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相关实验视频

Updated: May 12, 2025

Intermediate Strain Rate Material Characterization with Digital Image Correlation
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Intermediate Strain Rate Material Characterization with Digital Image Correlation

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关于使用数字图像关联技术获得机械性质的方法的研究.

Shuai Wang1,2,3, Bin Wang2, Shengyong Mu4

  • 1College of Mechanical Engineering, Xi'an Shiyou University, Xi'an 710065, China.

Materials (Basel, Switzerland)
|May 7, 2025
PubMed
概括

数字图像相关性 (DIC) 为有限元模拟中的材料参数确定提供了准确的应变测量. 这种非接触式方法与伸缩表结果非常相匹配,并提供更广泛的测量范围以提高准确性.

关键词:
弹性塑料有限元素方法.机械性能 机械性能 机械性能单轴拉伸试验 单轴拉伸试验

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相关实验视频

Last Updated: May 12, 2025

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科学领域:

  • 材料科学 材料科学 材料科学
  • 机械工程 机械工程
  • 核工程 核工程是指核工程.

背景情况:

  • 精确的机械性能对于可靠的有限元模拟至关重要.
  • 单轴拉伸试验传统上会产生应力-拉伸数据来确定参数.
  • 数字图像相关性 (DIC) 是一种非接触式光学技术,用于全场应变测量.

研究的目的:

  • 为了比较数字图像相关性 (DIC) 和张力计之间的应变测量精度.
  • 评估DIC对于获得有限元模拟材料参数的适用性.
  • 评估DIC在核电站组件的316L不钢拉伸试验中的应用.

主要方法:

  • 对316L不钢样品进行拉伸测试.
  • 使用张力计和DIC系统同时测量应变.
  • 用两种测量技术的数据进行有限元模拟.
  • 单轴拉伸试验的数值模拟.

主要成果:

  • DIC测量在应变计测量范围内的应变计结果与DIC测量结果密切匹配.
  • 与传统张力计相比,DIC显示了更广泛的测量范围.
  • 这两种方法都提供了适用于有限元模拟的数据.

结论:

  • DIC是一种可行且有效的方法,用于获得有限元模拟的材料机械参数.
  • 在某些应用中,DIC的非接触性和更广泛的范围比张力计具有优势.
  • DIC的精度和全面的应变数据有助于进行更可靠的工程模拟,特别是对于316L不钢等核材料.