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

Scientific Reports

Songlin Xu¹  Pengfei Wang¹  Mohd Yazid Yahya²  Xin Li³  Mao Liu⁴  Jinglei Yang⁵  Guangfa Gao⁶  Chenlu Bao⁷  Xin Zhang⁷  Dawei Sun⁷ 

[1] CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China;Centre for Composite, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia;College of Mechanics, Taiyuan University of Technology;Department of Materials Engineering, The University of Tokyo;Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology;School of Mechanical Engineering, Nanjing University of Science and Technology;School of Mechanical and Aerospace Engineering, Nanyang Technological University;

DOI  :  10.1038/s41598-017-06007-3

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown