The Contact Fatigue Life Evaluation According to Contact Surface Removal
Railway wheels and axles have been one of the most critical components in a railway vehicle. The service conditions of railway vehicles have became more severe in recent years due to the increase of the speed. It is very important to evaluate the reliability of wheels with regard to safety, because...
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| Veröffentlicht in: | Key engineering materials 2006-01, Vol.321-323, p.640-643 |
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| creator | Choi, Jae Boong Hur, Hyun Mu Kwon, Seok Jin Seo, Jung Won Kim, Young Jin |
| description | Railway wheels and axles have been one of the most critical components in a railway
vehicle. The service conditions of railway vehicles have became more severe in recent years due to the
increase of the speed. It is very important to evaluate the reliability of wheels with regard to safety,
because wheel failure can cause derailment with loss of life and property. One of the major reasons of
the railway wheel damage is the contact zone failure by wheel/rail contact. One of the methods for
preventing the failure and increasing the fatigue life is to grind periodically the contact surface before
reaching the failure. The increase or decrease of the contact fatigue life by the surface removal of the
contact surface were shown by many researchers. However, the reason why fatigue life increases or
decrease has not been investigated obviously. In this study, the effect of the surface removal depth on
the contact fatigue life for a railway wheel is evaluated through the employment of rolling contact
fatigue tests and the finite element analysis. It is found that the contact fatigue life increased with the
removal depth. But in the case that the removal depth is greater than the optimal depth, the contact
fatigue life decreased. It seems to be obvious that the residual strain is the main factor determining the
fatigue life according to the removal depth |
| doi_str_mv | 10.4028/www.scientific.net/KEM.321-323.640 |
| format | Article |
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vehicle. The service conditions of railway vehicles have became more severe in recent years due to the
increase of the speed. It is very important to evaluate the reliability of wheels with regard to safety,
because wheel failure can cause derailment with loss of life and property. One of the major reasons of
the railway wheel damage is the contact zone failure by wheel/rail contact. One of the methods for
preventing the failure and increasing the fatigue life is to grind periodically the contact surface before
reaching the failure. The increase or decrease of the contact fatigue life by the surface removal of the
contact surface were shown by many researchers. However, the reason why fatigue life increases or
decrease has not been investigated obviously. In this study, the effect of the surface removal depth on
the contact fatigue life for a railway wheel is evaluated through the employment of rolling contact
fatigue tests and the finite element analysis. It is found that the contact fatigue life increased with the
removal depth. But in the case that the removal depth is greater than the optimal depth, the contact
fatigue life decreased. It seems to be obvious that the residual strain is the main factor determining the
fatigue life according to the removal depth</description><identifier>ISSN: 1013-9826</identifier><identifier>ISSN: 1662-9795</identifier><identifier>EISSN: 1662-9795</identifier><identifier>DOI: 10.4028/www.scientific.net/KEM.321-323.640</identifier><language>eng</language><publisher>Trans Tech Publications Ltd</publisher><ispartof>Key engineering materials, 2006-01, Vol.321-323, p.640-643</ispartof><rights>2006 Trans Tech Publications Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c236t-7541b4233fa3f0e32f452a5a27c2f74d87e0d3ce0c9ce558696d7e9f74eb2ac43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttps://www.scientific.net/Image/TitleCover/42?width=600</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Choi, Jae Boong</creatorcontrib><creatorcontrib>Hur, Hyun Mu</creatorcontrib><creatorcontrib>Kwon, Seok Jin</creatorcontrib><creatorcontrib>Seo, Jung Won</creatorcontrib><creatorcontrib>Kim, Young Jin</creatorcontrib><title>The Contact Fatigue Life Evaluation According to Contact Surface Removal</title><title>Key engineering materials</title><description>Railway wheels and axles have been one of the most critical components in a railway
vehicle. The service conditions of railway vehicles have became more severe in recent years due to the
increase of the speed. It is very important to evaluate the reliability of wheels with regard to safety,
because wheel failure can cause derailment with loss of life and property. One of the major reasons of
the railway wheel damage is the contact zone failure by wheel/rail contact. One of the methods for
preventing the failure and increasing the fatigue life is to grind periodically the contact surface before
reaching the failure. The increase or decrease of the contact fatigue life by the surface removal of the
contact surface were shown by many researchers. However, the reason why fatigue life increases or
decrease has not been investigated obviously. In this study, the effect of the surface removal depth on
the contact fatigue life for a railway wheel is evaluated through the employment of rolling contact
fatigue tests and the finite element analysis. It is found that the contact fatigue life increased with the
removal depth. But in the case that the removal depth is greater than the optimal depth, the contact
fatigue life decreased. It seems to be obvious that the residual strain is the main factor determining the
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vehicle. The service conditions of railway vehicles have became more severe in recent years due to the
increase of the speed. It is very important to evaluate the reliability of wheels with regard to safety,
because wheel failure can cause derailment with loss of life and property. One of the major reasons of
the railway wheel damage is the contact zone failure by wheel/rail contact. One of the methods for
preventing the failure and increasing the fatigue life is to grind periodically the contact surface before
reaching the failure. The increase or decrease of the contact fatigue life by the surface removal of the
contact surface were shown by many researchers. However, the reason why fatigue life increases or
decrease has not been investigated obviously. In this study, the effect of the surface removal depth on
the contact fatigue life for a railway wheel is evaluated through the employment of rolling contact
fatigue tests and the finite element analysis. It is found that the contact fatigue life increased with the
removal depth. But in the case that the removal depth is greater than the optimal depth, the contact
fatigue life decreased. It seems to be obvious that the residual strain is the main factor determining the
fatigue life according to the removal depth</abstract><pub>Trans Tech Publications Ltd</pub><doi>10.4028/www.scientific.net/KEM.321-323.640</doi><tpages>4</tpages></addata></record> |
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| title | The Contact Fatigue Life Evaluation According to Contact Surface Removal |
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