Open AccessNumerical Study on Impact Resistance of Periodic Porous Structure
Author(s) -
Bai Mengting
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1939/1/012046
Subject(s) - materials science , deformation (meteorology) , cubic crystal system , stress (linguistics) , finite element method , mechanics , nonlinear system , transverse plane , porosity , computer simulation , composite material , geometry , structural engineering , physics , condensed matter physics , mathematics , engineering , linguistics , philosophy , quantum mechanics
Based on the face centered cubic (FCC) and body centered cubic (BCC) structures, the effects of impact velocity on the deformation modes and stress-strain curves of periodic porous structures are studied by using the dynamic display nonlinear finite element method. The numerical simulation results show that under quasi-static loading, the overall deformation mode of face centered cubic structure presents a transverse “X” shape, while the overall uniform deformation of body centered cubic structure occurs. Under high speed loading, the two structures present layer by layer deformation. With the increase of loading speed, the stress plateau of the two structures increases, and the stress-strain curves fluctuate.