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ZHANG Jun-qing, ZHOU Su-xia, YANG Yue, XIE Ji-long. RESEARCH ON THE THERMAL FATIGUE BEHAVIORS OF THE COMPOSITES MATERIAL SiCp/A356 USED ON THE HIGH-SPEED TRAIN[J]. Engineering Mechanics, 2011, 28(8): 252-256.
Citation: ZHANG Jun-qing, ZHOU Su-xia, YANG Yue, XIE Ji-long. RESEARCH ON THE THERMAL FATIGUE BEHAVIORS OF THE COMPOSITES MATERIAL SiCp/A356 USED ON THE HIGH-SPEED TRAIN[J]. Engineering Mechanics, 2011, 28(8): 252-256.
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RESEARCH ON THE THERMAL FATIGUE BEHAVIORS OF THE COMPOSITES MATERIAL SiCp/A356 USED ON THE HIGH-SPEED TRAIN

  • (1. Engineering Research Center of Structure Reliability and Operation Measurement Technology of Rail Guided Vehicles, Ministry of Education, Beijing Jiaotong University, Beijing 100044, China; 2. School of Mechanical-Electronic and Automobile Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China; 3. Vehicle Performance Center of Foton Automotive Engineering Research Institute, Beijing 102206, China)

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  • Received Date: December 31, 1899
  • Revised Date: December 31, 1899
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  • Thermal fatigue tests are carried out to the notch specimens made of particle-reinforced composites entitled SiCp/A356 between 20℃ and 300℃. The test results show that the thermal fatigue crack initiation lives of different specimens are relative to the notch radius and specimen thickness. The thermal elastic-plastic finite element method is used to simulate the stress and strain response at the notch root of the thermal fatigue test specimen, and thus the formation mechanism of residual stress is revealed. Then according to the thermal fatigue crack initiation life tests and finite element simulation of the stress-strain, the thermal fatigue strain life curves of SiCp/A356 material are given considering the residual stress. This can give the basis for the thermal fatigue property study of the particle reinforced composite SiCp/A356 used in high-speed train brake disc.
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