Estimation of load history by residual stress relaxation

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dc.identifier.uri Breidenstein, Bernd Denkena, Berend Mörke, Tobias Hockauf, R. 2016-12-16T07:23:13Z 2016-12-16T07:23:13Z 2015
dc.identifier.citation Breidenstein, B.; Denkena, B.; Mörke, T.; Hockauf, R.: Estimation of load history by residual stress relaxation. In: Procedia CIRP 37 (2015), S. 236-241. DOI:
dc.description.abstract Focusing on the impact of machining on structural integrity and fatigue life of components the surface and subsurface properties are of major importance. It is well known that machining induced residual stresses have a significant influence on the fatigue life of a component. Due to thermal and mechanical loads during a product's life cycle these stresses relax, which is undesired in most cases. The presented approach utilizes relaxations due to mechanical load to estimate the load history of a component. It is intended to qualify residual stress relaxation as a load sensor and to determine the limits of this approach. Therefore, it is demonstrated, how the residual stress state induced by turning of AISI 1060 determines the critical load causing relaxation. Subsequently, the influence of load stress and the number of load cycles is used to build up a model. The presented approach accesses load information from mass production components. Until now, this information is typically limited to prototypical developments or high price parts equipped with external sensors. One application of life cycle data is condition-based maintenance. This technology allows to extend service intervals and prevent a premature replacement of undamaged components. Thus, cost and resource efficiency are augmented. It is demonstrated that based on the changes of residual stress, possible mechanical loads and number of load cycle combinations can be identified. The changes are used to estimate the experienced loads. eng
dc.description.sponsorship DFG/CRC/653
dc.language.iso eng
dc.publisher Amsterdam : Elsevier
dc.relation.ispartof 4th CIRP Global Web Conference, CIRPe 2015, 29th September - 1st October 2015
dc.relation.ispartofseries Procedia CIRP 37 (2015)
dc.rights CC BY-NC-ND 4.0
dc.subject Fatigue eng
dc.subject Residual stress eng
dc.subject Surface integrity eng
dc.subject Fatigue of materials eng
dc.subject Residual stresses eng
dc.subject Stress relaxation eng
dc.subject Stresses eng
dc.subject Condition based maintenance eng
dc.subject Load information eng
dc.subject Residual stress state eng
dc.subject Resource efficiencies eng
dc.subject Service intervals eng
dc.subject Subsurface properties eng
dc.subject Surface integrity eng
dc.subject Thermal and mechanical loads eng
dc.subject Life cycle eng
dc.subject.ddc 500 | Naturwissenschaften ger
dc.title Estimation of load history by residual stress relaxation
dc.type article
dc.type conferenceObject
dc.type Text
dc.relation.issn 22128271
dc.bibliographicCitation.volume 37
dc.bibliographicCitation.firstPage 236
dc.bibliographicCitation.lastPage 241
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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