Simplified elastic-plastic fatigue analysis of smooth structuresFunded under: PRE-NUSAFECS C
The calculation of the structural response of engineering structures subjected to high cyclic strain can be simplified by using a plastic strain range enhancement factor K(e). Plastic behaviour of simple academic and practical structures is investigated to identify the basic features which determine the factor K(e): (i) geometry of the structure; (ii) type of loading; (iii) load level; (iv) material behaviour. The factor K(e) is quantified for different geometries and types of loading. Parameter studies are performed to quantify the effects of load level, material models and hardening characteristics. The background of some factors K(e) established in Nuclear Design Codes or proposed in the literature is reviewed. Emphasis is laid on global effects rather than localised effects due to notches and fillets. Therefore structures exhibiting geometric stiffness discontinuities are considered to be smooth in the sense that the specific geometry of the transition between parts of different stiffnesses is disregarded.
Bibliographic Reference: EUR 16097 EN (1995) 178 pp., FS, ECU 18.50
ISBN: ISBN 92-826-9833-5
Record Number: 199510266 / Last updated on: 1995-03-21
Original language: en
Available languages: en