第３部門⑤

[23013-17-05] Crack propagation and collapse simulation of Concrete Members Using RBSM Considering Contact(Proceedings of Symposium on Applied Mechanics)

*Ayane Kikuchi¹, Wataru Nakamura¹, Yoshihito Yamamoto¹ (1. hosei University)

Keywords:RBSM, Crack propagation, Collapse simulation, Geometric nonlinearity

In order to accurately reproduce the collapse behavior of concrete structures, an algorithm to update the network between elements is introduced in the RBSM considering geometric nonlinearity. Specifically, a new network was constructed by placing multiple contact-determining spheres on Voronoi polyhedral elements and a reduced integration Timoshenko beam element between the newly-determined contact elements. As a result, in the numerical simulation of concrete structures, the contact phenomenon after large displacement and large rotation behavior, which could not be reproduced by the conventional RBSM, can be reproduced.