Some investigation on damage behavior of concrete based on complex simulations

Abstract

Concrete is a widely used composite construction material owing to its high compressive strength and long-term durability in engineering applications. This paper presents an investigation into the damage behavior and compressive strength of concrete through numerical simulation approaches, taking into account key micromechanical characteristics of the material. The numerical model is developed with explicit consideration of aggregate shape and distribution, mechanical properties of the cementitious matrix, and the characteristics of the interfacial transition zone between aggregates and mortar. Numerical simulation results are systematically compared with experimental data to assess the accuracy and reliability of the proposed modeling framework. The good agreement between numerical predictions and experimental measurements demonstrates the capability of the model to realistically capture the compressive behavior of concrete. The results provide insight into damage initiation, propagation mechanisms, and stress redistribution under compressive loading. Furthermore, the study elucidates the relationship between microstructural features and macroscopic mechanical responses of concrete. The proposed numerical model demonstrates strong potential for application in structural analysis, design optimization, and performance assessment. Overall, this research contributes to the development of high-performance and sustainable concrete materials for advanced engineering practice.