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Laser & Optoelectronics Progress, Volume. 56, Issue 23, 231403(2019)

Numerical Simulation of Stress Field of Laser Phase Transformation Hardening Vermicular Graphite Cast Iron Based on Beam Discretization

Ming Pang* and Wendan Tan
Author Affiliations
  • Airport College, Civil Aviation University of China, Tianjin 300300, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (8)
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    References (21)
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    Figures & Tables(8)
    Finite element mesh model. (a) Three-dimensional model; (b) X-Z section

    Fig. 1. Finite element mesh model. (a) Three-dimensional model; (b) X-Z section

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    Temperature gradient distributions on two paths. (a) Path 1; (b) path 2

    Fig. 2. Temperature gradient distributions on two paths. (a) Path 1; (b) path 2

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    Thermal stress distribution nephograms in three directions. (a) X direction; (b) Y direction; (c) Z direction

    Fig. 3. Thermal stress distribution nephograms in three directions. (a) X direction; (b) Y direction; (c) Z direction

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    Thermal stress distributions on two paths. (a) Path 1; (b) path 2

    Fig. 4. Thermal stress distributions on two paths. (a) Path 1; (b) path 2

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    Residual stress distribution nephograms in three directions. (a) X direction; (b) Y direction; (c) Z direction

    Fig. 5. Residual stress distribution nephograms in three directions. (a) X direction; (b) Y direction; (c) Z direction

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    Residual stress distributions on two paths. (a) Path 1; (b) path 2

    Fig. 6. Residual stress distributions on two paths. (a) Path 1; (b) path 2

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    Residual stress distributions on path 1 under different laser parameters. (a) Different laser power; (b) different laser heating time

    Fig. 7. Residual stress distributions on path 1 under different laser parameters. (a) Different laser power; (b) different laser heating time

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    • Table 1. Mechanical property parameters of RuT300

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      Table 1. Mechanical property parameters of RuT300

      Temperature /℃252004006008001000
      Yield strength /MPa24022120017815740
      Elastic modulus /GPa145140135129124100
      Poisson ratio0.260.260.260.260.260.26
      Thermalexpansion coefficient /(10-6·℃-1)10.611.512.513.514.515.5
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    Ming Pang, Wendan Tan. Numerical Simulation of Stress Field of Laser Phase Transformation Hardening Vermicular Graphite Cast Iron Based on Beam Discretization[J]. Laser & Optoelectronics Progress, 2019, 56(23): 231403

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    Paper Information

    Category: Lasers and Laser Optics

    Received: May. 5, 2019

    Accepted: Jun. 26, 2019

    Published Online: Nov. 27, 2019

    The Author Email: Pang Ming (pangming1980@126.com)

    DOI:10.3788/LOP56.231403

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology