Molded gratings are extensively used in different industries such as aerospace, construction and shipbuilding due to their good mechanical properties such as biaxial strength and stiffness and their significant corrosion resistance and high strength-to-weight ratio. These composites are sensitive to the damage caused by the impacts. Low velocity impacts, cause internal damages in the structure and the extent of this damage during next loadings, decreases the strength of the structure, considerably. In this study the strength of molded grating composites against impact loads and their bending residual strength are investigated. For this purpose, molded grating composites were modeled as a unidirectional material except in the intersections where its behavior was modeled as a bidirectional material. Different failure criteria of Maximum stress, Maximum strain, Hashin and modified Hashin with suitable degradation model have been employed with modifications in the VUMAT subroutine that were implemented in the ABAQUS commercial software. Material degradation model for this material was selected for the purpose that numerical analysis matches with the experimental results; therefore, if the damage occurs in any mode, the corresponding reduction in the elastic properties is equal to 5% of the intact material. The low-velocity impact tests were performed on the grating composite panels by using the drop weight tower with two different drop weights of 5.5 kg falling from 1 m height and the drop weight of 10.3 kg falling from 1.07 m and 1.5 m heights. The results showed that the numerical analysis predicts the ultimate force and the slope of load-displacement diagram with a reasonable accuracy and correlate well with the experimental results. The simulation of three point bending test on the intact specimens showed that Maximum stress and strain failure criteria were higher bounds of the inserted force; however, Hashin and Modified Hshin failure criteria were its lower bound. Among investigated criteria, only Hashin criterion was able to predict damaged areas and bending residual strength, accurately. For the case of 5.5 kg drop weight falling from 1 m height, due to the less damage and occurrence of the local damage under the punch area, the ultimate force predicted by the numerical analysis was 19.6% less than the experimental results. For the case of 10.3 kg drop weight falling from 1.07 m and 1.5 m heights, load-displacement curves obtained from both numerical and experimental analysis were in a good agreement and the ultimate force predicted by numerical simulation was about 10% more than experimental results. Keywords: Molded grating composite, Low-velocity impact, Damage, Residual bending strength