Volume 37 Issue 3
Jun 2023
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SHI Jingfu, YU Dong, XU Huadong, LIU Lei, MIAO Changqing. Strain Rate Effect of UHMWPE and Its Influence on Hypervelocity Impact Performance[J]. Chinese Journal of High Pressure Physics, 2023, 37(3): 034101. doi: 10.11858/gywlxb.20220666
Citation: SHI Jingfu, YU Dong, XU Huadong, LIU Lei, MIAO Changqing. Strain Rate Effect of UHMWPE and Its Influence on Hypervelocity Impact Performance[J]. Chinese Journal of High Pressure Physics, 2023, 37(3): 034101. doi: 10.11858/gywlxb.20220666

Strain Rate Effect of UHMWPE and Its Influence on Hypervelocity Impact Performance

doi: 10.11858/gywlxb.20220666
  • Received Date: 28 Sep 2022
  • Rev Recd Date: 04 Nov 2022
  • Available Online: 17 Apr 2023
  • Issue Publish Date: 05 Jun 2023
  • To analyze the strain rate effect and its influence on the dynamic response of ultra-high molecular weight polyethylene (UHMWPE) subjected to hypervelocity impact, the stress-strain relation of UHMWPE at different strain rates loading were obtained through universal material testing machine and Hopkinson bar experimental system. Furthermore, strain rate effect on the hypervelocity impact response was analyzed by numerical simulation. The results show that the tensile modulus and strength increase with the rise of strain rate. With the increase of the strain rate sensitivity index, the energy absorption ratio of the protective structure against the projectile decreases at the beginning followed by an increasing trend.

     

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