TY - JOUR
T1 - Buckling of woven GFRP cylinders under concentric and eccentric compression
AU - Elghazouli, A. Y.
AU - Chryssanthopoulos, M. K.
AU - Esong, I. E.
N1 - Funding Information:
The work presented in this paper was sponsored by the European Commission under a Brite-Euram programme (Project BE-7550: Design and Validation of Imperfection-Tolerant Shell Structures). Thanks are due to Intermarine-Spa for providing the specimens, to Prof. Poggi of Politecnico di Milano for carrying out material property tests, and to all the other partners for many productive discussions. The authors would also like to express their gratitude to Mr T Boxall and Mr R Millward of the Structures Laboratories at Imperial College for their dedication and professionalism in conducting the tests.
PY - 1999/5
Y1 - 1999/5
N2 - The experimental behaviour of laminated glass fibre-reinforced plastic (GFRP) cylinders under compression and bending is examined in this paper. The laminates are of type 'Rovimat 1200' consisting of woven glass fibre roving, with a chopped mat on one side, within a polyester resin matrix. Two and three-ply cylinders with various orthogonal orientations were considered, for which the nominal radius-to-thickness ratio was about 108 and 72, respectively. Use was made of an automated laser scanning system for measuring geometric imperfections and progressive buckling deformations of the models. Following a description of the specimen and loading details, the results of experiments on ten models are presented. The results include thickness and imperfection mapping, displacement and load measurements as well as important observations regarding the failure mode and overall behaviour of each model. The findings highlight the effects of laminate construction and loading eccentricity on the buckling strength of cylinders within the range examined. Both elastic buckling and material-dominated failure modes were observed, depending on the slenderness and load type considered. The tests also provide detailed experimental data, which are necessary for further analytical and design studies.
AB - The experimental behaviour of laminated glass fibre-reinforced plastic (GFRP) cylinders under compression and bending is examined in this paper. The laminates are of type 'Rovimat 1200' consisting of woven glass fibre roving, with a chopped mat on one side, within a polyester resin matrix. Two and three-ply cylinders with various orthogonal orientations were considered, for which the nominal radius-to-thickness ratio was about 108 and 72, respectively. Use was made of an automated laser scanning system for measuring geometric imperfections and progressive buckling deformations of the models. Following a description of the specimen and loading details, the results of experiments on ten models are presented. The results include thickness and imperfection mapping, displacement and load measurements as well as important observations regarding the failure mode and overall behaviour of each model. The findings highlight the effects of laminate construction and loading eccentricity on the buckling strength of cylinders within the range examined. Both elastic buckling and material-dominated failure modes were observed, depending on the slenderness and load type considered. The tests also provide detailed experimental data, which are necessary for further analytical and design studies.
UR - http://www.scopus.com/inward/record.url?scp=0032795644&partnerID=8YFLogxK
U2 - 10.1016/S0263-8223(99)00008-2
DO - 10.1016/S0263-8223(99)00008-2
M3 - Journal article
AN - SCOPUS:0032795644
SN - 0263-8223
VL - 45
SP - 13
EP - 27
JO - Composite Structures
JF - Composite Structures
IS - 1
ER -