András Sipos

508 Malott Hall
Ph.D. (2007) Budapest University of Technology and Economics
Research Area
Nonlinear elasticity, numerical methods for PDEs, bifurcation theory.
The focus of my research is theoretical mechanics and applied mathematics accompanied by their application to problems related to engineering. Since graduation I took part in projects which relied strongly on simulation of nonlinear ordinary and partial differential equations to model some phenomena in nature. Good examples are the abrasion of asteroids under steady impact of the surrounding smaller celestial objects or the counterintuitive equilibrium positions of the so called rocking stones.
I am interested in nonlinear elasticity, even my PhD thesis about non-linear rod theories contributed this field. As a winner of the Dr. Korányi Imre Civil Engineering fellowship I spent the 2010/2011 academic year at Cornell, my host was Timothy J. Healey. I carried out stability analysis for solutions in a simple microstructural model of shape memory alloys. Recently I work on problems related to thin films and the fracture of brittle materials.
Selected Publications
Healey TJ, Sipos AA (2013) Computational stability of phase-tip splitting in the presence of small interfacial energy in a simple two-phase solid, Physica D – Nonlinear Phenomena 261:62-69.
Domokos G, Sipos AA, Szabó T (2012): The mechanics of rocking stones: equilibria on separated scales. Mathematical Geosciences 44:71-89.
Sipos AA, Domokos G, Wilson A, Hovius N (2011) A Discrete Random Model Describing Bedrock Profile Abrasion. Mathematical Geosciences 43:583-591
Domokos G, Sipos AA, Szabó Gy, Várkonyi P (2009) Formation of sharp edges and planar areas of asteroids by polyhedral abrasion, Astrophysical Journal 699:L13-L16
