Presentation Details
Numerical fracture studies of ultra-high performance concrete under dynamic loading
Thursday, 12 Oct 2017; 13:30 - 13:50 in room 7.12
In Session:
MS04-1: Computational Analysis and Modeling of Experimental Dynamic Loading Tests (Show complete Mini Symposium)
Thursday, 12 Oct 2017; 13:30 - 15:30 in room 7.12
Show complete Session
Institute of Solid Mechanics
University of Siegen
Siegen, Germany
Institute of Solid Mechanics
University of Siegen
Siegen, Germany
Institute of Solid Mechanics
University of Siegen
Siegen, Germany
Micro Abstract:
Ultra-high performance concrete (UHPC) is a new class of concrete material. In this contribution, split Hopkinson pressure bar (SHPB) is modified and utilized to conduct series of spalling tests. Dynamic elastic modulus and dynamic tensile strength of the studied UHPC sepcimens are determined. Furthermore, the spalling test is numerically simulated by MATLAB program. Within this context two numerical fracture methods are compared with respect to determination of main parameter like the tensile strength and the specific fracture energy. In order to determine the latter one an inverse analysis is applied. The achieved results showed good agreement between numerical simulations and experimental observations.