[1] Pan Jianwu, Wu Gang, Yuan Xigui,. Fatigue behavior of basalt-aramidand basalt-carbon hybrid fiber reinforced polymer sheets [J]. Journal of Southeast University (English Edition), 2013, 29 (1): 84-87. [doi:10.3969/j.issn.1003-7985.2013.01.017]

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Fatigue behavior of basalt-aramidand basalt-carbon hybrid fiber reinforced polymer sheets()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

29

Issue:

2013 1

Page:

84-87

Research Field:

Materials Sciences and Engineering

Publishing date:

2013-03-20

Info

Title:

Fatigue behavior of basalt-aramidand basalt-carbon hybrid fiber reinforced polymer sheets

Author(s):

Pan Jianwu¹;  Wu Gang²;  Yuan Xigui¹

¹Civil Engineering Department, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
²School of Civil Engineering, Southeast University, Nanjing 210096, China

Keywords:

hybrid fiber reinforced polymer sheet;  basalt-aramid;  basalt-carbon;  fatigue experiment;  stiffness degradation model

PACS:

TU599

DOI:

10.3969/j.issn.1003-7985.2013.01.017

Abstract:

In order to study the fatigue failure mode and fatigue life laws of basalt-aramid and basalt-carbon hybrid fiber reinforced polymer(FRP)sheets, fatigue experiments are carried out, considering two hybrid ratios of 1∶1 and 2∶1 under different stress levels from 0.6 to 0.95. The results show that fractures occur first in carbon fibers or aramid fibers for the specimens with hybrid ratio of 1∶1, namely B1A1 and B1C1, while a fracture occurs first in basalt fibers for the specimens with a hybrid ratio of 2∶1, namely B2A1 and B2C1. The fatigue lives of the hybrid FRP sheets increase with the improvement of the content of carbon fibers or aramid fibers, and the influence of the carbon fibers content improvement to fatigue life is more significant. The fatigue performance of B2A1 is relatively worse, while the fatigue performance of B1C1 and B2C1 is relatively better. Finally, a new fatigue stiffness degradation model with dual variables and double inflection points is presented, which is applicable to both hybrid and normal FRP sheets.

References:

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Memo

Memo:

Biography: Pan Jianwu(1976—), male, doctor, lecturer, panjianwu@nuaa.edu.cn.
Foundation item: The National Natural Science Foundation of China(No. 51108238).
Citation: Pan Jianwu, Wu Gang, Yuan Xigui. Fatigue behavior of basalt-aramid and basalt-carbon hybrid fiber reinforced polymer sheets[J].Journal of Southeast University(English Edition), 2013, 29(1):84-87.[doi:10.3969/j.issn.1003-7985.2013.01.017]

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