Fatigue Analysis of Welded Components : Designer's Guide to the Structural Hot-Spot Stress Approach

• Record Nr.: UNINA9911004740303321
• Autore: Niemi E
• Pubbl/distr/stampa: Burlington, : Elsevier Science, 2006
• ISBN: 1-84569-666-2
• Descrizione fisica: 1 online resource (56 p.)
• Collana: Woodhead Publishing Series in Welding and Other Joining Technologies
• Altri autori (Persone): FrickeW; MaddoxS J
• Soggetti: Mechanical Engineering; Engineering & Applied Sciences; Industrial & Management Engineering
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di contenuto: Cover; Fatigue Analysis of Welded Components: Designer's guide to the structural hot-spot stress approach (IIW-1430-00); Copyright; CONTENTS; PREFACE; ABSTRACT; 1. INTRODUCTION; 1.1 General; 1.2 Safety aspects; 2. THE STRUCTURAL HOT SPOT STRESS APPROACH TOFATIGUE ANALYSIS; 2.1 Field of application; 2.2 Types of hot spot; 2.3 Definition of the structural stress at a Type 'a' hot spot; 2.4 Use of stress concentration factors; 2.5 Effect of component size on the fatigue resistance; 3. EXPERIMENTAL DETERMINATION OF THESTRUCTURAL HOT SPOT STRESS; 3.1 General; 3.2 Type 'a' hot spots; 3.3 Type 'b' hot spots4. STRUCTURAL HOT SPOT STRESS DETERMINATIONUSING FINITE ELEMENT ANALYSIS; 4.1 General; 4.2 Choice of element type; 4.3 Methods for determination of structural hot spot stress; 4.4 Use of relatively coarse element meshing for analysing Type 'a' hot spots; 4.5 Use of relatively fine element meshing for analysing Type 'a' hot spots; 4.6 Modelling fillet welds in shell element models for analysing Type 'a' hot spots; 4.7 Analysis of Type 'b' hot spots; 5. PARAMETRIC FORMULAE; 5.1 Misalignment; 5.2 Structural discontinuities; 6. STRUCTURAL HOT SPOT S-N CURVES; 6.1 General principles6.2 Recommended S-N curves; 7. CASE STUDY 1: BOX BEAM OF A RAILWAY WAGON; 7.1. Introduction; 7.2 Materials and methods; 7.3 Results; 7.4 Discussion and conclusions; 8. CASE STUDY ; 2: HATCH CORNER DESIGN FORCONTAINER SHIPS; 8.1 Introduction; 8.2 Materials and methods; 8.3 Fatigue assessment; 8.4 Conclusion; 9. REFERENCES; APPENDIX 1: SYMBOLS; APPENDIX 2: RECOMMENDATIONS FOR ENHANCEDACCURACY IN STRESS DETERMINATION; APPENDIX 3: COMMENTARY ON THE S-N CURVES WITHREFERENCE TO VARIABLE AMPLITUDE LOADING; APPENDIX 4: HOT SPOT S-N CURVES FOR WELDEDALUMINIUM COMPONENTS
• Sommario/riassunto: This report provides background and guidance on the use of the structural hot spot stress approach to the fatigue design of welded components and structures. It complements the IIW recommendations for 'Fatigue Design of Welded Joints and Components' and extends the information provided in the IIW recommendations on 'Stress Determination for Fatigue Analysis of Welded Components'. This approach is applicable to cases of potential fatigue cracking from the weld toe. It has been in use for many years in the context of tubular joints. The present report concentrates on its extension to structures