Dynamic response of laminated aluminum plate under falling hammer impact

被引：0

作者：

Zhou Y. ^{[1
,2
]}

Zhao Z. ^{[1
,2
]}

Ren J. ^{[1
,2
]}

Bian P. ^{[3
]}

Lu T. ^{[1
,2
]}

机构：

[1] State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing

[2] Mi It Key Laboratory of Multifunctional Lightweight Materials and Structures, Nanjing University of Aeronautics and Astronautics, Nanjing

[3] Application Engineering Center, China National Heavy Duty Truck Group Co.，Ltd., Jinan

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2022年 / 41卷 / 15期

关键词：

dynamic response; falling hammer impact; finite element simulation; laminated aluminum plate;

D O I：

10.13465/j.cnki.jvs.2022.15.030

中图分类号：

学科分类号：

摘要：

As a new type of anti-impact structure, laminated metal plates receive more and more attentions at home and abroad. Here, firstly, through falling hammer impact tests, deformation of laminated aluminum plate and its effects on acceleration of impact object were studied, and similarities and differences between laminated aluminum plate and single- layer aluminum plate with the same area density were compared. Then, the dynamic nonlinear finite element method was used to simulate falling hammer impact tests of laminated aluminum plate, and the simulation results agreed well with actual test ones. The results showed that under the same impact load, compared with single-layer plate, multi-layer laminated plate can greatly reduce peak acceleration，have better cushioning effect on hammer head and better protect it ； the maximum displacement of laminated plate at impact point is larger than that of single-layer plate with the same area density，and the difference gradually increases with increase in total thickness or number of laminations ； interlayer friction coefficient of laminated plate significantly affects its back convex displacement ； when friction coefficient is very small or very large, its back convex displacement decreases. © 2022 Chinese Vibration Engineering Society. All rights reserved.

引用

页码：233 / 243and286

共 14 条

[1] CAO Junshuai, REN Chuanbo, SUN Zhichuan, Et al., The analysis of pedestrian damage in multi-angle pedestrian- vehicle collisions [ J ], Journal of Shandong University of Technology(Natural Science Edition), 35, 1, pp. 33-36, (2021)
[2] JIANG Yang, HUANG Haibo, A study on multiple factors affecting pedestrian injury in pedestrian-car collision accident [J], China Safety Science Journal, 27, 3, pp. 95-99, (2017)
[3] LI Dan, LI Pingfei, LIAO Wenjun, Et al., Effects of pedestrian motion state on pedestrian injury in human-vehicle collision [J], Science Technology and Engineering, 19, 20, pp. 383-388, (2019)
[4] WANG Lizhen, FAN Yubo, The biomechanics of injury and prevention [ J ], Advances in Mechanics, 50, 1, pp. 124-168, (2020)
[5] LI S F, XIAO Z, ZHANG Y F, Et al., Impact analysis of a honeycomb-filled motorcycle helmet based on coupled head- helmet modelling [ J ], International Journal of Mechanical Sciences, 199, (2021)
[6] Tao RAN, SONG Gang, XIE Wenju, Et al., Research on crashworthiness and collision compatibility of automobile body [J], Automobile Applied Technology, 12, pp. 34-36, (2019)
[7] AHMAD M S, LANGDON G S, NURICK G N, Et al., A study on the response of single and double circular plates subjected to localized blast loading [ J ], Latin American Journal of Solids and Structures, 15, 11, (2018)
[8] LIU Yanhong, CHEN Changhai, ZHU Xi, Et al., Numerical analysis of the blast-resistant mechanisms of multilayered thin plates under close-range air blast load [ J ], Journal of Ship Mechanics, 7, pp. 821-833, (2014)
[9] REZASEFAT M, MOSTOFI T M, OZBAKKALOGLU T., Repeated localized impulsive loading on monolithic and multi- layered metallic plates [ J ], Thin-Walled Structures, 144, (2019)
[10] HU Jing, WANG Lujun, HU Ang, Anti-impact performance of TC4 thin plate with different laminated sequences [ J ], Journal of Civil Aviation University of China, 39, 1, pp. 52-58, (2021)

← 1 2 →