Modeling and Simulation of the Hysteretic Behavior of Concrete under Cyclic Tension-Compression Using the Smeared...

Area of Science:

• Civil Engineering
• Materials Science
• Structural Engineering

Background:

• Concrete structures face cyclic tension-compression stress reversals from wind and earthquake loads.
• Accurate simulation of concrete's hysteretic behavior and energy dissipation is vital for structural safety evaluations.

Purpose of the Study:

• To propose a novel hysteretic model for concrete under cyclic tension-compression.
• To enhance the accuracy of simulating concrete's response to complex cyclic loading conditions.

Main Methods:

• Developed a hysteretic model within the smeared crack theory framework.
• Incorporated a crack surface opening-closing mechanism to define stress-strain relationships.
• Utilized linear loading-unloading paths and considered partial unloading-reloading.

Main Results:

• The model accurately simulates concrete's cracking process and hysteretic behavior.
• It effectively reproduces damage evolution, energy dissipation, and stiffness recovery.
• Model predictions align well with experimental results.

Conclusions:

• The proposed model accurately captures concrete's cyclic tension-compression response.
• It is suitable for nonlinear analysis of concrete structures under complex cyclic loads.
• The model aids in improving the seismic and wind load resistance assessment of structures.