Abstract
In the present paper research work is presented combining material related research, weld fabrication related research and research in the field of numerical analysis of welded joint performance. Elements belonging to this extensive combination are mechanical testing, fracture mechanics testing of small scale and full thickness specimens, component testing including engineering defect assessment and numerical modelling using finite element method. Examples are given for each of the above mentioned elements. Mechanische Untersuchungen an schmelzgeschweißten Verbindungen beinhalten einerseits werkstoffbezogene Untersuchungen zur Optimierung der mechanisch-technologischen und bruchmechanischen Eigenschaften schweißbarer Stähle. Außerdem gehört die Prüfung entsprechender Schweißgüter dazu. Beides erfolgt unter Berücksichtigung der schweißtechnischen Fertigungsbedingungen sowie der Randbedingungen der verschiedenen Prüfverfahren. Experimentelle wie auch numerische Untersuchungen führen – unter Berücksichtigung der mechanischen Inhomogenität – zur Optimierung des Beanspruchungsverhaltens von Schweißverbindungen.
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