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Analysis of Critical Flaws on the Surfaces of Window Glass Using a Scanning Electron Microscope

Analysis of Critical Flaws on the Surfaces of Window Glass Using a Scanning Electron Microscope
使用扫描电子显微镜分析窗玻璃表面的关键缺陷
批准号:
8615382
负责人:
H. Scott Norville
金额:
$3.0万
依托单位:
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:
1986-09-01 至 1988-02-29

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中文摘要
翻译
从1980年到1985年进行的破坏性测试的破碎镜子被保存下来;这个收藏的独特之处在于它源于窗户、玻璃板和镜子表面上自然出现的缺陷。选定的试件将用扫描电子显微镜进行分析,以确定除其他观察外:自然产生的临界流动的一般形状;新的和风化的玻璃板表面出现的缺陷的形状和大小的差异;当在均匀载荷下进行全尺寸试验时,以及使用同心圆试验时,两种类型的试件的临界流动之间的差异;在不同的流动方向/应力方向关系下,断裂应力与缺陷尺寸之间的关系。
英文摘要
Fractured mirrors from destructive tests performed from 1980 to 1985 were saved; this collection is unique in that it originated from naturally occurring flaws on window glass plate and mirror surfaces. Selected specimens will be analyzed using a scanning electron microscope to determine, among other observations: the general shapes of naturally occuring critical flows; differences between shapes and sizes of flaws occurring on the surfaces of new and weathered window glass plates; the differences between the critical flows for both types of specimens when tested in full scale under uniform loading, and when using the concentric rings tests; and the correlation between stress at failure and flaw size at various flow direction/stress direction relationships.
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Research Initiation: Probabilistic Behavior of Elasto- Plastic Columns Due to Horizontal-Vertical Earthquake Loads
  • 批准号:
    8205317
  • 项目类别:
    Standard Grant
  • 资助金额:
    $4.67万
  • 财政年份:
    1982
  • 负责人:
    H. Scott Norville
  • 依托单位:
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