Seawater effect on impact behavior of glass-epoxy composite pipes

被引：52
作者：
Deniz, Mehmet Emin [1 ]
Karakuzu, Ramazan [1 ]
机构：
[1] Dokuz Eylul Univ, Dept Mech Engn, TR-35100 Izmir, Turkey
来源：
COMPOSITES PART B-ENGINEERING | 2012年 / 43卷 / 03期
关键词：
Polymer-matrix composites (PMCs); Impact behavior; Environmental degradation; Filament winding; LOW-VELOCITY IMPACT; DAMAGE; IMMERSION; SHELLS;
D O I：
10.1016/j.compositesb.2011.11.006
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of seawater immersion on impact behavior of glass-epoxy composite pipes is experimentally investigated. Glass-epoxy pipes with [+/-55 degrees](3) orientation were fabricated using filament winding method. Composite pipes were selected for four different diameters as 50 mm, 75 mm, 100 mm, and 150 mm. The pipes were immersed in artificial seawater having a salinity of about 3.5% for 3, 6, 9, and 12 months in laboratory conditions. At the end of the conditioning period, the specimens were impacted at three distinct energy levels as 15J, 20J, and 25J at ambient temperature of 20 degrees C. The comparisons between the dry and immersed cases were carried out by using contact force, deflection and absorbed energy data of the impact tests. Results show that moisture absorption, salt in seawater, diameter of specimen and residual stresses produced by manufacturing process of the composite pipe have significant effect on maximum contact force, maximum deflection, absorbed energy and failure of composite pipes according to exposure time to seawater. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1130 / 1138
页数：9
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