In order to explore the dynamic behavior of metallic foams under the stretch of constant high strian rate,a few numerical simulations were conducted to explore the effects of both the height of specimen and the tensile velocity on the stress uniformity and deformation uniformity as well as the failure position of the specimen under dynamic tensile loading.And then,a feasible numerical simulation scheme was proposed to obtain dynamic tensile properties of metallic foams under dynamic tension loading with constant strain rates.According to this scheme,the max strain rate reaches 5 000 s-1 by mea...