Experimental study on the axial crushing behaviour of pultruded composite tubes

被引:96
作者
Palanivelu, Sivakumar [1 ]
Van Paepegem, Wim [1 ]
Degrieck, Joris [1 ]
Van Ackeren, Johan [2 ]
Kakogiannis, Dimitrios [2 ]
Van Hemelrijck, Danny [2 ]
Wastiels, Jan [2 ]
Vantomme, John [3 ]
机构
[1] Univ Ghent, Dept Mat Sci & Engn, B-9000 Ghent, Belgium
[2] Vrije Univ Brussels, Dept Mech Mat & Construct, B-1050 Brussels, Belgium
[3] Royal Mil Acad, Civil & Mat Engn Dept, B-1000 Brussels, Belgium
关键词
Specific energy absorption; Triggering mechanism; Crushing; Progressive failure; Composite tubes; ENERGY-ABSORPTION; ALUMINUM EXTRUSIONS; CYLINDRICAL-SHELLS; SQUARE TUBES; CRASHWORTHINESS; CAPABILITY; COLLAPSE;
D O I
10.1016/j.polymertesting.2009.11.005
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
This paper presents an experimental investigation on the progressive deformation behaviour of uni-directional pultruded composite tubes subjected to an axial impact load. Pultruded square and circular profiles with glass-polyester and glass-vinylester combinations were used for this study. Two types of triggering profiles were incorporated to investigate the effect of triggering on the energy absorption. All above combinations were investigated for three different impact velocities (9.3, 12.4 and 14 m/s). The crushing peak and mean load characteristics of the composite tubes with different triggering profiles and their progressive failure modes are presented. To measure the impact velocity and the impact force, a contactless method using digital image correlation technique was adopted. The effects of the geometry profile, triggering, strain rate and the type of resin on energy absorption of the composite tubes were studied in detail. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:224 / 234
页数:11
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