Frequency effect in short-beam shear fatigue of a glass fiber reinforced polyester composite

被引：9
|
作者：
Kotik, Hector [1 ,2 ,3 ]
Perez Ipina, Juan [1 ]
机构：
[1] Univ Nacl Comahue CONICET, Grp Mecan Fractura, CP 8300, RA-1400 Buenos Aires, Neuquen, Argentina
[2] Univ Nacl Sur, Dept Ingn, Ave Colon 80,8000FTN, Bahia Blanca, Buenos Aires, Argentina
[3] IMPSA CONICET Grp Meccan Fractura, CP 8300, RA-1400 Buenos Aires, DF, Argentina
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2016年 / 90卷
关键词：
Short-beam shear test; Interlaminar shear fatigue; Frequency; Glass reinforced polyester; GLASS/EPOXY; BEHAVIOR; TESTS;
D O I：
10.1016/j.ijfatigue.2016.04.025
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The effect of loading frequency on short-beam shear fatigue behavior of a glass fiber reinforced polyester laminated was studied. Surface specimen temperature increase and macroscopic specimen damage were also evaluated. The tests were performed employing a short-beam device with three amplitude stress levels, four frequencies between 1 and 10 Hz and a shear stress ratio R = 0.1. Specimens with the smallest stress amplitude showed a fatigue life between 10(5) and 10(6) cycles and the largest stress amplitude endured approximately 10(4) cycles. The high stress amplitude tests produced increases in specimen temperature up to 7 degrees C, 4 degrees C and 1 degrees C for 10 Hz, 6 Hz and both 3 and 1 Hz respectively, while no temperature changes were measured in low amplitude tests. According to the statistical analysis performed, the changes in fatigue life were not significant for the frequency range employed in this study. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：116 / 124
页数：9
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