Stress wave propagation characteristics and impact resistance of laminated composites under impact loading

被引：15

作者：

Wang, Xidong ^{[1
]}

Yuan, Meini ^{[1
]}

Miao, Yuzhong ^{[1
]}

Wei, Zeyuan ^{[1
]}

机构：

[1] North Univ China, Coll Mechatron Engn, Taiyuan 030051, Shanxi, Peoples R China

来源：

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2024年 / 31卷 / 08期

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

Laminated composites; propagation characteristics of stress wave; energy attenuation; wave differential equation; PLASTIC-DEFORMATION; LAYERED COMPOSITE; BRITTLE MATERIALS; COMPRESSION; DISPERSION;

D O I：

10.1080/15376494.2022.2143602

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

SHPB simulation of TC4/2024AL/TC4, TC4/TA2/TC4, and TC4/Al3Ti/TC4 laminated composites under different impact velocities of strike bar was carried out by ANSYS/LS-DYNA. Then stress distribution of the laminated composites under impact loading was theoretically analyzed according to the one-dimensional stress wave theory. Influencing factors of stress distribution and energy attenuation were emphatically analyzed, including impact velocities of the strike bar, wave impedance of interlayer, and plastic deformation. The results show that, when the impact velocity is determined, impact resistance is negatively correlated with the impedance of the interlayer. Under certain conditions, impact resistance is negatively correlated with impedance of interlayer, and positively correlated with impact velocity. In addition, the accumulation of plastic deformation could make residual stress distribution along the position coordinate axis shows a trend of gradual increase from both sides to the middle position.

引用

页码：1822 / 1831

页数：10

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