A Simplified Uniaxial Stress-strain Curve of Concrete and Its Application in Numerical SimulationLou Yafei, Zou Tao, Yang Jie, Jiang Tao, Zhang Qingfang and Hong HexuanE3S Web Conf., 283 (2021) 01045DOI: https://doi.org/10.1051/e3sconf/202128301045