Effects of cutout and impact loading condition on crashworthiness characteristics of conical frusta

AbstractThis study focuses on the axial and oblique low-velocity impact response of thin-walled aluminium conical frusta with circular cutouts at two different locations through experimental and finite element procedures. In this regard, a circular cutout was laterally introduced on 15°, 25°, and 35° semi-apical angled conical frusta at mid-height (0.5 Hc) and three-fourth (0.75 Hc) of axis height. The low-velocity axial and oblique impact loading was performed with the perfect and imperfect (i.e. hole) conical frusta by varying the impact angle from 0° to 20° to the frustum axis and impact velocity from 4?m/s to 8?m/s. The changes in energy absorption (Eabs) and specific energy absorption (SEA) characteristics of perfect and imperfect conical frusta were analysed with the change of semi-apical angle of the frusta, location of the cutout, impact angle and direction of impact. The results show that the crush performance of 35° semi-apical angled perfect conical frustum is found to be better than 15° and 25° semi-apical angled specimens. Further, the SEA capacity of 25° semi-apical angled conical frusta having cutout at 0.75 Hc is found to be better than the SEA capacity of conical frusta having cutout at 0.5 Hc.

Language

  • English

Media Info

  • Media Type: Web
  • Features: References;
  • Pagination: pp 1046-1066
  • Monograph Title: Low velocity impact response and influence of parameters to improve the damage resistance of composite structures/materials: a critical review
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01853045
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 26 2022 1:19PM