首页> 中文期刊> 《中南大学学报》 >Measurement and evaluation of strain fields in T23 steel based on digital image correlation method

Measurement and evaluation of strain fields in T23 steel based on digital image correlation method

         

摘要

Surface strain fields of the designed compact tension(CT)specimens were investigated by digital image correlation(DIC)method.An integrative computer program was developed based on DIC algorithms to characterize the strain fields accurately and graphically.Strain distribution of the CT specimen was predicted by finite element method(FEM).Good agreement is observed between the surface strain fields measured by DIC and predicted by FEM,which reveals that the proposed method is practical and effective to determine the strain fields of CT specimens.Moreover,strain fields of the CT specimens with various compressive loads and notch diameters were studied by DIC.The experimental results can provide effective reference to usage of CT specimens in triaxial creep test by appropriately selecting specimen and experiment parameters.

著录项

  • 来源
    《中南大学学报》 |2017年第9期|P.1977-1985|共9页
  • 作者单位

    [1]School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China [2]School of Mechanical Engineering, Shanghai Dianji University, Shanghai 201306, China;

    [1]School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China [2]School of Mechanical Engineering, Shanghai Dianji University, Shanghai 201306, China;

    [1]School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China [2]School of Mechanical Engineering, Shanghai Dianji University, Shanghai 201306, China;

    [1]School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China [2]School of Mechanical Engineering, Shanghai Dianji University, Shanghai 201306, China;

    [1]School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China [2]School of Mechanical Engineering, Shanghai Dianji University, Shanghai 201306, China;

    [1]School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China [2]School of Mechanical Engineering, Shanghai Dianji University, Shanghai 201306, China;

    [1]School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China [2]School of Mechanical Engineering, Shanghai Dianji University, Shanghai 201306, China;

    [1]School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China [2]School of Mechanical Engineering, Shanghai Dianji University, Shanghai 201306, China;

  • 原文格式 PDF
  • 正文语种 CHI
  • 中图分类 偏微分方程的数值解法;
  • 关键词

    数字图像相关 应变场 T23钢 测量 相关方 评价 三轴蠕变试验 计算机程序;

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