FRACTURE ANALYSIS OF CONCRETE CONSIDERING COARSE AGGREGATE-MORTAR BOUNDARY

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  • PARK SangJun
    Department of Architecture, Nagoya Univ.
  • TANIGAWA Yasuo
    Dept. of Environmental Engineering and Architecture, Graduate School of Environmental Studies, Nagoya Univ.
  • MORI Hiroshi
    Dept. of Environmental Engineering and Architecture, Graduate School of Environmental Studies, Nagoya Univ.
  • HIRAIWA Takashi
    Dept. of Architecture, Toyota National College of Technology
  • SUGIURA Mitsuru
    Dept. of Environmental Engineering and Architecture, Graduate School of Environmental Studies, Nagoya Univ.

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  • 粗骨材-モルタル境界面の影響を考慮したコンクリートの破壊解析
  • ソコツザイ モルタル キョウカイメン ノ エイキョウ オ コウリョ シタ コンクリート ノ ハカイ カイセキ

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Abstract

The properties of coarse aggregate - mortar boundary in concrete affect its fracture mechanism. In this paper, the authors propose a new visco-elasto-plastic suspension element method (VEPSEM) considering the interfacial properties in order to investigate the effect of coarse aggregate - mortar boundary on the fracture behavior of concrete. The applicability of this new analytical method is confirmed by comparing with previous analytical results. As the result, it is shown that the effect of coarse aggregate-mortar boundary can be expressed more accurately by using this new analytical method.

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