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A Novel Technique for Measuring Fracture Resistance Parameters in Cementitious Materials

A Novel Technique for Measuring Fracture Resistance Parameters in Cementitious Materials
测量胶凝材料抗断裂参数的新技术
批准号:
8516893
负责人:
Victor Li
金额:
$8.25万
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
1986
资助国家:
美国
项目状态:
已结题
起止时间:
1986-01-15 至 1988-06-30

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中文摘要
翻译
本研究开发了一种新的实验方法,利用众所周知的J积分来表征裂缝扩展所涉及的能量,并测量砂浆和混凝土的抗裂参数。J的测量是用柔度法进行的,其中包括在负荷线上测量裂纹张开位移和在紧致拉伸试样上的裂纹尖端。该试验方法在砂浆上取得了初步成功,并将其应用于混凝土和短纤维增强混凝土。
英文摘要
This research develops a new experimental method using the well known J integral to characterize the energy involved in crack extension and measure fracture rersistance parameters in mortar and concrete. The measurement of J is made using compliance methods which involve measurement of crack opening displacement at the load line and the crack tip on a compact tension specimen. Early success on mortar with this experimental method has been demonstrated and the research extends the application to concrete and short fiber reinforced concrete.
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国内基金
海外基金
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  • 批准号:
    61671111
  • 项目类别:
    面上项目
  • 资助金额:
    58.0万元
  • 批准年份:
    2016
  • 负责人:
    肖飞
  • 依托单位: