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http://dx.doi.org/10.3795/KSME-A.2003.27.6.946

High Cycle Fatigue Damage under Multiaxial Random Loading through Dynamic Simulation for an Automotive Sub-Frame  

Lee, Hak-Joo (한국기계연구원)
Kang, Jae-Youn (한국기계연구원)
Choi, Byung-Ick (한국기계연구원)
Kim, Joo-Sung (쌍용자동차(주) CAE팀)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.27, no.6, 2003 , pp. 946-953 More about this Journal
Abstract
A FEM-based analytical approach was used to evaluate the multiaxial high cycle fatigue damage of an automotive sub-frame. Elastic Multi Body Simulation (MBS) has been applied in order to determine the multiaxial load histories. The stresses due to these loads have been given by FE computation. These results have been used as the input for the multiaxial fatigue analysis. For the assessment of multiaxial high cycle fatigue damage, the signed von Mises, the signed Tresca, the absolute maximum principal stress and critical plane methods have been employed. In addition, the biaxiality ratio, a$\sub$e/, the absolute maximum principal stress, $\sigma$$\sub$p/ and the angle, $\phi$$\sub$P/, between $\sigma$$\sub$1/ and the local x-axis, have been calculated to evaluate the stress state at each node.
Keywords
Fatigue Damage; Multiaxial Loads; Critical Plane; Equivalent Stress; High Cycle Fatigue;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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