Sensitivity analysis on numerical modeling to simulate the flexural shear failure for reinforced concrete beams without stirrups

Flexural shear failure is a brittle failure mode that can occur in reinforced concrete (RC) beams without stirrups due to the combination of flexural and shear stresses. The failure mode begins with vertical flexural cracks at the bottom of the RC beam central span area due to flexural tensile stresses, followed by diagonal cracks. During...

Influence of Numerical Size Effect in Non-Linear Finite Element Analysis: Investigation of Different Configurations of Iterative-Incremental Method for Shear Failure Mode of Reinforced Concrete without Shear Reinforcement

In concrete structures, shear failure is one of the failure mechanisms that should be estimated carefully due to its brittle nature. As the technology advances, the capacity of shear in concrete structures can be calculated with the analytical formulation in codes and standards and simulated with NLFEA. The shear capacity is affected by the size...

Probabilistic Reliability Assessment for Non-Linear Finite Element Analysis of Reinforced Concrete Beams

Non-linear finite element analysis (NLFEA) is a powerful numerical solution method that can enhance accurate determination of the structural resistance for a more efficient design. However, the implementation of NLFEA for the design of reinforced concrete structures is lagging behind as related uncertain- ties have not been quantified adequately...

Model Uncertainty of Non-Linear Finite Element Analysis of Reinforced Concrete Beams without Shear Reinforcement: Examining the Effect of Modelling Strategies and Modes of Failure

The aim of this thesis project is to investigate the model uncertainty of non-linear finite element analysis of reinforced concrete structures at ultimate limit state by focusing on concrete cracking model, concrete-reinforcement interaction model and mesh size. Following this, eight finite element modelling strategies are developed and 67...

Effect of Flexural Cracks on Web-Shear Cracking of Prestressed Concrete Continuous Members

Shear tension failure in thin-webbed prestressed concrete elements is yet to be predicted in an accurate manner. The analytical method uses assumptions to simplify the theory. This makes it less accurate. The calculated resistance to web-shear cracking is based on the principle tensile stress reaching the tensile strength of concrete. Failing in...

A Study of the Application of Safety Formats in Non-linear Finite Element Analysis of Reinforced Concrete Tunnel Segment

The application of non-linear finite element analysis is important nowadays to simulate the real behavior of structure. A sort of non-linear finite element analysis with and without safety formats referring to Model Code 2010 is applied in this thesis, to study the FEM simulation of the shear capacity of reinforced concrete structure. A case...