PSI - Issue 22

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Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000 – 000

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Procedia Structural Integrity 22 (2019) 361–368

© 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the First International Symposium on Risk and Safety of Complex Structures and Components organizers © 2019 The Authors. Published by Elsevier B.V.This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the First International Symposium on Risk and Safety of Complex Structures and Components organizers IIW-2008 standards, the stress state as es ment m thod for welded joints of compl x elded structures meeting BS EN15058-3 w s studi d. Th stress state grade assessm nt methods of welded joints under two st nda ds are programmed by using C and APDL language. ASME can not only assess th stress state rade of welded structures without defects, but a so evaluate the stress state grade f welded joints consideri g defects based on test data. Under the fatigue loa provided by EN13749 standar , the evaluation met od of stress state grad is validated in the d ign of wel ing structure of truck frame. The results show that the evaluation m thod based on IIW-2008 st ndard is more string nt, and the str ss factor of weld seam betw en cross beam an traction rod sea is the largest, with a value 0.881, and the tress stat grade is "me i m". For welded joints with defects, the fatigue life decreases and the stress state grade increases with the increase of the equivalent initial crack of defects. The m thod has th value in the f tigu resistance design of ailway vehicles and oth r complex products. © 2019 The Authors. Published by Elsevier B.V.This is an open access article u er th CC BY-NC-ND li ense (http://cr a ivecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the First International Symposium on Risk and Safety of Complex Structures and Components organizers Abstract Based on ASME-BPVC-VIII-2:2015 and IIW-2008 standards, the stress state assessment method for welded joints of complex welded structures meeting BS EN15058-3 was studied. The stress state grade assessment methods of welded joints under two standards are programmed by using C and APDL language. ASME can not only assess the stress state grade of welded structures without defects, but also evaluate the stress state grade of welded joints considering defects based on test data. Under the fatigue load provided by EN13749 standard, the evaluation method of stress state grade is validated in the design of welding structure of truck frame. The results show that the evaluation method based on IIW-2008 standard is more stringent, and the stress factor of weld seam between cross beam and traction rod seat is the largest, with a value of 0.881, and the stress state grade is "medium". For welded joints with defects, the fatigue life decreases and the stress state grade increases with the increase of the equivalent initial crack of defects. The method has the value in the fatigue resistance design of railway vehicles and other complex products. Ab tract B sed on ASME-BPVC-VIII-2:2015 Keywords: Railway rolling stock ; welding joint; anti-fatigue design; stress state grade; evaluation method; First International Symposium on Risk and Safety of Complex Structures and Components Stress state grade evaluation method for welded joints of complex structures on railway rolling stock and its application in welded frame C.L. Niu a,c , S.M.Xie a * , X.W.Li b , W.Wang b First International Symposium on Risk and Safety of Complex Structures and Components Stress state grade ev luatio method for welded joints of complex structures on railway rolling stock and its application in welded frame C.L. Niu a,c , S.M.Xie a * , X.W.Li b , W.Wang b a School of Locomotive and Rolling stock Engineering, Dalian Jiaotong University, Dalian116028,China b CRRC Qiqihar Rolling Stock Co., LTD., Qiqihar 161002,China c School of Mechanical and Power Engineering, Dalian Ocean University a School of Locomotive and Rolling stock Engin ering, Dalia Jiaotong University, Dalian116028,China b CRRC Qiqihar Rolling Stock Co., LTD., Qiqihar 161002,China c School of Mechanical and Power Engineering, Dalian Ocean University

Keywords: Railway rolling stock ; welding joint; anti-fatigue design; stress state grade; evaluation method;

* Corresponding author. Tel.: +86-13940915207 , +86-411-84109261; Fax: +86-411-84106207. E-mail address: sumingxie@163.com(S.M.XIE)

2452-3216 © 2019 The Authors. Published by Elsevier B.V.This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review statement: Peer-review under responsibility of the First International Symposium on Risk and Safety of Complex Structures and Components organizers 2452 3216 © 2019 The Autho s. Published by Elsevier B.V.This is an open acc ss rticle under the CC BY-NC-ND license (http://c ativecommons.org/licenses/by-nc-nd/4.0/) Peer-review statement: Peer-review under responsibility of the First International Symposium on Risk and Safety of Complex Structures and Components organizers * Corresponding author. Tel.: +86-13940915207 , +86-411-84109261; Fax: +86-411-84106207. E mail address: sumingxie@163.com(S.M.XIE)

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