Parameter Identification for Finite Element Based Models in Dry Machining Applications

Development of a Finite Element Methodology for Flexible Track Models in Railway Dynamics Applications

The dynamic analysis of railway vehicles involves the construction of three independent models: the vehicle model; the track model; and the wheel-rail contact model. In this work, a multibody formulation with Cartesian coordinates is used to describe the kinematic structure of the rigid bodies and joints that constitute the vehicle model. A methodology is also proposed in order to create detail...

Influence of Friction Models on Finite Element Simulations of Machining

In the analysis of orthogonal cutting process using FE simulations, predictions are greatly influenced by two major factors; a) flow stress characteristics of work material at cutting regimes and b) friction characteristics mainly at the chip-tool interface. The influence of work material flow stress upon FE simulations may be less or even none when there is a constitutive model for work materi...

Adaptive Finite Element Methods for Parameter Identification Problems

A NEW APPROACH BASED ON FINITE ELEMENT MODEL UPDATING FOR STRUCTURAL DAMAGE IDENTIFICATION

In this study, the finite element model updating was simulated by reducing the stiffness of the members. Due to lack of access to the experimental results, the data obtained from an analytical model were used in the proposed structural damage scenarios. The updating parameters for the studied structures were defined as a reduction coefficient applied to the stiffness of the members. Parameter v...

ii FINITE ELEMENT SIMULATION OF MACHINING

Dean of the Graduate College iii ACKNOWLEDGEMENTS I wish to express my gratitude to my parents for their confidence in me. I would like to thank them for their consistent encouragement and love. I would like to extend my gratitude to my brother and sister for their inspiration, support and love. My special thanks are due to my roommates in Nandanvan for their motivation and support during my st...