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Recommendation of RILEM TC 212-ACD: acoustic emission and related NDE techniques for crack detection and damage evaluation in concrete: Test method for classification of active cracks in concrete structures by acoustic emission

机译:RILEM TC 212-ACD的建议:用于混凝土裂缝检测和损伤评估的声发射和相关的NDE技术:通过声发射对混凝土结构中活动裂缝进行分类的测试方法

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摘要

Concrete Structures are known to be no longer maintenance-free. Consequently, a variety of inspection techniques are under development and going to be established. It is well known that acousticrnemission (AE) technique is promising to test concrete structures for damage estimation [1]. For in-situ inspection, estimation of active cracks is of significant importance. Due to damage evolution in reinforced concrete structures, AE events are observed under in-service conditions. Generally speaking, nucleation of shear cracks follows tensile cracks on an existing failure surface. Accordingly, for an early warning of crack nucleation, the classification of active cracks is in great demand.
机译:已知混凝土结构不再免维护。因此,正在开发和建立各种检查技术。众所周知,声发射(AE)技术有望测试混凝土结构的损伤估计[1]。对于现场检查,活动裂纹的估计非常重要。由于钢筋混凝土结构中的损伤演变,在使用条件下会观察到AE事件。一般而言,剪切裂纹的成核作用是在现有破坏面上的拉伸裂纹之后。因此,为了早期通知裂纹成核,非常需要对活动裂纹进行分类。

著录项

  • 来源
    《Materials and structures》 |2010年第9期|p.1187-1189|共3页
  • 作者

    Masayasu Ohtsu;

  • 作者单位

    Kumamoto University, Kurokami 2-39-1, Kumamoto 860-8555, Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

  • 入库时间 2022-08-18 00:18:04

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