TY - JOUR
T1 - Comparison of the crushing performance of hollow and foam-filled small-scale composite tubes with different geometrical shapes for use in sacrificial cladding structures
AU - Palanivelu, Sivakumar
AU - Paepegem, Wim Van
AU - Degrieck, Joris
AU - Vantomme, John
AU - Kakogiannis, Dimitrios
AU - Ackeren, Johan Van
AU - Hemelrijck, Danny Van
AU - Wastiels, Jan
PY - 2010/9
Y1 - 2010/9
N2 - This paper presents the quasi-static crushing performance of nine different geometrical shapes of small-scale glass/polyester composite tubes filled with polyurethane closed-cell foam for use in sacrificial cladding structures. The effect of polyurethane foam on the crushing characteristics and the corresponding energy absorption is addressed for each geometrical shape of the composite tube. Composite tubes with two different thicknesses (1 mm and 2 mm) have been considered to study the influence of polyurethane foam on the crushing performance. From the present study, it was found that the presence of polyurethane foam inside the composite tubes suppressed the circumferential delamination process and fibre fracturing; consequently, it reduced the specific energy absorption of composite tubes. Furthermore, the polyurethane foam attributed to a higher peak crush load for each composite tube. However, the presence of polyurethane foam inside the composite tubes significantly increased the stability of the crushing phenomena especially for the square and hexagonal cross-sectional composite tubes with 1 mm wall thickness. The results from this study are compared with our previous results for composite tubes without polyurethane foam [1].
AB - This paper presents the quasi-static crushing performance of nine different geometrical shapes of small-scale glass/polyester composite tubes filled with polyurethane closed-cell foam for use in sacrificial cladding structures. The effect of polyurethane foam on the crushing characteristics and the corresponding energy absorption is addressed for each geometrical shape of the composite tube. Composite tubes with two different thicknesses (1 mm and 2 mm) have been considered to study the influence of polyurethane foam on the crushing performance. From the present study, it was found that the presence of polyurethane foam inside the composite tubes suppressed the circumferential delamination process and fibre fracturing; consequently, it reduced the specific energy absorption of composite tubes. Furthermore, the polyurethane foam attributed to a higher peak crush load for each composite tube. However, the presence of polyurethane foam inside the composite tubes significantly increased the stability of the crushing phenomena especially for the square and hexagonal cross-sectional composite tubes with 1 mm wall thickness. The results from this study are compared with our previous results for composite tubes without polyurethane foam [1].
KW - A. Foams
KW - A. Glass fibres
KW - B. Delamination
KW - D. Mechanical testing
UR - http://www.scopus.com/inward/record.url?scp=77955414591&partnerID=8YFLogxK
U2 - 10.1016/j.compositesb.2010.05.009
DO - 10.1016/j.compositesb.2010.05.009
M3 - Article
AN - SCOPUS:77955414591
SN - 1359-8368
VL - 41
SP - 434
EP - 445
JO - Composites Part B:Engineering
JF - Composites Part B:Engineering
IS - 6
ER -