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The effect of segment length and gap distance on segmented rods penetrating into a steel target

  • China Academy of Engineering Physics
  • Southwest University of Science and Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Numerical simulations are conducted on the penetration of an L/D=5 long-rod and different ideal segment-rod into steel targets by ANSYS/LS-DYNA3D. The Lagrangian method and Johnson-Cook constitutive model are coupled in simulations. The comparative analysis indicates that the dominant contribution to the depth of penetration (DOP) of a segment-rod is due to the phase III nonsteady stage rather than the phase II quasi-steady penetration stage, which is dominant in long rod penetration. The effect of segment length and the gap distance on DOP are especially analyzed. The aspect ratio and gap distance of a segment do not affect DOP monotonically increasing or decreasing, instead there exists an optimal parameter region.

Original languageEnglish
Title of host publicationStructures under Shock and Impact XIII
PublisherWITPress
Pages125-137
Number of pages13
ISBN (Print)9781845647964
DOIs
Publication statusPublished - 2014
Externally publishedYes
Event13th International Conference on Structures under Shock and Impact, SUSI 2014 - New Forest, United Kingdom
Duration: 3 Jun 2014 → 5 Jun 2014

Publication series

NameWIT Transactions on the Built Environment
Volume141
ISSN (Print)1743-3509

Conference

Conference13th International Conference on Structures under Shock and Impact, SUSI 2014
Country/TerritoryUnited Kingdom
CityNew Forest
Period3/06/14 → 5/06/14

Keywords

  • Aspect ratio
  • DOP
  • Gap distance
  • Johnson-cook model
  • Numerical simulation
  • Segmented rods

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