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PRODID:-//PHD in Industrial Engineering - ECPv6.15.19//NONSGML v1.0//EN
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X-WR-CALNAME:PHD in Industrial Engineering
X-ORIGINAL-URL:https://academics.dii.unipd.it/phd
X-WR-CALDESC:Events for PHD in Industrial Engineering
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DTSTART:20250101T000000
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BEGIN:VEVENT
DTSTART;TZID=UTC:20260331T080000
DTEND;TZID=UTC:20260331T170000
DTSTAMP:20260408T232121
CREATED:20160316T114710Z
LAST-MODIFIED:20260302T163833Z
UID:610-1774944000-1774976400@academics.dii.unipd.it
SUMMARY:Advanced methods for fatigue design
DESCRIPTION:Course contentsThis course provides an introduction to the fatigue assessment of mechanical components in the presence of cracks or notches. It covers the derivation of stress fields ahead of cracks and notches using the Airy stress function and the complex potential function method (Kolosov and Muskhelishvili). Students will explore a case study on sharp V-notches under in-plane loading\, focusing on the Lazzarin-Tovo analytical derivation of local stress fields based on complex potential functions and a comparison with Williams’ solution. Furthermore\, the course includes the definition of Notch Stress Intensity Factors (NSIFs) and an introduction to local approaches based on the NSIF concept\, specifically the averaged strain energy density (SED) and the peak stress method (PSM). Finally\, these concepts culminate in the practical application of local approaches to the fatigue strength assessment of mechanical components by means of Finite Element (FE) analyses using the Ansys FE code. \nLearning goalsIn this course\, students will learn the analytical basis of notch stress analysis. They will explore how to apply both standard methods (e.g.\, nominal stress) and local approaches (NSIF\, SED\, PSM) for the fatigue strength assessment of welded joints. Finally\, students will gain practical experience in performing linear elastic structural FE analyses using Ansys. \nSuggested readings\nSadd M. H. Elasticity. Theory\, Applications and Numerics. Elsevier; 2004.\nLazzarin P.\, Tovo R. A unified approach to the evaluation of linear elastic stress fields in the neighborhood of cracks and notches\, Int. J. Fract. 78 (1996) 3–19.\nAnderson T. L. Fracture Mechanics. Fundamentals and Applications. CRC Press; 1995.\nLazzarin P.\, Zambardi R. A finite-volume-energy based approach to predict the static and fatigue behavior of components with sharp V-shaped notches\, Int. J. Fract. 112 (2001) 275–298.\nMeneghetti G.\, Lazzarin P. Significance of the elastic peak stress evaluated by FE analyses at the point of singularity of sharp V-notched components\, Fatigue Fract. Eng. Mater. Struct. 30 (2007) 95–106.\nRadaj D\, Vormwald M. Advanced methods of fatigue assessment. Springer; 2012.
URL:https://academics.dii.unipd.it/phd/event/politics-seminar/
LOCATION:Sede-V\, via Venezia 1\, Padova\, Padova\, 35131\, Italy
CATEGORIES:Event
ATTACH;FMTTYPE=image/png:https://academics.dii.unipd.it/phd/wp-content/uploads/sites/58/2026/03/CDII-fatigue-1-scaled.png
ORGANIZER;CN="PhD Course in Industrial Engineering":MAILTO:dottorato.dii@unipd.it
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