TY - JOUR
T1 - Buckling and post-buckling of filament wound composite tubes under axial compression
T2 - Linear, nonlinear, damage and experimental analyses
AU - Almeida, José Humberto S.
AU - Tonatto, Maikson L.P.
AU - Ribeiro, Marcelo L.
AU - Tita, Volnei
AU - Amico, Sandro C.
PY - 2018/9/15
Y1 - 2018/9/15
N2 - Identification of the boundary between failure by buckling, collapse and material failure in cylindrical tubes under axial compression is still challenging. The focus of this research is to investigate the response of carbon/epoxy filament wound cylindrical tubes under axial compression. Three approaches have been studied: (i) linear buckling; (ii) nonlinear buckling; and (iii) progressive damage modeling (PDM). For that, analytical, numerical and experimental approaches have been followed. Key results show that thinner tubes fail by buckling followed by a post-buckling field, whereas material failure due to transverse compression and in-plane shear stresses occur for thicker tubes. Both analytical and linear numerical models predicted very well the critical buckling load for all [±α] tubes, and nonlinear buckling model satisfactorily predicted axial displacement over the loading history. For multilayered tubes, the developed damage model provided better predictions compared to the nonlinear buckling model. Furthermore, for thicker tubes, a hoop layer at the outermost, instead of middle or innermost, improves buckling/compressive resistance.
AB - Identification of the boundary between failure by buckling, collapse and material failure in cylindrical tubes under axial compression is still challenging. The focus of this research is to investigate the response of carbon/epoxy filament wound cylindrical tubes under axial compression. Three approaches have been studied: (i) linear buckling; (ii) nonlinear buckling; and (iii) progressive damage modeling (PDM). For that, analytical, numerical and experimental approaches have been followed. Key results show that thinner tubes fail by buckling followed by a post-buckling field, whereas material failure due to transverse compression and in-plane shear stresses occur for thicker tubes. Both analytical and linear numerical models predicted very well the critical buckling load for all [±α] tubes, and nonlinear buckling model satisfactorily predicted axial displacement over the loading history. For multilayered tubes, the developed damage model provided better predictions compared to the nonlinear buckling model. Furthermore, for thicker tubes, a hoop layer at the outermost, instead of middle or innermost, improves buckling/compressive resistance.
KW - Analytical modeling
KW - Buckling
KW - Composite tube
KW - Filament winding
KW - Finite element modeling
KW - Progressive damage
UR - http://www.scopus.com/inward/record.url?scp=85047631537&partnerID=8YFLogxK
U2 - 10.1016/j.compositesb.2018.05.004
DO - 10.1016/j.compositesb.2018.05.004
M3 - Article
AN - SCOPUS:85047631537
VL - 149
SP - 227
EP - 239
JO - Composites Part B: Engineering
JF - Composites Part B: Engineering
SN - 1359-8368
ER -