Impact Response Features and Penetration Mechanism of UHMWPE Subjected to Handgun Bullet
Yihui Zhu, Yang Song, Wei Wu, Jie Ma, Zhuangqing Fan, Yaoke Wen, Cheng Xu, Min Xia, Weifeng Da
TL;DR
This study examines how UHMWPE laminates respond to handgun bullets, revealing damage patterns and energy conversion to improve protective gear for military and police personnel.
Contribution
The study introduces a numerical method to analyze UHMWPE's impact response and energy conversion during bullet penetration.
Findings
Bullet penetration caused cross-shaped failure due to fiber compression and aggregation.
Maximum in-plane shear strain occurred at ±45° with values of 0.0904 and −0.0928.
Most erosion energy occurred in the first four sublaminates, with major energy change at 75 μs in the fourth sublayer.
Abstract
Ensuring military and police personnel protection is vital for urban security. However, the impact response mechanism of the UHMWPE laminate used in ballistic helmets and vests remains unclear, making it hard to effectively protect the head, chest, and abdomen. This study utilized 3D-DIC technology to analyze UHMWPE laminate’s response to 9 mm lead-core pistol bullets traveling at 334.93 m/s. Damage mode and response characteristics were revealed, and an effective numerical calculation method was established that could reveal the energy conversion process. The bullet penetrated by 1.03 mm, causing noticeable fiber traction, resulting in cross-shaped failure due to fiber compression and aggregation. Bulge transitioned from circular to square, initially increasing rapidly, then slowing. Maximum in-plane shear strain occurred at ±45°, with values of 0.0904 and −0.0928. Model accuracy was…
Genes, proteins, chemicals, diseases, species, mutations and cell lines named across the full text — each resolved to its canonical identifier and authoritative record.
Click any figure to enlarge with its caption.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
Figure 16
Figure 17
Figure 18
Figure 19
Figure 20
Figure 21
Figure 22
Figure 23
Figure 24
Figure 25
Figure 26
Figure 27
Figure 28
Figure 29
Figure 30
Figure 31
Figure 32
Figure 33Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsChemical synthesis and alkaloids · Alkaloids: synthesis and pharmacology · Oxidative Organic Chemistry Reactions