Response of metallic cylindrical sandwich shells subjected to projectile impact-Experimental investigations

被引：35

作者：

Jing, Lin ^{[1
,2
]}

Wang, Zhihua ^{[1
]}

Zhao, Longmao ^{[1
]}

机构：

[1] Taiyuan Univ Technol, Inst Appl Mech & Biomed Engn, Taiyuan 030024, Peoples R China

[2] Natl Univ Singapore, Dept Mech Engn, Impact Mech Lab, Singapore 117576, Singapore

来源：

COMPOSITE STRUCTURES | 2014年 / 107卷

关键词：

Sandwich shell; Metallic foam; Dynamic response; Deformation/failure mode; DYNAMIC-RESPONSE; FOAM CORES; CORRUGATED CORE; Y-FRAME; BEAMS; BLAST; PANELS; COMPOSITE; FAILURE; PLATES;

D O I：

10.1016/j.compstruct.2013.07.011

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The dynamic response of peripherally clamped cylindrical sandwich shells with two aluminum face-sheets and an aluminum foam core has been experimentally investigated using an improved loading technique. The resistance to impact loading is assessed by using the permanent transverse deflection at central point of back face-sheet of the sandwich shell. The comprehensive deformation and failure modes of specimens were classified and analyzed in term of face-sheets and core, and then the failure mode map of specimens was presented. Effects of impulse, face-sheet thickness, core thickness and relative density of core on the resistance to impact loading were discussed in detail. Deformation mechanism of sandwich shells subjected to projectile impact was explored based on the results of strain gauges adhered on the face-sheets. Results indicate that both the deformation/failure modes and back face-sheet deflection of sandwich shells are sensitive to impulse and their geometrical configurations, and the curved sandwich structures have an evident advantage on the resistance to deform, to the flatted sandwich panels. The experimental results have important reference value to the further study and engineering application of metallic sandwich structures. (C) 2013 Published by Elsevier Ltd.

引用

页码：36 / 47

页数：12

共 33 条

[1]

Abrate Serge., 1998, IMPACT COMPOSITE STR, DOI 10.1017/CBO9780511574504

[2] Dynamic response of metallic lattice sandwich structures to impulsive loading [J].

Cui, Xiaodong ;

Zhao, Longmao ;

Wang, Zhihua ;

Zhao, Han ;

Fang, Daining .

INTERNATIONAL JOURNAL OF IMPACT ENGINEERING, 2012, 43 :1-5

[3]

Fatt MSH, 2012, COMPOS STRUCT, DOI DOI 10.1016/J.C0MPSTRUCT.2012.05.01

[4]

Fleck NA, 2004, J APPL MECH, V71, P1

[5] Low-velocity impact failure of aluminium honeycomb sandwich panels [J].

Foo, C. C. ;

Seah, L. K. ;

Chai, G. B. .

COMPOSITE STRUCTURES, 2008, 85 (01) :20-28

[6]

Gibson L. J., 1997, CELLULAR SOLIDS STRU, V2nd ed

[7]

Jing L, 2013, EXPT STUDY DYN UNPUB

[8] Dynamic response of cylindrical sandwich shells with metallic foam cores under blast loading-Numerical simulations [J].

Jing, Lin ;

Wang, Zhihua ;

Zhao, Longmao .

COMPOSITE STRUCTURES, 2013, 99 :213-223

[9] The dynamic response of sandwich beams with open-cell metal foam cores [J].

Jing, Lin ;

Wang, Zhihua ;

Ning, Jianguo ;

Zhao, Longmao .

COMPOSITES PART B-ENGINEERING, 2011, 42 (01) :1-10

[10] Blast resistance of sandwich-walled hollow cylinders with graded metallic foam cores [J].

Liu, Xinrang ;

Tian, Xiaogeng ;

Lu, Tian Jian ;

Zhou, Daqing ;

Liang, Bin .

COMPOSITE STRUCTURES, 2012, 94 (08) :2485-2493

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