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The effect of shape and welding on the fatigue behaviour of steel / Mohamed Bachir Ghanem 

Public ISBD Titre : The effect of shape and welding on the fatigue behaviour of steel Type de document : texte imprimé Auteurs : Mohamed Bachir Ghanem, Auteur ; R. Fenn, Directeur de thèse Editeur : Université Brunel Année de publication : 1981 Importance : 59 f. Présentation : ill. Format : 29 cm. Note générale : Mémoire de Master : Metallurgical Quality Control : Angleterre, Université Brunel : 1981 Bibliogr. [5] f. Annexe [75] f Langues : Anglais (eng) Mots-clés : EN8  steel Flat  samples Welded  samples Samples  shaped Fatigue  characteristics Index. décimale : Ms00181 Résumé : The influence of geometric section on the fatigue properties of EN8 steel was investigated by comparing the results obtained in fatigue tests on: a/ Flat samples. b/ Welded samples. c/ Samples shaped to simulate the weld bead profile. It was found that the three sets of samples had significantly different fatigue characteristics. The fatigue loads which the samples could bear increased in the order welded, shaped and flat samples. Attempts were made to correlate these results by evaluating the stress concentration at the weld toe. Although this satisfactorily explained the differences in fatigue behaviour between the flat and the shaped samples it could not account for the results on the welded samples. Subsequent metallographic work using optical and electron optical techniques showed that microstructural changes in the heat affected zone were responsible for the lack of correlation. These observations contradict the results of previous published work. The conclusion drawn from this investigation can provide a basis for a rational desing code for fatigue loaded welded joints. The effect of shape and welding on the fatigue behaviour of steel [texte imprimé] / Mohamed Bachir Ghanem, Auteur ; R. Fenn, Directeur de thèse . - [S.l.] : Université Brunel, 1981 . - 59 f. : ill. ; 29 cm. Mémoire de Master : Metallurgical Quality Control : Angleterre, Université Brunel : 1981 Bibliogr. [5] f. Annexe [75] f Langues : Anglais (eng) Mots-clés : EN8  steel Flat  samples Welded  samples Samples  shaped Fatigue  characteristics Index. décimale : Ms00181 Résumé : The influence of geometric section on the fatigue properties of EN8 steel was investigated by comparing the results obtained in fatigue tests on: a/ Flat samples. b/ Welded samples. c/ Samples shaped to simulate the weld bead profile. It was found that the three sets of samples had significantly different fatigue characteristics. The fatigue loads which the samples could bear increased in the order welded, shaped and flat samples. Attempts were made to correlate these results by evaluating the stress concentration at the weld toe. Although this satisfactorily explained the differences in fatigue behaviour between the flat and the shaped samples it could not account for the results on the welded samples. Subsequent metallographic work using optical and electron optical techniques showed that microstructural changes in the heat affected zone were responsible for the lack of correlation. These observations contradict the results of previous published work. The conclusion drawn from this investigation can provide a basis for a rational desing code for fatigue loaded welded joints.

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité	Spécialité	Etat_Exemplaire
Ms00181	Ms00181	Papier	Bibliothèque centrale	Mémoire de Master	Disponible

Documents numériques

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