Dynamic Strength Characteristics of Materials: Influence of the Specimen Size on Strain Rate
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Test results are presented for an additive material prepared of acrylonitrile-butadiene-styrene on a 3D printer. Dynamic tension experiments have been carried out using a tower-type drop hammer with an accelerator. Data obtained from different specimens demonstrate that high-strain-rate tensile experiments are feasible if the working part of the specimen is decreased. A theoretical analysis of test data using the incubation time criterion has been performed, and it has been found that analytical results are in good agreement with experimental data.
This study was supported by the Russian Foundation for Basic Research (grant no. 18-51-80008).
Section “METHOD OF DYNAMIC TENSILE TESTING” was written by A.A. Chevrychkina with support from the Russian Science Foundation (grant no. 17-11-01053).
Experiments were conducted on equipment of the resource center at St. Petersburg State University Scientific Park Extremal States of Materials and Structures.