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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
这项研究发展了一种新的实验方法,使用众所周知的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中的断裂阻力参数。J的测量采用柔度法,包括在紧凑拉伸试件上测量载荷线和裂纹尖端的裂纹张开位移。这种试验方法在砂浆上取得了初步的成功,并将其推广到混凝土和短纤维混凝土中。
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
新型滤波器综合技术-直接综合技术(Direct synthesis Technique)的研究及应用
  • 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: