Influence of Topical Cross-Linking on Mechanical and Ballistic Performance of a Woven Ultra-High-Molecular-Weight Polyethylene Fabric Used in Soft Body Armor

2021 ◽  
Author(s):  
Mathieu L. Lepage ◽  
Mahdi Takaffoli ◽  
Chakravarthi Simhadri ◽  
Ryan Mandau ◽  
Mazeyar Parvinzadeh Gashti ◽  
...  
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Body Armor ◽  
Cross Linking ◽  
Soft Body ◽  
Ballistic Performance ◽  
Ultra High Molecular Weight ◽  
Soft Body Armor

Experimental Study of the Characterization of Ultra-High Molecular Weight Polyethylene Fiber Plastic

2013 ◽  
Vol 750-752 ◽  
pp. 840-844 ◽  
Author(s):  
Yao Ke Wen ◽  
Cheng Xu ◽  
Xue Hua Dong ◽  
Shu Wang
Keyword(s):  
Molecular Weight ◽  
Shear Strength ◽  
High Molecular Weight ◽  
Body Armor ◽  
Fiber Direction ◽  
Ballistic Performance ◽  
Uhmwpe Fiber ◽  
Polyethylene Fiber ◽  
Ultra High Molecular Weight

Ultra-high molecular weight polyethylene (UHMWPE) fiber reinforced plastic (UFRP) is an integral part of hard body armor. The intensive study on the material characterization of UFRP can help to understanding the bulletproof mechanism and behind-armor blunt trauma (BABT) well, and thus improve the performance of body armor. The research presented in this paper represents an effort to characterize the properties of UFRP under quasi-static and ballistic loading. The tensile behavior along the fiber direction and through thickness compressive behavior were obtained using an universal material testing machine. Experiments show that the tensile strength and compressive strength of UFRP are approximately 500MPa and 650MPa, respectively. The through thickness shear strength of UFRP was also obtained according to the punch-shear testing, and a set of special clamp was used to clamp the samples. The composite has been found to have a low shear strength. The UFRP was impacted by a 4.8mm diameter spherical fragment with velocity 694m/s~920m/s, to study the ballistic performance. And the height and radius of the deformed conical region on the back face of UFRP were captured using high-speed photography technique. Results show the maximum transient height of the cone is about 3 to 4 times greater than the final height of the cone, and the radius of the cone reaches to 59±7.4mm. The ballistic limit of the 11mm thick UFRP is approximately 800m/s.

Effect of matrix on ballistic performance of soft body armor

2012 ◽  
Vol 94 (9) ◽  
pp. 2690-2696 ◽  
Author(s):  
G. Gopinath ◽  
J.Q. Zheng ◽  
R.C. Batra
Keyword(s):  
Body Armor ◽  
Soft Body ◽  
Ballistic Performance ◽  
Soft Body Armor

A novel method of cross-linking ultra-high-molecular-weight polyethylene to improve wear, reduce oxidation, and retain mechanical properties

2001 ◽  
Vol 16 (2) ◽  
pp. 149-160 ◽  
Author(s):  
Orhun K. Muratoglu ◽  
Charles R. Bragdon ◽  
Daniel O. O'Connor ◽  
Murali Jasty ◽  
William H. Harris
Keyword(s):  
Mechanical Properties ◽  
Molecular Weight ◽  
High Molecular Weight ◽  
Cross Linking ◽  
Novel Method ◽  
Ultra High Molecular Weight

scholarly journals Preparation and Impact Resistance Properties of Hybrid Silicone-Ceramics Composites

2020 ◽  
Vol 10 (24) ◽  
pp. 9098
Author(s):  
Katarzyna Kośla ◽  
Paweł Kubiak ◽  
Marzena Fejdyś ◽  
Karolina Olszewska ◽  
Marcin Łandwijt ◽  
...  
Keyword(s):  
Impact Resistance ◽  
Young Modulus ◽  
Drop Tower ◽  
Body Armor ◽  
Soft Body ◽  
Ballistic Performance ◽  
Composite Armor ◽  
New Type ◽  
The Impact ◽  
Soft Body Armor

This article presents the method of preparation a new type of ballistic armor based on hybrid silicone-ceramic (HSC) composites with considerable flexibility. An experimental study on the ballistic behavior of HSC composites connected with soft body armor is presented against FSP.22 fragments. The effect of Al2O3 ceramics on the ballistic performance of HSC composite was investigated, and the fragmentation resistance process of the composite armor combining the HSC composite and soft aramid insert is clarified. Furthermore, impact resistance tests made with a drop tower which allows for a gravity drop of a mass along vertical guides onto a sample placed with an energy of 5 J were performed. The results presented in this paper show that the HSC composites can be successfully used as a hard body armor. However, they do not exhibit the properties of absorbing the impact energy generated during the drop tower tests. The test results show that the ballistic performance of composite armors is influenced by the hardness and Young modulus of ceramics and soft body armor panel. Additionally, in the article, the results of mechanical properties of silicones used for preparation of composites were presented and compiled to determine their role in the performance of impact protection.

scholarly journals Experimental and Numerical Investigation of the Effect of Projectile Nose Shape on the Deformation and Energy Dissipation Mechanisms of the Ultra-High Molecular Weight Polyethylene (UHMWPE) Composite

Materials ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4208
Author(s):  
Yonghua Shen ◽  
Yangwei Wang ◽  
Zhaopu Yan ◽  
Xingwang Cheng ◽  
Qunbo Fan ◽  
...  
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Energy Absorption ◽  
Specific Energy ◽  
Ballistic Performance ◽  
Specific Energy Absorption ◽  
Ballistic Resistance ◽  
Nose Shape ◽  
Ultra High Molecular Weight ◽  
Uhmwpe Composite

The effect of projectile nose shape on the ballistic performance of the ultra-high molecular weight polyethylene (UHMWPE) composite was studied through experiments and simulations. Eight projectiles such as conical, flat, hemispherical, and ogival nose projectiles were used in this study. The deformation process, failure mechanisms, and the specific energy absorption (SEA) ability were systematically investigated for analyzing the ballistic responses on the projectile and the UHMWPE composite. The results showed that the projectile nose shape could invoke different penetration mechanisms on the composite. The sharper nose projectile tended to shear through the laminate, causing localized damage zone on the composite. For the blunt nose projectile penetration, the primary deformation features were the combination of shear plugging, tensile deformation, and large area delamination. The maximum value of specific energy absorption (SEA) was 290 J/(kg/m2) for the flat nose projectile penetration, about 3.8 times higher than that for the 30° conical nose projectile. Furthermore, a ballistic resistance analytical model was built based on the cavity expansion theory to predict the energy absorption ability of the UHMWPE composite. The model exhibited a good match between the ballistic resistance curves in simulations with the SEA ability of the UHMWPE composite in experiments.

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