Evaluation and Application of Tensile Strength Prediction for CFRP Bars

被引：0
|
作者：
Wang B. [1 ]
Yang Y.-X. [1 ]
Yue Q.-R. [1 ]
Zeng B. [1 ]
机构：
[1] Central Research Institute of Building and Construction Co., Ltd., Beijing
来源：
Wang, Bin (mccwangbin@126.com) | 2017年 / Beijing Institute of Aeronautical Materials (BIAM)卷 / 45期
关键词：
CFRP bars; Evaluation; Prediction; Tensile strength;
D O I：
10.11868/j.issn.1001-4381.2015.001435
中图分类号：
学科分类号：
摘要：
Based on the prediction formula of tensile strength for CFRP bars, weight of influence of the typical factors on material strength was evaluated, and the mechanism of intensity compensation in the process of preparing CFRP bar was proposed. The results show that the effect of typical factors of carbon fiber tensile strength and volume fraction effect on the tensile strength of CFRP bars is most significant (influence rate:39.1%-46.7% and 43.5-52.6%). They are the most important factors that determine the tensile properties of CFRP bars. Nominal diameter has a certain effect on the tensile strength of CFRP bars (influence rate: 7.1%-15.4%). Influence of resin matrix strength on the tensile strength of the CFRP bar is not obvious (influence rate: 0.3%-1.0%). Compared to the other three factors, the influence of the tensile strength of resin can be nearly neglected. According to the intensity compensation rule of the typical factors, the strength and volume fraction of carbon fiber in CFRP bars can be easily inferred. © 2017, Journal of Materials Engineering. All right reserved.
引用
收藏
页码：117 / 123
页数：6
相关论文
共 40 条
  • [1] Smith S.J., Bank L.C., Gentry T.R., Et al., Analysis and testing of a prototype pultruded composite causeway structure, Composite Structures, 49, 2, pp. 141-150, (2000)
  • [2] Bank L.C., Gentry T.R., Nuss K.H., Et al., Construction of a pultruded composite structure: case study, Journal of Composites for Construction, 4, 3, pp. 112-119, (2000)
  • [3] Harper L.T., Turner T.A., Warrior N.A., Et al., Characterisation of random carbon fiber composites from a directed fiber preforming process:the effect of tow filamentisation, Composites:Part A, 38, pp. 755-770, (2007)
  • [4] Li B., Yang Y.X., Yue Q.R., Et al., Experimental study on mechanical properties of CFRP tendon, Applied Mechanics and Materials, 357-360, pp. 1097-1101, (2013)
  • [5] Li W.J., Li B., Yang Y.X., Et al., Discussion on the Chinese standard and specifications of FRP bar products, Fiber Reinforced Plastics/Composites, 8, pp. 101-104, (2014)
  • [6] Wang B., Yang Y.X., Yue Q.R., Et al., The discrete research on the values predicted by composite theories and measured for carbon fiber reinforced composite rods, Fiber Reinforced Plastics/Composites, 12, pp. 63-67, (2014)
  • [7] Cheng D.H., Zheng W.Z., Behavioral research concrete beam prestressed with unbonded, Journal of Shenyang Jianzhu University(Natural Science), 24, 4, pp. 537-542, (2008)
  • [8] Yu B.J., Cai W.H., Zhang J.W., Et al., Study on static load tests of bond type anchors for CFRP tendons, Industrial Construction, 43, 4, pp. 118-121, (2013)
  • [9] Meng L.X., Guan J.G., Xu F.Q., The anchorage development and experiment study on the mechanical properties for CFRP tendons, Construction Technology, 34, 7, pp. 42-45, (2005)
  • [10] Zhan J.D., Du X.L., Wang Z.H., Experimental study on the wedge-bond anchorage of CFRP tendons, Journal of Shenyang Jianzhu University(Natural Science), 26, 1, pp. 31-36, (2010)
1234