Altan Kayran

E-mail

akayran@metu.edu.tr

Department

Department of Aerospace Engineering

ORCID

0000-0002-0840-6887

Scopus Author ID

7003421551

Web of Science Researcher ID

ABA-1358-2020

Investigation of Variable Taper Angle Design in Highly Tapered Laminates for Delaying Delamination Ergin, Fırat; Kayran, Altan (2025-03-01) Specific requirements in aircraft components may necessitate the use of high taper angles in the thickness transition region of composite laminates, leading to early delamination initiation at the thin side of the taper re...
Lattice Cell Assisted Topology Optimization of an Extendable Wing for Munition Aksoy, Buğra; Kayran, Altan (2025-01-01) This study focuses on developing a structural concept for an extendable wing for munitions using a lattice-cell-assisted approach. The process involves topology optimization followed by size optimization of the strut-based...
Surrogate model based optimization of variable stiffness composite wingbox for improved buckling load with manufacturing and failure constraints Inci, Hasan; Kayran, Altan (2025-01-01) The buckling load of a wingbox is maximized by applying different automatic fiber placement (AFP) strategies on the skins of the wing having NACA 4412 airfoil profile. Specifically, the effect of single, dual and three reg...
Application of Artificial Neural Network based Surrogate Models for Parameterized Flow to a Sweptback Wing: An Outlook for Wind Turbine Blades Yilmaz, Ozge Ozkaya; Kayran, Altan (2025-01-01) The dynamics of blunt-body reentry vehicles are crucial, as they must withstand the intense aerodynamic forces and extreme heat generated during atmospheric reentry. Despite thermal protection benefits, the blunt body shap...
Numerical Investigation of Ply Termination Techniques for Delamination Resistance Ergin, Fırat; Kayran, Altan (2025-01-01) Necessary ply termination locations for improved weight and stiffness distribution in laminated composite structures can cause early initiation of delamination due to the elevated interlaminar stresses in wind turbine blad...
Comparative numerical analysis of gap and overlap effect on mechanical properties of variable stiffness composites Demirer, Halime Gül; Kayran, Altan (2024-08-26)
A Comparative Study on the Efficiencies of Aerodynamic Reduced Order Models of Rigid and Aeroelastic Sweptback Wings Özkaya Yılmaz, Özge; Kayran, Altan (2024-08-01) This paper presents the effect of wing elasticity on the efficiency of a nonintrusive reduced order model using a three-dimensional sweptback wing. For this purpose, a computationally low-cost but highly accurate nonintrus...
High Aspect Ratio Composite Wings: Geometrically Nonlinear Aeroelasticity, Multi-Disciplinary Design Optimization, Manufacturing, and Experimental Testing Farsadi, Touraj; Ahmadi, Majid; Şahin, Melin; Haddad Khodaparast, Hamed; Kayran, Altan; Friswell, Michael I. (2024-03-01) In the field of aerospace engineering, the design and manufacturing of high aspect ratio composite wings has become a focal point of innovation and efficiency. These long, slender wings, constructed with advanced materials...
Improving the Load Carrying Capacity of Highly Tapered Laminates Ergin, Fırat; Kayran, Altan (2024-02-08) Kat düşme bölgelerindeki artan gerilimler, katman ayrılmasına neden olur ve çok sayıda katın kısa mesafede sonlandırıldığı kompozit parçaların mukavemetini azaltır. Bu çalışmada, yüksek oranda konikleştirilmiş lamine kompo...
Topology-Lattice Optimization of an Extendable Wing Kayran, Altan; Aksoy, Buğra (2024-01-01) The main focus of this study is to develop a structural concept for an extendable wing for munition utilizing lattice cell assisted topology optimization followed by size optimization of the radii of the strut-based lattic...

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