Effect of core materials on the low-velocity impact behaviour of trapezoidal corrugated sandwich panels

被引：11

作者：

Rong, Yu ^{[1
,2
]}

Luo, Wei ^{[3
]}

Liu, Jingxi ^{[1
,2
]}

Shen, Zhiyuan ^{[1
,2
]}

He, Wentao ^{[4
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Naval Architecture & Ocean Engn, Wuhan, Peoples R China

[2] Collaborat Innovat Ctr Adv Ship & Deep Sea Explor, Shanghai, Peoples R China

[3] China Ship Dev & Design Ctr, Wuhan, Peoples R China

[4] Ocean Univ China, Coll Engn, Qingdao, Peoples R China

来源：

INTERNATIONAL JOURNAL OF CRASHWORTHINESS | 2020年 / 25卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Sandwich panel; trapezoidal corrugated core; low-velocity impact; CFRP; energy absorption; DYNAMIC-RESPONSE; Y-FRAME; BEAMS;

D O I：

10.1080/13588265.2019.1616891

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A combined experimental study and numerical simulation is performed to investigate the effect of core materials on low-velocity impact behaviour of sandwich panels. Dynamic responses of three types of corrugated sandwich panels with the same geometric configurations, which consist of the same CFRP (carbon fibre-reinforced plastic) face sheets, but the different corrugated cores including aluminium alloy, stainless steel and CFRP are investigated in the present research. Reasonably good agreement has been achieved by comparing impact force, energy absorption and failure modes between experimental results and numerical simulation predictions. The present research reveals that fracture stress and fracture strain of the core material have a significant influence on the performances of the sandwich panels under low-velocity local impact, sandwich panels with stainless steel core has the largest capability of load carrying and energy absorption. Conclusions presented in the present research would be used in the development of neoteric lightweight multifunctional smart structures.

引用

页码：505 / 516

页数：12

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