Abstract
To further develop lightweight and effective individual stab-resistant equipment, this study drew on the biological armor model of nature to design a bionic stab-resistant substrate with a triangular pyramidal structure. Numerical simulations and experimental testing of a knife impacting a substrate were used to study the impact-resistance behavior and stab-resistance mechanism of a triangular pyramidal stab-resistant substrate, and an optimal structural design was thus obtained. Because the triangular pyramidal structure had a dispersing effect on the knife impact force, the material could avoid the concentrated damage by the impact kinetic energy, giving the triangular pyramidal structure a much higher stab resistance than a comparable flat plate. The optimal angle of the triangular pyramidal stab-resistant substrate produced from a modified titanium alloy (TC611) material with excellent impact toughness was found to be 22.5° and the optimal thickness 1 mm. A full stab-resistant layer designed and manufactured using a new riveting method passed the knife impact test for police stab-resistant clothing in line with the GA 68-2008 standards. This clothing works more effectively against the impact of a knife, being lightweight, and having a shorter manufacturing cycle, and higher wearability.
| Translated title of the contribution | Substrate Design and Stab-Resistant Mechanism of a New Type of Bionic Stab-Resistant Clothing |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 609-616 |
| Number of pages | 8 |
| Journal | Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology |
| Volume | 40 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1 Jun 2020 |