@article{Edel2001, author = {Edel, Karl-Otto}, title = {Effects of securing temperatures on crack propagation in railway rails}, series = {In: Rail international Vol. 32 (2001), 36-42}, journal = {In: Rail international Vol. 32 (2001), 36-42}, issn = {0020-8442}, pages = {36 -- 42}, year = {2001}, language = {en} } @inproceedings{BoudnitskiEdelSchumann2003, author = {Boudnitski, Grigori and Edel, Karl-Otto and Schumann, Lars}, title = {Die Bewertung der Rissausbreitung an Federstellen in Zungenschienen}, series = {In: 35. Tagung des DVM-Arbeitskreises Bruchvorg{\"a}nge, 18. und 19. Februar 2003 in Freiberg : Themenschwerpunkt: Fortschritte der Bruch- und Sch{\"a}digungsmechanik, Simulationsmethoden der Bruchmechanik. - Berlin : DVM, 2003. - (Deutscher Verband f{\"u}r Materialforschung und -pr{\"u}fung: DVM-Bericht ; 235)}, booktitle = {In: 35. Tagung des DVM-Arbeitskreises Bruchvorg{\"a}nge, 18. und 19. Februar 2003 in Freiberg : Themenschwerpunkt: Fortschritte der Bruch- und Sch{\"a}digungsmechanik, Simulationsmethoden der Bruchmechanik. - Berlin : DVM, 2003. - (Deutscher Verband f{\"u}r Materialforschung und -pr{\"u}fung: DVM-Bericht ; 235)}, pages = {151 -- 160}, year = {2003}, language = {de} } @article{BoudnitskiEdelSchumann2004, author = {Boudnitski, Grigori and Edel, Karl-Otto and Schumann, Lars}, title = {Bewertung der Rissausbreitung an Federstellen in Zungenschienen}, series = {In: Materialpr{\"u}fung : MP Vol. 46 (2004) 7-8, 390-396}, journal = {In: Materialpr{\"u}fung : MP Vol. 46 (2004) 7-8, 390-396}, issn = {0025-5300}, doi = {10.3139/120.100604}, pages = {390 -- 396}, year = {2004}, abstract = {Im Bereich des Querschnitts{\"u}bergangs der Federstelle bilden sich unter ung{\"u}nstigen Umst{\"a}nden im Fuß von Zungenschienen Erm{\"u}dungsrisse, die letztlich den Bruch der Schiene verursachen k{\"o}nnen. Zur Qualifizierung der Bewertungskriterien, d.h. des Pr{\"u}fzyklusses der zerst{\"o}rungsfreien Pr{\"u}fung der Zungenschienen, wird die bruchmechanische Analyse als Monte-Carlo-Simulation gestaltet. Aus dem ung{\"u}nstigsten Risswachstumsverhalten wird f{\"u}r die zerst{\"o}rungsfrei ermittelte Rissgr{\"o}ße der erforderliche Pr{\"u}fzyklus in Abh{\"a}ngigkeit von der Betriebsbelastung abgeleitet.}, language = {de} } @article{BoudnitskiEdel2005, author = {Boudnitski, Grigori and Edel, Karl-Otto}, title = {Spannungsintensit{\"a}tsfaktoren f{\"u}r Risse in Schienen}, series = {In: Materialpr{\"u}fung : MP Vol. 47 (2005) 11-12, 674-681}, journal = {In: Materialpr{\"u}fung : MP Vol. 47 (2005) 11-12, 674-681}, issn = {0025-5300}, doi = {10.3139/120.100700}, pages = {674 -- 681}, year = {2005}, abstract = {Eisenbahnschienen k{\"o}nnen unter Betriebsbedingungen brechen. Mit Hilfe der Bruchmechanik lassen sich das Risswachstums- und Bruchverhalten der Schienen untersuchen. Um dieses Verhalten z.B. im Hinblick auf die zerst{\"o}rungsfreie Pr{\"u}fung der Schienen im Gleis analysieren zu k{\"o}nnen, m{\"u}ssen die folgenden Einzelheiten bekannt sein: Betriebs- und Bruchbedingungen (Schienentyp, Radkr{\"a}fte, Biegemomente, Temperaturen, Normalkr{\"a}fte und Eigenspannungen), die bruchmechanischen Eigenschaften des Schienenstahls unter Betriebsbedingungen, die Form der Risse und die entsprechenden Spannungsintensit{\"a}tsfaktoren. F{\"u}r Schienen des Typs R65 sind die Spannungsintensit{\"a}tsfaktoren f{\"u}r Querrisse, die von der Fahrfl{\"a}che ausgehen, mit dem FEM-Programm ANSYS berechnet worden f{\"u}r die radkraftbedingte Biegung, f{\"u}r Temperatur-Normalkr{\"a}fte sowie f{\"u}r die L{\"a}ngseigenspannungen.}, language = {de} } @inproceedings{Edel1993, author = {Edel, Karl-Otto}, title = {Fracture Mechanics Analysis of the Residual Service Life of the Welded Main Girders of the Highway Bridges of Ruedersdorf}, series = {In: Fatigue design : papers presented at the International Symposium on Fatigue Design / organized and sponsored by VTT (Technical Research Centre of Finland) and held in Helsinki, Finland. Co-sponsored by the European Structural Integrity Society (ESIS) and the Technology Development Centre of Finland (TEKES). Ed. by J Solin ... - London : Mechanical Engineering Publ., 1993. - (ESIS publication // European Structural Integrity Society, ISSN 1566-1369 ; 16). - ISBN 0-85298-884-2}, booktitle = {In: Fatigue design : papers presented at the International Symposium on Fatigue Design / organized and sponsored by VTT (Technical Research Centre of Finland) and held in Helsinki, Finland. Co-sponsored by the European Structural Integrity Society (ESIS) and the Technology Development Centre of Finland (TEKES). Ed. by J Solin ... - London : Mechanical Engineering Publ., 1993. - (ESIS publication // European Structural Integrity Society, ISSN 1566-1369 ; 16). - ISBN 0-85298-884-2}, pages = {109 -- 120}, year = {1993}, language = {en} } @article{CannonEdelGrassieetal.2003, author = {Cannon, D. F. and Edel, Karl-Otto and Grassie, S. L. and Sawley, K.