Biomechanical modeling of human hand

Kılıç, Osman
This thesis analyzes the wrist joint of the human hand by using a realistic threedimensional wrist model. Load distributions among carpal bones, forces on ligaments and joints were examined by using three-dimensional model. Wrist injuries and required surgical operations were examined with the model. The most crucial point of the study was that, using three-dimensional model of the wrist, hand surgeons would be able to predict results of surgical operation. Surgery planning may be done and mechanical results may be Evaluated on the wrist model.


A finite elements based approach for fracture analysis of welded joints in construction machinery
Karagöz, Taner; Dağ, Serkan; Department of Mechanical Engineering (2007)
This study aims to develop a computer program to perform finite elements based fracture mechanics analyses of three dimensional surface cracks in T-welded joints of construction machinery. The geometrical complexity of the finite elements models and the requirement of large computer resources for the analyses necessitate the use of shell elements for general stress distribution optimization. A sub-modeling technique, together with a shell to solid conversion method, enables the user to model a local region ...
Development of a two-fingered and a four-fingered robotic gripper
Doğan, Burak; Soylu, Reşit; Department of Mechanical Engineering (2010)
In this thesis study, a two-fingered gripper and a four-fingered multipurpose gripper are developed and manufactured. In addition to development of robotic hands, computer control hardware and software are also developed for computer control of both hands. The two-fingered gripper is designed for a specially defined pick and place operation. Its task is to pick a cylindrical work piece and place it in the appropriate position in a flexible manufacturing cell. Pneumatic actuator is used for power generation ...
Exact solution of rotating FGM shaft problem in the elastoplastic state of stress
Akis, Tolga; Eraslan, Ahmet Nedim (Springer Science and Business Media LLC, 2007-10-01)
Plane strain analytical solutions to estimate purely elastic, partially plastic and fully plastic deformation behavior of rotating functionally graded (FGM) hollow shafts are presented. The modulus of elasticity of the shaft material is assumed to vary nonlinearly in the radial direction. Tresca's yield criterion and its associated flow rule are used to formulate three different plastic regions for an ideal plastic material. By considerina different material compositions as well as a wide range of bore radi...
Design and analysis of filament wound composite tubes
Balya, Bora; Parnas, Kemal Levend; Department of Mechanical Engineering (2004)
This thesis is for the investigation of the design and analysis processes of filament wound composite tubes under combined loading. The problem is studied by using a computational tool based on the Finite Element Method (FEM). Filament wound tubes are modeled as multi layered orthotropic tubes. Several analyses are performed on layered orthotropic tubes by using FEM. Results of the FEM are examined in order to investigate characteristics of filament wound tubes under different combined loading conditions. W...
Development of a material cutting model for haptic rendering applications
Üner, Görkem; Konukseven, Erhan İlhan; Department of Mechanical Engineering (2007)
Haptic devices and haptic rendering is an important topic in the burgeoning field of virtual reality applications. In this thesis, I describe the design and implementation of a cutting force model integrating a haptic device, the PHANToM, with a high powered computer. My goal was to build a six degree of freedom force model to allow user to interact with three dimensional deformable objects. Methods for haptic rendering including graphical rendering, collision detection and force feedback are illustrate...
Citation Formats
O. Kılıç, “Biomechanical modeling of human hand,” M.S. - Master of Science, Middle East Technical University, 2007.