结构完整性评估技术
发布时间:2022-09-01
结构完整性研究中心(简称“完整性中心”)拥有专业的专家团队,从事金属材料结构断裂与疲劳、环境服役评估、无损检测与监测和风险分析及大数据管理等方面的技术研究和咨询服务,并研发结构完整性评估软件。专家团队拥有国外多年丰富的工作经验,并在该领域有领先的国际视野和技术能力。
完整性中心在工程临界评估和“合于使用”评估两大工程应用领域处于国际领先地位。在工程结构设计、制造、检验、服役和退役及延寿各个阶段采用断裂力学原理对存在的缺陷或预计可能产生的缺陷进行定量的分析评估,以保证结构安全可靠。专家团队熟知国内外结构完整性相关标准评估程序,包括BS 7910、API579、R6、GB/T 19624、GB/T 35013、DNVGL-F101、DNVGL-F108、API1104等,在核能、新能源、海洋工程、石油天然气、化工、航天航空、轨道交通等领域开展了大量的技术咨询和研发类工作。
团队目前共有成员6名,包括研究员1名,副研究员2名,助理研究员3名,其中博士学位4人,硕士学位2人。

♦ 研究方向
① 断裂与疲劳评估;
② 环境服役评估;
③ 无损检测与监测;
④ 风险评估与大数据分析。
♦ 仪器设备

♦ 应用案例
案例1:油气管道应力腐蚀裂纹评估与管理
应力腐蚀裂纹发生在埋地管道的外表面,其对管道可靠性的影响直接管道的服役。通过断裂力学的方法并结合材料的拉伸性能,断裂韧性以及裂纹增长率对应力腐蚀裂纹进行工程临界评估,得到各个裂纹的损伤容限并给出不同位置裂纹检测和修复方案和时间,为管道的安全服役提供科学性指导,并为企业降低返修频率,安全可靠地减少停产损失,带来显著的经济效益。
对基于声发射技术的辙叉健康状态监测进行了研究,采用声发射技术监测高锰钢试样疲劳失效过程,建立了信号与裂纹长度之间的联系,证明了可以用声发射技术来监测辙叉用高锰钢中裂纹的起裂和扩展。
♦ 科研成果
承研项目(部分):
1.《高性能金属增材制造关键基础科学问题研究》,广东省基础与应用基础研究重大项目,2021.1~2025.12
2.《基于材料基因工程的先进能源装备材料服役性能评价技术及其应用研究》,广东省基础与应用基础研究重大项目,2019.10~2024.09
3.《高品质热作模具钢研发与产业化》,广东省重点领域研发计划项目,2020.01~2023.01
4.《含缺陷活塞疲劳开裂的有限元模拟分析》,常州中车柴油机零部件有限公司,2021.08~2021.12
5.《基于应变设计的油气管道断裂评价方法现状及探讨》,中国石油集团工程材料研究院有限公司,2021.10~2022.02
6.《基于应变的管道环焊缝评估方法研究及技术路线优化》,国家管网北方管道有限公司,2021.12-2023.06
7.《电弧增材制造Inconel718疲劳裂纹萌生及损伤演化机理研究》,广东省基础与应用基础研究基金,2021.10-2024.10
8.《应力比和加载频率对高锰钢疲劳裂纹扩展中声发射速率的影响研究》,广东省基础与应用基础研究基金,2021.10-2024.10
发表论文(部分):
1. Wang S., Hou C., Wang B., Wu G., Fan X. and Xue H., 2022, “Mechanical responses of L450 steel under biaxial loading in the presence of the stress discontinuity”, International Journal of Pressure Vessels and Piping, Vol. 198,104662.
2. Wang Y., Mohamed O., Dunn K., Sui T., Bashir M., Cooper P., Lukenskas A., Wu G. and Gorley M., 2021, “Effects of stress triaxiality and strain rate on the fracture of a CuCrZr alloy”, Journal of Nuclear Materials, Vol. 543, 152546.
3. Seow C., Zhang J, Coules H., Wu G., Jones C., Ding J. and Williams S., 2020, “Effect of crack-like defects on the fracture behaviour of Wire + Arc Additive Manufactured nickel-base Alloy 718”, Additive Manufacturing, Vol. 36,101578.
4. Wu G.*, Wang L. and Hadley I., 2020, “Validation of strain-based fracture assessment methods – BS7910, R6 and DNVGL-RP-F108”, presented at the 30th International Ocean and Polar Engineering Conference, Virtual, October 11-16, ISOPE-I-20-4107.
5. Wu G., Aird C. J. and Pavier M. J., 2019, “The effect of residual stress on a centre-cracked plate under uniaxial loading”, International Journal of Fracture, Vol. 219, pp. 101-121.
6. Chukkan J., Wu G., Kelleher J., Fitzpatrick M. and Jones S., 2019, “An iterative technique for the reconstruction of residual stress fields in a butt-welded plate from experimental measurement, and comparison with welding process simulation”, International Journal of Mechanical Sciences, Vol. 160, pp. 421-428.
