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2005, (12): 17-20.
    [8]MENG Qing-guo, FANG Hong-yuan, XU Wen-li, JI Shu-de. Numerical simulation of muli-pass welding temperature field taking account of metal filling[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2004, (5): 53-55,59.
    [9]Zou Zengda, Wang Xinhong, Qu Shiyao. Numerical Simulation of Temperature Field for Weld-repaired Zone of White Cast Iron[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 1999, (1): 24-29.
    [10]Xu Qinghong, Guo Wei, Tian Xitang, Li Zhi. Numerical Simulation and Experiment of Temperature Field of Laser Cladding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 1997, (2): 58-62.

Catalog

    Article views (246) PDF downloads (236) Cited by()

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return