Comments to the paper “A nonlinear dynamic uniaxial strength criterion that considers the ultimate dynamic strength of concrete” by Dechun Lu, Guosheng Wang, Xiuli Du, Yang Wang. Int J Impact Eng 103 (2017), 124-137

- Equation (6) is completely the same as Eq. (27) of Ref. [1].
- Some incorrect statement/description of Ref.[1] needs to be corrected..
- The non-linear dynamic uniaxial compressive strength criterion of [1] has not differentiated the dynamic compressive strength due to strain rate effect only from that ascribed to inertia effect only.