“…This type of failure proves that there was no radial restraint on the constrained edges of the cylinder. 19 …”
Section: Resultsmentioning
confidence: 99%
“…This type of failure proves that there was no radial restraint on the constrained edges of the cylinder. 19 Figure 10.Static buckling modes of FML composite cylinder with 0/90° and ±55° fiber orientation.Figure 11.Buckling modes of FML composite cylinder of different fiber orientation.…”
The external hydrostatic buckling behavior of fiber metal laminate (FML) composite cylinders was investigated numerically. The critical buckling pressure predicted by eigenvalue analysis was compared with experimental results. The numerical results showed different modes of buckling and buckling deformation for cylinders of different fiber orientation when subjected to external hydrostatic loading. FML cylinder with 0 /90 fiber orientation exhibited higher buckling strength and lower buckling deformation as compared to FML cylinders of 60 /30 , AE45 , and AE55 fiber orientations. The orientation of fiber has significant influence on the performance of FML composite cylinder as compared to fiberreinforced plastic thickness. The correlation between numerical and experimental results is discussed in terms of buckling strength, circumferential stiffness, and buckling deformations. It was observed that the cylinders were less sensitive to initial imperfections irrespective of fiber-reinforced plastic thickness. In addition, the results of finite element analysis and experimental results indicate good matches.
“…This type of failure proves that there was no radial restraint on the constrained edges of the cylinder. 19 …”
Section: Resultsmentioning
confidence: 99%
“…This type of failure proves that there was no radial restraint on the constrained edges of the cylinder. 19 Figure 10.Static buckling modes of FML composite cylinder with 0/90° and ±55° fiber orientation.Figure 11.Buckling modes of FML composite cylinder of different fiber orientation.…”
The external hydrostatic buckling behavior of fiber metal laminate (FML) composite cylinders was investigated numerically. The critical buckling pressure predicted by eigenvalue analysis was compared with experimental results. The numerical results showed different modes of buckling and buckling deformation for cylinders of different fiber orientation when subjected to external hydrostatic loading. FML cylinder with 0 /90 fiber orientation exhibited higher buckling strength and lower buckling deformation as compared to FML cylinders of 60 /30 , AE45 , and AE55 fiber orientations. The orientation of fiber has significant influence on the performance of FML composite cylinder as compared to fiberreinforced plastic thickness. The correlation between numerical and experimental results is discussed in terms of buckling strength, circumferential stiffness, and buckling deformations. It was observed that the cylinders were less sensitive to initial imperfections irrespective of fiber-reinforced plastic thickness. In addition, the results of finite element analysis and experimental results indicate good matches.
“…These include the circumferential weld depression Published in: Engineering Structures, 85C, 234-248. DOI: http://dx.doi.org/10.1016/j.engstruct.2014.12.033 7 [38], lap-joints [49,50], misfits of curved panels [51,52], local foundation settlement [53], global out-of-roundness [3,54] and local wall flattening [55], amongst many others.…”
Section: Background To the Interpretation Of Imperfection Measurementsmentioning
“…As soluções dos problemas são as cargas críticas clássicas (autovalores) e seus respectivos modos de flambagem (autovetores). A abordagem de limite inferior (lower bound approach) é baseada nesse tipo de análise e é uma das recomendações do EUROCODE em 2007 [68]. As cargas clássicas e os modos de flambagem da casca perfeita são obtidas através da análise linear de flambagem.…”
Section: Evolução Da Teoria De Estabilidade De Cascasunclassified
Agradeço primeiramente aos meus pais e ao meu irmão pelo apoio e carinho. Aos amigos do laboratório de Veículos Não Tripulados (João Dantas, Lucas Machado, William Caetano, Persing Cardenas, Rodrigo Diana e Franco Picarelli, Sarah Pérez e Igor Silva) pelo companheirismo e pela colaboração durante o dia a dia. Ao Dr. Alexander Alfonso Alvarez pela paciência e perseverança ao longo deste trabalho.
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