Analysis tools for size and shape design of laminated composite shells

Cıbır, Fatih


Progressive failure analysis of composite shells
Olcay, Yasemin; Darendeliler, Haluk; Department of Mechanical Engineering (2012)
The objective of this thesis is to investigate the progressive failure behavior of laminated fiber reinforced composite shell structures under different loading conditions. The laminates are assumed to be orthotropic and the first order shear deformation theory is applied. Three-node layered flat-shell elements are used in the analysis. To verify the numerical results obtained, experimental and analytical results found in literature are compared with the outputs of the study, and the comparison is found to ...
Failure analysis of thick composites
Erdem, Melek Esra; Parnas, Kemal Levend; Department of Mechanical Engineering (2013)
A three-dimensional finite element model is constructed to predict the failure of a hybrid and thick laminate containing bolted joints. The results of the simulation are compared with test results. The simulation comprises two main challenging steps. Firstly, for a realistic model, a 3D model is established with geometric nonlinearities and contact is takeninto account. The laminated composite model is constructed by 3D layered elements. The effect of different number of elements through the thickness is in...
Fatigue and static behavior of curved composite laminates
Taşdemir, Burcu; Çöker, Demirkan; Department of Aerospace Engineering (2018)
By virtue of the fact that curved composite laminates which are utilized as load carrying subcomponents in aircraft and wind turbine structures are subjected to cyclic loading during their operating time, it is crucial to understand fatigue failure mechanisms at least as much as static failure mechanisms. With the intention of understanding fatigue failure mechanisms and thus improving fatigue life of structures, these curved laminates are investigated experimentally under static and fatigue loadings. The f...
Optimum design of composite laminates with curved fiber courses under strength and stability constraints
Kasap, İsmail; Oral, Süha; Department of Mechanical Engineering (1996)
Assessment and modelling of particle clustering in cast aluminum matrix composites
Çetin, Arda; Kalkanlı, Ali; Department of Metallurgical and Materials Engineering (2008)
The damage and deformation behaviour of particle reinforced aluminum matrix composites can be highly sensitive to local variations in spatial distribution of reinforcement particles, which markedly depend on melt processing and solidification stages during production. The present study is aimed at understanding the mechanisms responsible for clustering of SiC particles in an Al-Si-Mg (A356) alloy composite during solidification process and establishing a model to predict the risk of cluster formation as a f...
Citation Formats
F. Cıbır, “Analysis tools for size and shape design of laminated composite shells,” Ph.D. - Doctoral Program, Middle East Technical University, 2001.