7. Seow C., Coules H., Wu G., Khan R., Xu X. and Williams S., 2019, “Wire + arc additively manufactured Inconel 718: effect of post-deposition heat treatments on microstructure and tensile properties”, Materials & Design, Vol. 183,108157.
8. Wang L., Wu G.*, Pisarski H. and Wang B., 2019, “Fracture response of pipeline containing a circumferential flaw in the presence of luders plateau”, International Journal of Solids and Structures, Vol. 156-157, pp. 29-48.
9. Mirzaee-Sisan A. and Wu G.*, 2019, “Residual stress in pipeline girth welds – A review of recent data and modelling”, International Journal of Pressure Vessels and Piping, Vol. 169, pp. 142-152.
10. Wu G.*, Wang L., London T. and Pisarski H, 2019, “Pipe girth welds under plastic straining: full-scale testing and strain-based approaches”, Proceedings of the Conference on Asset Integrity Management-Pipeline Integrity Management Under Geohazard Conditions, AIM-PIMG 2019, Mar 25-28, Houston, USA.
11. Miraee-Sisan A. and Wu G*, 2019, “Residual stress in girth welds: seeing measurement data differently”,Proceedings of the ASME 38th International Conference on Ocean, Offshore and Arctic Engineering, June 9-14, 2019,Glasgow, UK.
12. Hadley I.* and Wu G.*, 2018, “Treatment of reliability in fracture assessments using BS 7910 Annex K”,International Journal of Pressure Vessels and Piping, Vol. 168, pp. 310-322.
13. Wu G.* and Wang L., 2018, “An overview of strain-based fracture mechanics of pipelines”, Proceedings of the ASME 37th International Conference on Ocean, Offshore and Arctic Engineering, July 17-22, 2018, Madrid, Spain.
14. Chukkan J. R., Wu G., Fitzpatrick M. E., Eren E., Zhang X. and Kelleher J., 2018, “Residual stress redistribution during elastic shake-down in welded plates”, 12th International Fatigue Congress, MATEC Web of Conferences Vol.165, article number:21004.
15. Chukkan J. R., Wu G., Fitzpatrick M. E., Eren E., Zhang X. and Kelleher J., 2018, “Residual stress redistribution during elastic shakedown in fillet welded plate”, Residual Stress 2018 – ERCS-10, Materials Research Proceedings 6, pp. 233-238.
16. Wu G.*, Dougherty L. and Wang B., 2017, “Effects of residual stresses on engineering critical assessment considering elastic follow-up”, Engineering Structural Integrity Assessment Conference, ESIA 14, 2017, Manchester, UK.
17. Wang L., Eren E., Wang B. and Wu. G.*, 2017, “Consideration of yield discontinuity in the elastic-plastic fracture analysis of circumferentially flawed pipes”, Proceedings of the ASME 2017 Pressure Vessels and Piping Conference,2017, Waikoloa, Hawaii, United States.
18. Bahrami A.*, Baker D., Oikonomidis F., Cui X. and Wu G., 2017, ”Probabilistic engineering critical assessment of circumferential girth weld flaws in sour service”, Proceedings of the 27th International Ocean and Polar Engineering Conference, San Francisco, United States.
19. Wu G*, Smith D and Tanner D. 2015: “Prediction of fatigue crack initiation and growth during thermal cycling’,PVP2015-45235, Proceedings of PVP2015, ASME Pressure Vessels & Piping Division Conference, 19-23 July, 2015,Boston, Massachusetts.
20. Wu G*, Smith D and Pavier M. 2013: “The influence of long-range residual stress on plastic collapse of pressurized pipes with and without flaws”, International Journal of Pressure Vessels and Piping, Vol. 111-112, pp. 54-62.
申请专利(部分):
1.史生润,吴桂毅,张书彦,张鹏;一种铁路辙叉的疲劳损伤状态识别方法;2022-01-26,中国,202210094218.2
2. 储林华、温树文、张书彦、张鹏、肖巍、朱水文、方敏杰、樊卓志、吴炜枫;基于BP网络模型的核用锆-4合金耐腐蚀性能预测方法、电子设备、储存介质;2020-09-30,中国,202011069396.7
3. 樊卓志、温树文、贡志锋、张书彦、马艳玲、高建波;一种腐蚀试验装置及腐蚀试验方法;2021-04-12,中国,202110391410.3
4. 李军、张书彦、张鹏、温树文;一种双头搅拌摩擦焊接装置,2018-12-30,201822262134.7
5. 李军、张书彦、张鹏、温树文;一种局部可调温度场控制焊接残余应力和变形装置,2019.5.17,201920720832.9
6. 李军、温树文、张书彦、张鹏;一种平板直缝焊接试验夹具,2019.10.14,201921722654.X
7. 樊卓志、温树文、张书彦、张鹏;一种高自由度可调节LVDT支撑架,2020.5.21,202021071722.3
8. 温树文、李军、张书彦、张鹏;能够降低异种金属筒体对接焊缝残余应力的装置及方法,2020.5.21,202010548060.2
♦ 联系方式
主任:吴桂毅
电话:0769-23079125
邮箱:guiyi.wu@ceamat.com