{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,23]],"date-time":"2026-01-23T17:05:41Z","timestamp":1769187941173,"version":"3.49.0"},"reference-count":31,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2022,8,16]],"date-time":"2022-08-16T00:00:00Z","timestamp":1660608000000},"content-version":"vor","delay-in-days":227,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2022,1,1]],"date-time":"2022-01-01T00:00:00Z","timestamp":1640995200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100007957","name":"Chongqing Municipal Education Commission","doi-asserted-by":"publisher","award":["KJQN202001313"],"award-info":[{"award-number":["KJQN202001313"]}],"id":[{"id":"10.13039\/501100007957","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100005230","name":"Natural Science Foundation of Chongqing Municipality","doi-asserted-by":"publisher","award":["CSTC2021JCYJ-BSH0230"],"award-info":[{"award-number":["CSTC2021JCYJ-BSH0230"]}],"id":[{"id":"10.13039\/501100005230","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100005230","name":"Natural Science Foundation of Chongqing Municipality","doi-asserted-by":"publisher","award":["CTSC2021 JCYJ -MSXMX0639"],"award-info":[{"award-number":["CTSC2021 JCYJ -MSXMX0639"]}],"id":[{"id":"10.13039\/501100005230","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002867","name":"Chongqing University of Arts and Sciences","doi-asserted-by":"publisher","award":["R2019STM08"],"award-info":[{"award-number":["R2019STM08"]}],"id":[{"id":"10.13039\/501100002867","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002867","name":"Chongqing University of Arts and Sciences","doi-asserted-by":"publisher","award":["Y2021TM06"],"award-info":[{"award-number":["Y2021TM06"]}],"id":[{"id":"10.13039\/501100002867","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Complexity"],"published-print":{"date-parts":[[2022,1]]},"abstract":"<jats:p>Welding joint is a key component in steel structure engineering, which is often subjected to complex stress and becomes the weak link of building structure, and different fracture modes may appear under different stress. In this study, the ductile fracture of Q345 steel welded joint was investigated by selecting the base material and heat\u2010affected zone (HAZ) material. Based on the J\u2013C (Johnson\u2013Cook) fracture model of stress triaxiality factor, a series of round bar specimens were designed for the tensile test, and the variation of minimum diameter and gauge distance was tracked in real time by digital image correlation (DIC) technology, and the cloud map of strain distribution in the whole loading process was obtained. The constitutive model and fracture criterion model of Q345 steel welded joint base material and HAZ material are established through experimental measurement. The results show that the maximum triaxial stress is at the center root of the minimum diameter of the notched round bar tensile specimen, the sudden change of the notched edge will lead to stress concentration, the stress change of the notch section is the most significant, extending from near the notch, the maximum strain is at the root of the notch, and the fracture position appears at the minimum section of the notch. According to the true stress\u2010strain curve of a standard tensile specimen and the least square method, the values of parameters A, B, and N of the J\u2013C (Johnson\u2013Cook) constitutive model of base material and HAZ material are 379.80, 452.89, and 0.37 and 392.90, 540.61, and 0.49, respectively. The fracture strains of the base metal and HAZ material under different triaxial stresses were measured experimentally, and the J\u2013C fracture model was fitted. The values of failure criterion parameters D1, D2, and D 3 were 1.025, \u22120.008, and 3.617 and 0.678, \u22122.689E\u20105, and 7.683, respectively. This provides experimental parameters for mechanical properties and fracture models of welded joints in structural engineering, refined finite element models considering material failure for structural numerical analysis, and basic data for evaluation and design of building structures, which have good social and economic benefits.