Crushing of aluminum closed cell foams: Density and strain rate effects

被引：127

作者：

Hall, IW ^{[1
]}

Guden, M

Yu, CJ

机构：

[1] Univ Delaware, Dept Mech Engn, Newark, DE 19716 USA

[2] Izmir Yuksek Teknol Enstitusu, Izmir, Turkey

[3] Fraunhofer Ctr Delaware, Newark, DE 19716 USA

来源：

SCRIPTA MATERIALIA | 2000年 / 43卷 / 06期

关键词：

Aluminum alloys - Crushing - Density (specific gravity) - Elastic waves - Microscopic examination - Plastic deformation - Plastic flow - Poisson ratio - Powder metals - Strain gages - Strain rate - Titanium compounds;

D O I：

10.1016/S1359-6462(00)00460-7

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The quasi-static and high strain rate compression behavior of an Al closed cell foam was examined in detail. The compression flow stress of the foam was a function of the relative density but exhibits little or no strain rate density. In addition to the flow stress, the energy absorption was also related to the foam density by a similar power law dependency. Metallographic observations of compressively deformed foam confirmed the general processes of progressive cell wall collapse.

引用

收藏

页码：515 / 521

页数：7

相关论文

共 11 条

[1]

ASHBY MF, 1998, METAL FOAMS DESIGN U

[2] Density gradient effects on aluminium foam compression behaviour [J].

Beals, JT ;

Thompson, MS .

JOURNAL OF MATERIALS SCIENCE, 1997, 32 (13) :3595-3600

[3] Dynamic properties of metal matrix composites: a comparative study [J].

Guden, M ;

Hall, IW .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 242 (1-2) :141-152

[4] Compressive deformation and energy absorbing characteristic of foamed aluminum [J].

Han, FS ;

Zhu, ZG ;

Gao, JC .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1998, 29 (10) :2497-2502

[5] COMPRESSIVE STRAIN-RATE TESTS ON 6 SELECTED MATERIALS AT STRAIN RATES FROM 10-3 TO 104 IN/IN/SEC [J].

MAIDEN, CJ ;

GREEN, SJ .

JOURNAL OF APPLIED MECHANICS, 1966, 33 (03) :496-+

[6] Experimental study of energy absorption in a close-celled aluminum foam under dynamic loading [J].

Mukai, T ;

Kanahashi, H ;

Miyoshi, T ;

Mabuchi, M ;

Nieh, TG ;

Higashi, K .

SCRIPTA MATERIALIA, 1999, 40 (08) :921-927

[7] STRUCTURE AND PROPERTIES OF AL-SIC FOAM [J].

PRAKASH, O ;

SANG, H ;

EMBURY, JD .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1995, 199 (02) :195-203

[8] Crushing of axially compressed steel tubes filled with aluminium foam [J].

Seitzberger, M ;

Rammerstorfer, FG ;

Degischer, HP ;

Gradinger, R .

ACTA MECHANICA, 1997, 125 (1-4) :93-105

[9] On the mechanical performance of closed cell Al alloy foams [J].

Sugimura, Y ;

Meyer, J ;

He, MY ;

BartSmith, H ;

Grenstedt, J ;

Evans, AG .

ACTA MATERIALIA, 1997, 45 (12) :5245-5259

[10] THE MECHANICAL RESPONSE OF A 6061-T6 AL/AL2O3 METAL-MATRIX COMPOSITE AT HIGH-RATES OF DEFORMATION [J].

YADAV, S ;

CHICHILI, DR ;

RAMESH, KT .

ACTA METALLURGICA ET MATERIALIA, 1995, 43 (12) :4453-4464