Experimental Estimation of Energy Absorbed and Impact Strength of Kevlar/Basalt-Epoxy Interwoven Composite Laminate Added with Al2O3 Nanoparticles after High-Velocity Bullet Impact

被引:4
作者
Jensin Joshua, J. [1 ]
Singh, Dalbir [1 ]
Venkatanarayanan, P. S. [1 ]
Snehit, Ch. Sai [1 ]
Bipin Sai Eswar, A. [1 ]
Desta, Melaku [2 ]
机构
[1] Hindustan Inst Technol & Sci, Sch Aeronaut Sci, Chennai, India
[2] Addis Ababa Sci & Technol Univ, Coll Elect & Mech Engn, Dept Mech Engn, Addis Ababa, Ethiopia
来源
JOURNAL OF ENGINEERING | 2023年 / 2023卷
关键词
MECHANICAL-PROPERTIES; PARTICLE-SIZE; BEHAVIOR; BASALT;
D O I
10.1155/2023/2830575
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The use of composites has increased exponentially in most industries, especially in the aerospace industry; the usage of composites has increased by almost 40% in the last 15 years. Aerospace components are often subject to high-impact loads, so it is important to use impact-resistant materials. Kevlar is known for its high-impact resistance and is commonly used as a fiber with various resins to achieve the desired properties. This paper mainly focuses on weaving Kevlar with basalt fiber in plain weave type by the traditional handloom weaving method. The epoxy resin, along with the harder, is then mixed with the aluminum oxide nanoparticles (Al2O3) in different percentages [1%-KB1, 3%-KB2, and 5%-KB3] to form the matrix. The laminate fabricated is then subjected to the high-velocity bullet impact of around 250 m/s. A steel hemispherical head projectile was used in the testing, and it was found to be penetrated through all the specimens making holes. The impact strength for all the different specimens was then estimated by calculating the bullet damage area and energy absorbed. The plate added with 3% Al2O3 nanoparticle was found to have improved impact strength when compared with the other two specimens. This plate can be used for bulletproof and other high-velocity impact applications.
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页数:11
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