[01] Development of Micro-Plane Based Constitutive Model for Concrete
PIC: Bambang Piscesa
Co.: TBA...
Description:
Micro-plane model for concrete material has been experiencing a vast improvements over decades. One of the advantages of the micro-plane model is the explicitness
of the formulation. Thus, less computational time is expected compared to constitutive model with implicit formulation. This research project has three stages. In the first
stage, a comprehensive literature review on the development of the micro-plane constitutive model for concrete (M1-M7) are examined. The benefits and limitations of each micro-plane model (M1-M7)
are throughly evaluated. The evaluated micro-plane models are implemented in COMPLAST program and are extensively validated with the available experimental test in the literature. In the second stage,
a new micro-plane model are developed to address the limitation of the previous models. The developed micro-plane model will be implemented in COMPLAST and validated
with the available test results. At the last stage, the developed micro-plane model will be implemented in 3D-NLFEA and will be used to evaluate Reinforced Concrete
(RC) structures with complex configurations of internal and external confinement devices, as well as under complex loading conditions. Each stages are expected to be
finish within a year with a total project duration of three years.
Allocation:
- [01] One PhD student with a good understanding of both solid mechanics and computer programming in MatLab/C++/C#.
[Status: Closed, already have one prospective student]
[02] Coupling Piscesa et. al. Plasticity-Fracture Based Model with Damage Model
PIC: Bambang Piscesa
Co.: None
Description:
The main objectives of this project is to coupled the existing Piscesa et. al. plasticity-fracture model with the damage model for concrete material. With the
inclusion of damage model, the stiffness degradation can be captured and hence, extend the applicability of the model for cyclic loading. Extensive reviews
on the existing damage model will be investigated, however, the attention is focused on the lower scale damage model (meso-scale approach). Due to the difficulties
of the research and its implementations, the first phase of the project will be carried out by PIC including the implementation inside COMPLAST and 3D-NLFEA. Once the development is
finish, more projects will be available in the future.
Allocation:
- [Status: Closed ATM]
[03] Development of Plasticity Based Fiber Reinforced Concrete (FRC) Constitutive Model using Smeared and Discrete Fiber Modeling Approach.
PIC: Bambang Piscesa
Co.: Dwi Prasetya
Description:
The project objectives are to extend the Piscesa et. al. plasticity model for Fiber Reinforced Concrete (FRC) material. Two approaches are investigated.
The first method is using Smeared modeling approach such that the concrete parameters are adjusted accordingly with respect to the fiber material and
geometrical properties. The second method is by generating random truss elements as embedded elements inside the structural element boundaries. The bond-slip
relationship are included in each of the truss elements and the model can be used to study the effect of the fiber length to the overall behavior of the FRC
element. Once FRC plasticity-based model for both approaches are established, the research project will be extended to study the effect of fiber into FRC element
under confinement.
Allocation:
- [03-A] One Master student for the first approached (Discrete). The requirements are a good understanding in both solid mechanics and computer programming in Matlab/C++/C#.
[Status: Open]
- [03-B] One Master student for the second approached (Smeared). The requirements are a good understanding in both solid mechanics and computer programming in Matlab/C++/C#.
[Status: Open]