短繊維強化セメント系複合材料の引張強度の寸法効果に関する確率論的検討

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タイトル別名
  • STOCHASTIC STUDY ON SIZE EFFECT IN TENSILE STRENGTH OF SHORT-FIBER REINFORCED CEMENTITIOUS COMPOSITES
  • タンセンイ キョウカ セメントケイ フクゴウ ザイリョウ ノ ヒッパリ キョウド ノ スンポウ コウカ ニ カンスル カクリツロンテキ ケントウ

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抄録

Direct tensile and flexural tests on polypropylene short-fiber reinforced cementitious composites were executed. Thereafter a stochastic study was performed to investigate the effect of the specimen size on its tensile strength. The results are: 1. Size-effect in the tensile strength was clarified and the tendency was described by a function. 2. An extrapolation to 5.31mm^3 in volume of direct tension specimen showed the same tensile strength as flexural strength of tested beams, which suggests direct tensile strength and flexural strength of the specimen are directly correlated to each other.

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