Read e-book online Biaxial/Multiaxial Fatigue and Fracture, 6 International PDF

By Andrea Carpinteri, Manuel de Freitas and Andrea Spagnoli (Eds.)

ISBN-10: 0080441297

ISBN-13: 9780080441290

ISBN-10: 0080527817

ISBN-13: 9780080527819

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Extra info for Biaxial/Multiaxial Fatigue and Fracture, 6 International Conference on Biaxial/Multiaxial Fatigue and Fracture

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Figure 3 shows for instance the forces induced by the suspension on the chassis due to the moving of a 6-wheeled vehicle on a training ground at high speed. As a matter of fact, the ratio between forces coming from the vehicle's suspension shows that the loadings are not proportional. The structure is actually subjected to random non-proportional multiaxial loading. These loads are used, during the second step of the multiscale approach, for the overall finite element calculation of the structure (dynamic or quasi-static), resulting in the identification of the potential fatigue damage areas [4].

Distribution of calculated damage - maximum principal stress criterion FATIGUE LIFE CALCULATION FOR THE OLD DESIGN BASED ON THE LOCAL STRESS APPROACH Finite element modelling Fatigue life evaluation of the new design based on local elastic stresses clearly revealed that the notch root is no longer critical. For comparison purposes, the old design as shown in Fig. 9 has also been treated with the local stress approach. Figure 17 shows the plane model before rotating. In accordance with Radaj's suggestions [2, 3] all notches are modelled with radius 1 mm.

1983) Problemes generaux de croissance de fissure. Partie I, approche de I'endommagement. Revue frangaise de Mecanique, 4, 3. D. and Dang Van, K. (1987) Some recently developped aspects of Fracture Mechanics, Nuclear Engineering and Design, 105, 3. , Bignonnet, A. , (1996) Fatigue Design Criterion for Welded Structures, Fatigue Fract. Engng. Mater. , 19, 723-229. , (1995) Multiaxial fatigue of welded joints under in-phase and out-of-phase local strains and stresses. Int. J. Fatigue, 17, 1, 55-70.

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Biaxial/Multiaxial Fatigue and Fracture, 6 International Conference on Biaxial/Multiaxial Fatigue and Fracture by Andrea Carpinteri, Manuel de Freitas and Andrea Spagnoli (Eds.)


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