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Joining Technology in Automobile Construction

Joining Technology in Automobile Construction

Various joining methods are used in vehicles, and all must be characterized mechanically. Chassis construction mainly involves linear joining; here the focus is on the life expectancy of the component and/or the join. For the body shell, linear, spot and laminar joining, or various combinations of these, are used. The emphasis here is on dimensioning components to be crash-proof, but life expectancy must not be neglected. 

In addition to life expectancy and crash safety, stiffness is an important criterion when engineering both body shell and chassis. The mechanical characteristics of joins must be determined under static, dynamic and impact dynamic loading. The following table contains a few well-known specimen geometries used for characterizing joins. The data obtained from the tests (quasi-static tensile test, fatigue tests, dynamic impact tests) can be used for quality assurance, as input for life expectancy estimates or as input for crash calculations. If specimens resembling components are employed, they can be used to validate life expectancy or crash models. 

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