FATIGUE BEHAVIOR AND DAMAGE MONITORING OF ULTRASONIC WELDED HYBRID JOINTS

被引：0

作者：

Huxhold, Stefan ^{[1
]}

Balle, Frank ^{[1
]}

Wagner, Guntram ^{[1
]}

Eifler, Dietmar ^{[1
]}

机构：

[1] Univ Kaiserslautern, Inst Mat Sci & Engn WKK, D-67653 Kaiserslautern, Germany

来源：

PROCEEDINGS OF THE 13TH INTERNATIONAL CONFERENCE ON ALUMINUM ALLOYS (ICAA13) | 2012年

关键词：

Ultrasonic welding; Hybrid joints; AA5754; CFRP; Fatigue; Electrical resistance;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The need of hybrid joints especially for joints between light metals and CFRP-composites is strongly increased in the last years. Ultrasonic metal welding is one promising technology to join aluminum alloys to carbon fiber reinforced polymers (CFRP). These hybrid joints can be realized by thermal softening and mechanical replacing the polymer out of the welding zone as a result of the ultrasonic shear oscillation. This allows a direct contact between the aluminum and the carbon fibers. Due to the electrical conductivity of the carbon fibers and the realized metal/fiber contact it is possible to use the hybrid joints as their own fatigue damage sensor and to describe the actual fatigue state of the welds. Additionally to standard experimental data, the change in the electrical resistivity can be monitored during the fatigue tests. Load-increase as well as constant amplitude tests of ultrasonically welded aluminum/CFRP-joints will be presented and discussed.

引用

页码：505 / 510

页数：6

共 6 条

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Wagner, Guntram ;

Eifler, Dietmar .

ADVANCED ENGINEERING MATERIALS, 2009, 11 (1-2) :35-39

[3]

Balle F, 2009, ALUMINUM ALLOYS: FABRICATION, CHARACTERIZATION AND APPLICATIONS II, P191

[4]

Graff K., 2005, New Developments in Advanced Welding, P241, DOI 10.1533/9781845690892.241

[5]

Huxhold S., 2011, MAT PROCESSING ENERG, V1, P743

[6]

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