A displacement equivalence-based damage model for brittle materials-part II: Verification

This paper focuses on the application of the damage model for brittle materials proposed in the preceding paper on theory. The evolution rule of damage derived using the Onsager relations is specified according to the experimental observation. The loading-unloading condition is discussed and the tangent modulus is derived. Then, the determination of the modal parameters is presented. For verification, the proposed model is applied to concrete under uniaxial and biaxial loading, and the numerical results are compared with those of other researchers and with the experimental results. The results are generally in good agreement and the proposed model is considered worthy for further research work.