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Modification of the contact surfaces for improving the puncture resistance of laminar structures

Wang P 1 , Yang J 2 , Li X 3 , Liu M 4 , Zhang X 5 , Sun D 5 Show all authors , Bao C 5 , Gao G 6 , Yahya MY 7 , Xu S 8

Affiliations 

  • 1 CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, 230027, China
  • 2 Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China. maeyang@ust.hk
  • 3 College of Mechanics, Taiyuan University of Technology, Taiyuan, Shanxi, 030024, China
  • 4 Department of Materials Engineering, The University of Tokyo, 7-3-1 Hongo Bunkyo-ku, Tokyo, 113-8656, Japan
  • 5 School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Singapore
  • 6 School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, China
  • 7 Centre for Composite, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, Johor, 81310, Malaysia
  • 8 CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, 230027, China. SLXu99@ustc.edu.cn
Sci Rep, 2017 07 26;7(1):6615.
PMID: 28747656 DOI: 10.1038/s41598-017-06007-3

Abstract

Uncovering energy absorption and surface effects of various penetrating velocities on laminar structures is essential for designing protective structures. In this study, both quasi-static and dynamic penetration tests were systematical conducted on the front surfaces of metal sheets coated with a graphene oxide (GO) solution and other media. The addition of a GO fluid film to the front impact surface aided in increasing the penetration strength, improving the failure extension and dissipating additional energy under a wide-range of indentation velocity, from 3.33 × 10-5 m/s to 4.42 m/s. The coated -surfaces improved the specific energy dissipation by approximately 15~40% relative to the dry-contact configuration for both single-layer and double-layer configurations, and specific energy dissipations of double-layer configurations were 20~30% higher than those of the single-layer configurations. This treatment provides a facile strategy in changing the contact state for improving the failure load and dissipate additional energy.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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