Efficient frequency-domain based fatigue life estimation of spot welds in vehicle components
Autor: | Milan Zigo, Gerhard Kepplinger, Eray Arslan, Werner Mack |
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Rok vydání: | 2019 |
Předmět: |
0209 industrial biotechnology
business.industry Computer science Computation General Engineering Base (geometry) Automotive industry 02 engineering and technology Automotive engineering Stress (mechanics) 020303 mechanical engineering & transports 020901 industrial engineering & automation 0203 mechanical engineering Frequency domain In vehicle business Spot welding |
Zdroj: | Forschung im Ingenieurwesen. 83:921-931 |
ISSN: | 1434-0860 0015-7899 |
DOI: | 10.1007/s10010-019-00345-6 |
Popis: | The estimation of the damage and fatigue life of spot welds in vehicle components with hundreds or thousands thereof within reasonable computation time is a challenge even for recent computers in automotive industry. Hence, an advanced procedure in the frequency-domain is proposed. Whereas the general frequency-domain approach is well-established, it nevertheless becomes efficient for a large number of spot welds only with a package of measures. Among others, a two-scale FE-method using a pre-processed data base for various spot weld/sheet geometries and specified basic load cases, application of the cutting-plane method, and a priori stress estimations to reduce the number of spot welds to be checked completely are suggested. By the example of a tank of a cooling medium in a vehicle it is shown that the proposed algorithm may reduce the computation time as compared to time-domain calculations substantially. |
Databáze: | OpenAIRE |
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