Abstract
ABSTRACTThe present paper investigates low-velocity impact characteristics of AA1100 grade aluminium thin plate under blunt, hemispherical, ogive and conical shape impactors. AA1100 is ductile and therefore can undergo large plastic deformation and subsequent fracture and perforation. The effect of impactor shape on the contact force, absorbed energy dissipation, perforation and failure modes was studied. Johnson–Cook material model was used in numerical simulations with its material constants determined using experimental. The finite element solver ABAQUS/CAE is used to conduct the numerical study. The study is conducted using 2, 4, 6, 10, 14, 16, 18 and 22 J impact energy with velocity ranges 1.15–3.80 m/s. Results show that increase in the nose radius of impactors reduces the perforation time due to increment in contact force. Blunt impactor shows high impact resistance and hemispherical have acquired large energy absorption capacity followed by ogive and conical impactors.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
