Inhaltszusammenfassung

Abstract Fatigue of engineering structures is an issue from an engineering design point. The lifetime of materials being subject to repeated mechanical loads is limited. Criticality of failure increases with increasing age and the uncertainty of operational loads applied. It is a challenging aim to use a metallic material’s microstructure characterizing nondestructive testing (NDT) parameter for scanning a component’s critical surface to more realistically characterize damage and enhance the ...Abstract Fatigue of engineering structures is an issue from an engineering design point. The lifetime of materials being subject to repeated mechanical loads is limited. Criticality of failure increases with increasing age and the uncertainty of operational loads applied. It is a challenging aim to use a metallic material’s microstructure characterizing nondestructive testing (NDT) parameter for scanning a component’s critical surface to more realistically characterize damage and enhance the assessment of the component’s residual life in terms of inspection time. The physically based fatigue life evaluation method (PHYBAL) is a short-time procedure for the evaluation of fatigue data based on a small number of fatigue tests performed on unnotched specimens only. This method significantly reduces the effort for experimentation in terms of time and cost by around 90 % and inhibits remarkable scientific as well as economic advantages. This paper highlights the high capability of PHYBAL combined with thermography measurements and will lead to a better understanding of fatigue mechanisms.» weiterlesen» einklappen

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DDC Sachgruppe:
Ingenieurwissenschaften