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Since the internal condition directly influences the calculated component resistance by using cast steel, the requirement of a quality grade already has to be determined during the design and planning phase. However, there is currently no decision-making on the selection of a quality level depending on the load. Therefore, two design concepts are developed for the load-bearing capacity of steel castings depending on the grades.
FehlerCast steel --- brittle fracture --- Bemessung --- Sprödbruch --- vorwiegend ruhende Beanspruchung --- defects --- discontinuities --- static stress --- Stahlguss --- dimension --- Ungänzen
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This work presents a design approach that links fatigue resistance of cast steel component to permissible defect sizes. It is based on fractures mechanics, is in line with experiences of the last 60 years and validated by extensive experimental as well as numerical investigations on different scales and under consideration of real casting defects. By following established assessment methods, the design concept is adapted to practical building applications.
Civil engineering, surveying & building --- Stahlbau --- Stahlguss --- Werkstoff --- Ermüdung --- Ermüdungsfestigkeit --- Gussfehler --- Ungänzen --- Bruchmechanik --- experimentelle u numerische Untersuchungen --- Steel construction --- steel casting --- material --- fatigue --- casting defects --- fracture mechanics --- experimental and numerical investigations
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