The relation between fiber orientation and tensile behavior in an Ultra High Performance Fiber Reinforced Cementitious Composites (UHPFRCC)

被引：370

作者：

Kang, Su-Tae ^{[2
]}

Kim, Jin-Keun ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Civil & Environm Engn, Taejon 305701, South Korea

[2] Korea Inst Construct Technol, Struct Engn & Bridges Res Div, Goyang 411712, South Korea

来源：

CEMENT AND CONCRETE RESEARCH | 2011年 / 41卷 / 10期

关键词：

Tensile properties (C); Composite (E); Fiber reinforcement (E); High performance concrete (E); Orientation; BRITTLE-MATRIX COMPOSITES; STEEL-FIBER; MECHANICAL-PROPERTIES; CONCRETE; STRENGTH; COMPRESSION; DISPERSION; FRACTURE;

D O I：

10.1016/j.cemconres.2011.05.009

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this study, the effect of the fiber orientation distribution on the tensile behavior of Ultra High Performance Fiber Reinforced Cementitious Composites (UHPFRCC) was investigated. The tensile behavior was explored separately in two stages; pre-cracking and post-cracking tensile behaviors. Pre-cracking tensile behavior is expressed using the mechanism of elastic shear transfer between the matrix and the fiber in the composites. Post-cracking tensile behavior was expressed as the combined behavior of the resistance by the fibers and the matrix, considering a probability density distribution for the fiber orientation distribution across crack surface and a pullout model of steel fiber. The effect of the fiber orientation distribution was found to be very small on pre-cracking behavior, but to be significant on post-cracking behavior of UHPFRCC. The predicted results were compared with the experimental results, and the comparison presented satisfactory agreement. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1001 / 1014

页数：14

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