Thesis supervisor: Katalin Bagi
Location of studies (in Hungarian): BME Department of Structural Mechanics Abbreviation of location of studies: EOTM
Description of the research topic:
The aim of the research is to analyse the characteristic crack patterns of masonry domes and vaults. These structures consist of separate masonry blocks, and their discrete built-up strongly influences their mechanical response to static or kinematic loads. The failure of such structures is often related to a localized effect, e.g. crushing or sliding of a single voussoir, or a few cracked joints forming a hinge. Traditional continuum-based methods are inefficient or even unable to describe these phenomena. Discrete element models can overcome this difficulty: after their material parameters are suitably calibrated, they can reliably simulate the mechanical behaviour.
Masonry domes and vaults show characteristic crack patterns in case of support displacements, but they often retain their load bearing ability even if appear significantly cracked (“orange-slice”-like cracks of domes; Sabouret-cracks of cross vaults etc.). The aim of the research is to understand how and why the most important crack patterns are formed, then predict their response for further support displacements; and finally to give suggestions for strengthening against failure.
Demonstrated experience in using a discrete element code with polyhedral elements is indispensable.
3DEC discrete element code and if needed, ANSYS finite element code are available for performing the research.
Number of students who can be accepted: 1
Deadline for application: 2024-05-31
2024. IV. 17. ODT ülés Az ODT következő ülésére 2024. június 14-én, pénteken 10.00 órakor kerül sor a Semmelweis Egyetem Szenátusi termében (Bp. Üllői út 26. I. emelet).
Login