<\/jats:p>","DOI":"10.1155\/2022\/6146297","type":"journal-article","created":{"date-parts":[[2022,8,17]],"date-time":"2022-08-17T02:05:55Z","timestamp":1660701955000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Constitutive Model and Fracture Criterion of Q345 Steel Welded Joints"],"prefix":"10.1155","volume":"2022","author":[{"given":"Lian","family":"Song","sequence":"first","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8797-1269","authenticated-orcid":false,"given":"Genfeng","family":"Li","sequence":"additional","affiliation":[]},{"given":"Cong","family":"Zhu","sequence":"additional","affiliation":[]},{"given":"Huaqiang","family":"Fang","sequence":"additional","affiliation":[]},{"given":"Guoqing","family":"Zhu","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2022,8,16]]},"reference":[{"key":"e_1_2_10_1_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcsr.2021.106646"},{"key":"e_1_2_10_2_2","volume-title":"True Stress - True Strain Calculation Model and Test System","author":"Wang C. L.","year":"2008"},{"key":"e_1_2_10_3_2","first-page":"226","article-title":"Method for obtaining full range uniaxial constitutive relationship of ductile materials based on test and finite element coupling technology","volume":"673","author":"Yao D.","year":"2014","journal-title":"Journal of solid mechanics"},{"key":"e_1_2_10_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0007-8506(07)60569-1"},{"key":"e_1_2_10_5_2","doi-asserted-by":"publisher","DOI":"10.1080\/13873954.2019.1604553"},{"key":"e_1_2_10_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijmecsci.2004.02.006"},{"key":"e_1_2_10_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/s0921-5093(04)00883-4"},{"key":"e_1_2_10_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/s0997-7538(02)00005-0"},{"key":"e_1_2_10_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.prostr.2018.12.199"},{"key":"e_1_2_10_10_2","doi-asserted-by":"publisher","DOI":"10.1115\/1.4050703"},{"key":"e_1_2_10_11_2","doi-asserted-by":"publisher","DOI":"10.1088\/2053-1591\/ab0d72"},{"key":"e_1_2_10_12_2","doi-asserted-by":"publisher","DOI":"10.1088\/2053-1591\/ab1d25"},{"key":"e_1_2_10_13_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijsolstr.2020.10.011"},{"key":"e_1_2_10_14_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11665-021-05607-5"},{"key":"e_1_2_10_15_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.tafmec.2021.102929"},{"key":"e_1_2_10_16_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcsr.2020.106060"},{"key":"e_1_2_10_17_2","doi-asserted-by":"publisher","DOI":"10.1002\/mawe.202000026"},{"key":"e_1_2_10_18_2","doi-asserted-by":"publisher","DOI":"10.1016\/0013-7944(85)90052-9"},{"key":"e_1_2_10_19_2","doi-asserted-by":"publisher","DOI":"10.4159\/harvard.9780674731349"},{"key":"e_1_2_10_20_2","volume-title":"Ministry of Housing and Urban Rural Development of the People\u2019s Republic of China. National Standard of the People\u2019s Republic of China. Code for Welding of Steel Structures: GB50661-2011","year":"2011"},{"key":"e_1_2_10_21_2","doi-asserted-by":"publisher","DOI":"10.2478\/adms-2019-0021"},{"key":"e_1_2_10_22_2","doi-asserted-by":"publisher","DOI":"10.3390\/ma13173888"},{"key":"e_1_2_10_23_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijimpeng.2014.07.001"},{"key":"e_1_2_10_24_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.measurement.2020.107871"},{"key":"e_1_2_10_25_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.compositesb.2021.108875"},{"key":"e_1_2_10_26_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.tws.2019.106584"},{"key":"e_1_2_10_27_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jobe.2021.102306"},{"key":"e_1_2_10_28_2","doi-asserted-by":"publisher","DOI":"10.1115\/1.3423586"},{"key":"e_1_2_10_29_2","unstructured":"JohnsonG. R.andCookW. H. A Constitutive Model and Data for Metals Subjected to Large Strains Proceedings of the High Strain Rates and High Temperatures April 1983 The Hague."},{"key":"e_1_2_10_30_2","doi-asserted-by":"publisher","DOI":"10.1063\/1.338024"},{"key":"e_1_2_10_31_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcsr.2014.12.002"}],"container-title":["Complexity"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1155\/2022\/6146297","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1155\/2022\/6146297","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1155\/2022\/6146297","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,1,22]],"date-time":"2026-01-22T21:27:39Z","timestamp":1769117259000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1155\/2022\/6146297"}},"subtitle":[],"editor":[{"given":"Hassan","family":"Zargarzadeh","sequence":"additional","affiliation":[]}],"short-title":[],"issued":{"date-parts":[[2022,1]]},"references-count":31,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2022,1]]}},"alternative-id":["10.1155\/2022\/6146297"],"URL":"https:\/\/doi.org\/10.1155\/2022\/6146297","archive":["Portico"],"relation":{},"ISSN":["1076-2787","1099-0526"],"issn-type":[{"value":"1076-2787","type":"print"},{"value":"1099-0526","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,1]]},"assertion":[{"value":"2022-03-10","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-07-06","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-08-16","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"6146297"}}