}, title = {Rail defects: an overview}, series = {In: Fatigue \& Fracture of Engineering Materials \& Structures Volume 26 (2003) 10, pp 865-886}, journal = {In: Fatigue \& Fracture of Engineering Materials \& Structures Volume 26 (2003) 10, pp 865-886}, issn = {8756-758X}, doi = {10.1046/j.1460-2695.2003.00693.x}, pages = {865 -- 886}, year = {2003}, abstract = {For about 150 years, the steel rail has been at the very heart of the world's railway systems. The rail works in a harsh environment and, as part of the track structure, it has little redundancy; thus, its failure may lead to catastrophic derailment of vehicles, the consequences of which can include death, injury, costs and loss of public confidence. These can have devastating and long-lasting effects on the industry. Despite the advances being made in railway permanent way engineering, inspection and rail-making technology, continually increasing service demands have resulted in rail failure continuing to be a substantial economic burden and a threat to the safe operation of virtually every railway in the world. This paper presents an overview of rail defects and their consequences from the earliest days of railways to the present day.}, language = {en} } @inproceedings{BoehmSchaperJaegeretal.1994, author = {B{\"o}hm, A. and Schaper, M. and Jaeger, G. and Edel, Karl-Otto}, title = {Gef{\"u}ge und Erm{\"u}dungsrissausbreitungsuntersuchungen an der 55 Jahre alten, geschweissten Strelasundbr{\"u}cke}, series = {In: Metallographie : Gef{\"u}ge und Eigenschaften metallischer und nichtmetallischer Werkstoffe; Berichte der Metallographie-Tagung Aachen, 29. September bis 1. Oktober 1993 / Bearb.: Ludwig Hachtel ... Veranst.: Fachausschuss Metallographie der Deutschen Gesellschaft f{\"u}r Materialkunde ... - M{\"u}nchen ; Wien : Hanser, 1994. - (Praktische Metallographie / Sonderb{\"a}nde ; 25). - ISBN 3-446-17783-3}, booktitle = {In: Metallographie : Gef{\"u}ge und Eigenschaften metallischer und nichtmetallischer Werkstoffe; Berichte der Metallographie-Tagung Aachen, 29. September bis 1. Oktober 1993 / Bearb.: Ludwig Hachtel ... Veranst.: Fachausschuss Metallographie der Deutschen Gesellschaft f{\"u}r Materialkunde ... - M{\"u}nchen ; Wien : Hanser, 1994. - (Praktische Metallographie / Sonderb{\"a}nde ; 25). - ISBN 3-446-17783-3}, pages = {319 -- 330}, year = {1994}, language = {en} } @inproceedings{GrohmannSchnitzerEdel2003, author = {Grohmann, H.-D. and Schnitzer, T. and Edel, Karl-Otto}, title = {Head checks - and further damages}, series = {In: Enhancing safety, environment and economy through research : 6th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems, Gothenburg, Sweden, June 10 - 13, 2003; CM 2003; proceedings / Chalmers; CHARMEC. [Ed.: Anders Ekberg .̤] Vol. 1. - Gothenburg, Sweden : CHARMEC, Chalmers University of Technology, 2003. - ISBN 91-631-3928-6}, booktitle = {In: Enhancing safety, environment and economy through research : 6th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems, Gothenburg, Sweden, June 10 - 13, 2003; CM 2003; proceedings / Chalmers; CHARMEC. [Ed.: Anders Ekberg .̤] Vol. 1. - Gothenburg, Sweden : CHARMEC, Chalmers University of Technology, 2003. - ISBN 91-631-3928-6}, pages = {99 -- 104}, year = {2003}, language = {en} } @article{EdelHintzeKorn1992, author = {Edel, Karl-Otto and Hintze, Hartmut and Korn, Monika}, title = {Analysis of a solid railway wheel breakage}, series = {In: Rail international Vol. 23 (1992) 1, pp 28-40}, journal = {In: Rail international Vol. 23 (1992) 1, pp 28-40}, issn = {0020-8442}, pages = {28 -- 40}, year = {1992}, language = {en} } @article{EdelSchaper1992, author = {Edel, Karl-Otto and Schaper, M.}, title = {Fracture mechanics fatigue resistance analysis of the crack-damaged tread of overbraked solid railway vehicles}, series = {In: Rail international Vol. 23 (1992) 11, pp 35-49}, journal = {In: Rail international Vol. 23 (1992) 11, pp 35-49}, issn = {0020-8442}, pages = {35 -- 49}, year = {1992}, language = {en} }