Analysis of contact fatigue coupled with geometry and material nonlinearities by Theory of critical distances
Апстракт
The contact fatigue is a localized phenomenon that occurs in highlystressed local zone of the material under the loaded contact region and as such ishighly nonlinear problem. This phenomenon exists in almost all real mechanicalsystems with contact strains coupled with other sources of nonlinear behaviour.The improvements of existing procedures and methods for standard calculationof contact fatigue have a potential to give significant contribution to increaseaccuracy of calculation of life assessment, reliability and efficiency of complexmechanical systems. This paper gives the basic explanation of the Theory ofcritical distances and its application on direct estimation of fatigue crackinitiation in contact zones. Analysis of contact fatigue when the contact zonesare subjected to additional nonlinearities such as geometry manufacturingdeviations, geometry microscale-damages or nonlinear material characteristicsare presented in detail. Few different real multi-nonlinear problems are used... foranalysis performing. The benefits of presented approach are discussed by detailanalysis of the obtained results, and could be based on the increasing accuracyof contact fatigue prediction considering all existing nonlinearities in loadedcontact zones of complex mechanical systems.
Кључне речи:
contact / fatigue / coupled nonlinearities / Finite Element Analysis / Theory of Critical DistancesИзвор:
2nd Conference on Nonlinearity, Belgrade, 27-47Колекције
Институција/група
Inovacioni centarTY - CONF AU - Atanasovska, Ivana AU - Momčilović, Dejan B. UR - https://machinery.mas.bg.ac.rs/handle/123456789/7497 AB - The contact fatigue is a localized phenomenon that occurs in highlystressed local zone of the material under the loaded contact region and as such ishighly nonlinear problem. This phenomenon exists in almost all real mechanicalsystems with contact strains coupled with other sources of nonlinear behaviour.The improvements of existing procedures and methods for standard calculationof contact fatigue have a potential to give significant contribution to increaseaccuracy of calculation of life assessment, reliability and efficiency of complexmechanical systems. This paper gives the basic explanation of the Theory ofcritical distances and its application on direct estimation of fatigue crackinitiation in contact zones. Analysis of contact fatigue when the contact zonesare subjected to additional nonlinearities such as geometry manufacturingdeviations, geometry microscale-damages or nonlinear material characteristicsare presented in detail. Few different real multi-nonlinear problems are used foranalysis performing. The benefits of presented approach are discussed by detailanalysis of the obtained results, and could be based on the increasing accuracyof contact fatigue prediction considering all existing nonlinearities in loadedcontact zones of complex mechanical systems. C3 - 2nd Conference on Nonlinearity, Belgrade T1 - Analysis of contact fatigue coupled with geometry and material nonlinearities by Theory of critical distances EP - 47 SP - 27 UR - https://hdl.handle.net/21.15107/rcub_machinery_7497 ER -
@conference{ author = "Atanasovska, Ivana and Momčilović, Dejan B.", abstract = "The contact fatigue is a localized phenomenon that occurs in highlystressed local zone of the material under the loaded contact region and as such ishighly nonlinear problem. This phenomenon exists in almost all real mechanicalsystems with contact strains coupled with other sources of nonlinear behaviour.The improvements of existing procedures and methods for standard calculationof contact fatigue have a potential to give significant contribution to increaseaccuracy of calculation of life assessment, reliability and efficiency of complexmechanical systems. This paper gives the basic explanation of the Theory ofcritical distances and its application on direct estimation of fatigue crackinitiation in contact zones. Analysis of contact fatigue when the contact zonesare subjected to additional nonlinearities such as geometry manufacturingdeviations, geometry microscale-damages or nonlinear material characteristicsare presented in detail. Few different real multi-nonlinear problems are used foranalysis performing. The benefits of presented approach are discussed by detailanalysis of the obtained results, and could be based on the increasing accuracyof contact fatigue prediction considering all existing nonlinearities in loadedcontact zones of complex mechanical systems.", journal = "2nd Conference on Nonlinearity, Belgrade", title = "Analysis of contact fatigue coupled with geometry and material nonlinearities by Theory of critical distances", pages = "47-27", url = "https://hdl.handle.net/21.15107/rcub_machinery_7497" }
Atanasovska, I.,& Momčilović, D. B..Analysis of contact fatigue coupled with geometry and material nonlinearities by Theory of critical distances. in 2nd Conference on Nonlinearity, Belgrade, 27-47. https://hdl.handle.net/21.15107/rcub_machinery_7497
Atanasovska I, Momčilović DB. Analysis of contact fatigue coupled with geometry and material nonlinearities by Theory of critical distances. in 2nd Conference on Nonlinearity, Belgrade.:27-47. https://hdl.handle.net/21.15107/rcub_machinery_7497 .
Atanasovska, Ivana, Momčilović, Dejan B., "Analysis of contact fatigue coupled with geometry and material nonlinearities by Theory of critical distances" in 2nd Conference on Nonlinearity, Belgrade:27-47, https://hdl.handle.net/21.15107/rcub_machinery_7497 .