Fracture features of anisotropic materials at different impact velocities*. Issue 5 (2nd November 2017)

• Record Type: Journal Article
• Authors: Krivosheina, M. N.; Kobenko, S. V.; Tuch, E. V.; Kashin, O. A.; Lotkov, A. I.; Khon, Yu. A
• Is Part Of: Revue Européenne de mécanique numérique. Volume 26:Issue 5/6(2017)
• Page Start: 609
• Page End: 621
• Publication Date: 2017-11-02
• Subjects: 3D simulation -- finite element method -- low-anisotropy aluminium alloy, impact loading, elastic, plastic, and strength anisotropy; Engineering mathematics -- Periodicals; Mechanics -- Data processing -- Periodicals; Finite element method -- Periodicals; Mechanics -- Mathematical models -- Periodicals; Engineering -- Statistical methods -- Periodicals; 621.05
• DOI: 10.1080/17797179.2017.1393733
• Languages: English
• ISSNs: 1779-7179

Abstract

Abstract: The paper provides a 3D finite element simulation to investigate the fracture of low-anisotropy aluminium alloy 2024 loaded by a steel impactor at a velocity of 200 and 600 m/s. For aluminium alloy 2024 a failure criterion in terms of ultimate plastic strains is used taking into account the elastic, plastic, and strength anisotropy of the target material. The simulation results, presented as cross-sectional fracture distributions, demonstrate that increasing the impact velocity results in additional fracture zones in anisotropic materials whose elastic, plastic, and strength properties are lowest in the in-plane direction compared to isotropic materials.