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WFRF:(Ahlström Johan 1969)
 

Sökning: WFRF:(Ahlström Johan 1969) > Thermomechanical cr...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003896naa a2200421 4500
001oai:research.chalmers.se:4968f88f-6038-412c-b11d-3c479deeb01a
003SwePub
008171007s2015 | |||||||||||000 ||eng|
0247 a https://research.chalmers.se/publication/2306932 URI
040 a (SwePub)cth
041 a engb eng
042 9 SwePub
072 7a kon2 swepub-publicationtype
072 7a ref2 swepub-contenttype
1001 a Esmaeili, Ali,d 1983u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)eali
2451 0a Thermomechanical cracking of railway wheel treads: a combined experimental and numerical approach
264 1c 2015
520 a In the present study, thermal cracking of railway wheel treads is studied by full-scale brake rig tests and finite element simulations. The focus is on thermomechanical rolling contact fatigue (RCF) life predictions. The wheel tread material is subjected to simultaneous mechanical and thermal loads due to rolling contact and stop braking, respectively. Full-scale tests featuring three series of repeated stop braking cases have been performed at the Railway Technical Research Institute (RTRI) in Japan in a brake rig featuring a tread braked wheel that is in rolling contact with a railwheel. The brake rig test conditions have been simulated numerically using the finite element method. To this end, the effect of “hot bands” on the tread is accounted for as indicated by the experimental findings. Thermomechanical stresses induced by braking as well as Hertzian contact loading on the tread including tractive loads based on a partial slip assumption are considered. The mechanical response of the wheel material ER7 is obtained from a viscoplastic Chaboche material model calibrated against data from cyclic experiments with hold-time from room temperatures up to 650 °C. Finally, a strategy for prediction of fatigue life with respect to ratcheting failure is discussed.
650 7a TEKNIK OCH TEKNOLOGIERx Maskinteknikx Tribologi0 (SwePub)203082 hsv//swe
650 7a ENGINEERING AND TECHNOLOGYx Mechanical Engineeringx Tribology0 (SwePub)203082 hsv//eng
650 7a TEKNIK OCH TEKNOLOGIERx Maskinteknikx Teknisk mekanik0 (SwePub)203012 hsv//swe
650 7a ENGINEERING AND TECHNOLOGYx Mechanical Engineeringx Applied Mechanics0 (SwePub)203012 hsv//eng
650 7a TEKNIK OCH TEKNOLOGIERx Materialteknikx Annan materialteknik0 (SwePub)205992 hsv//swe
650 7a ENGINEERING AND TECHNOLOGYx Materials Engineeringx Other Materials Engineering0 (SwePub)205992 hsv//eng
650 7a TEKNIK OCH TEKNOLOGIERx Maskinteknikx Farkostteknik0 (SwePub)203032 hsv//swe
650 7a ENGINEERING AND TECHNOLOGYx Mechanical Engineeringx Vehicle Engineering0 (SwePub)203032 hsv//eng
7001 a Caprioli, Sara,d 1978u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)caprioli
7001 a Ekberg, Anders,d 1967u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)anek
7001 a Ekh, Magnus,d 1969u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)mgjo
7001 a Lundén, Roger,d 1949u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)rolu
7001 a Vernersson, Tore V,d 1968u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)tore
7001 a Handa, Kazuyuki4 aut
7001 a Ikeuchi, K.4 aut
7001 a Miyauchi, Toru4 aut
7001 a Ahlström, Johan,d 1969u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)jnah
7102 a Chalmers tekniska högskola4 org
7730 t Proceedings of the 10th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems (CM2015)g , s. 8-q <8-
8564 8u https://research.chalmers.se/publication/230693

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