Seminar by İlker Temizer

Seminar by
İlker Temizer
Mechanical Engineering
Bilkent University

 

 

Optimization can play a significant role in computational mechanics. In this talk, I will present two interface mechanics problems where the choice of the optimization algorithm determines accuracy, efficiency and robustness. The first half of the talk will be devoted to contact mechanics problems which are highly nonlinear primarily due to large deformations and the presence of contact constraints. Specifically, I will concentrate on the formulation and application of a class of interior point methods to the weak enforcement of the constraints. In the second half, I will summarize our ongoing work on micro-texture design for thin-film lubrication. Here, the problem is posed in the context of the homogenization theory which constitutes a link between the objective function and the pixelated optimization space. Overall, I aim to give a balanced overview of our goals (mechanics and computation) and the employed tools (discretization and optimization).
Bio:

 

İlker Temizer received his B.S. degree (2001) from Boğaziçi University and his M.S. (2003) and Ph.D. (2005) degrees from the University of California, Berkeley in Mechanical Engineering. Subsequently, he joined the Institute of Continuum Mechanics of the Leibniz University at Hannover as a post-doctoral researcher where he held teaching and research responsibilities in addition to the leadership of a junior research group. Since September 2010, he is a faculty member at Bilkent University. His research efforts are focused on the theoretical and numerical aspects of computational mechanics that are associated with multiscale-multiphysics modeling strategies for heterogeneous materials and interfaces.