Analytical and numerical modeling of plain concrete’s post-cracking behavior using a trilinear softening curve

Document Type : Original Article

Authors
Ghoson DANHASH 1
Mais GHASSOUN 2
Mayada KOUSA 3
George WARDEH 4
1 Al-Baath University &Wadi International University/ Syria.
2 Wadi International University.
3 Damascus University / Syria.
4 Director of Cergy-Pontoise University institute of technology / France.
10.24271/psr.2024.189654
Abstract
The aim of the present work is to investigate the softening behavior of a notched concrete beam under a three-point bending test analytically, experimentally, and numerically using XFEM in Abaqus. This study presented a trilinear stress-strain softening curve-based analytical model to describe the complete flexural behavior of plain concrete beams. The article also provides the mathematical equations necessary for calculating the force-crack opening displacement during all cracking phases until failure. An inverse analysis of the force-CMOD curves obtained experimentally has optimized the parameters required for the identification of the tensile stress-crack opening relationship. The ABAQUS environment was used for numerical modeling using the extended finite element method (XFEM), and a good agreement between the experimental and numerical results has been noticed.
Keywords
Plain concrete
cracking
analytical model
trilinear softening
XFEM
Crossmark
Subjects
Passer Journal of Basic and Applied Sciences
Volume 6, Special Issue
Proceedings of the 4th International Conference on Recent Innovation in Engineering ICRIE 2023, University of Duhok, College of Engineering, 13th – 14th September 2023
January 2024
Pages 352-364