学历/学位

研究生/博士

职    称

教授

导师类型

□学术学位                 ■专业学位

招生学科/专业

土木水利

研究方向

材料及结构的多场耦合断裂与疲劳、高温强度

所在单位

土木与水利工程学院

E-mail

ldy0322@cqust.edu.cn

基本情况（含教学科研经历）:

　　李定玉，力学博士，教授，硕士生导师，新加坡南洋理工大学访问学者，重庆市力学学会理事。主要从事热防护材料热冲击损伤破坏、材料及结构的多场耦合疲劳与断裂、高温强度、多场耦合疲劳损伤与断裂的相场模拟等方面的研究工作。主持科研项目13项，包括国家自然科学基金面上项目、国家自然科学基金青年科学基金项目、重庆市技术创新与应用发展专项重点项目、重庆市科技局面上项目等。

主要教学科研成果：

　　[1] Jiaxing Shao, Chen Li, Ziyuan Zhao, Yong Deng*, Jiangbo Han b, Dingyu Li*, Weiguo Li，Fracture strength and toughness evolution in ZrB2-SiC-Si/SiCw composites exposed to air up to 1550 °C. International Journal of Refractory Metals and Hard Materials, 2025, 135: 107528.

　　[2] Yong Pang, Dingyu Li*, Xin Li, Ruzhuan Wang, Xiang Ao, Phase-Field Simulation of Temperature-Dependent Thermal Shock Fracture of Al2O3/ZrO2 Multilayer Ceramics with Phase Transition Residual Stress. Materials, 2023, 16(2), 734.

　　[3] Dingyu Li, Peidong Li, Weidong Li, Weiguo Li, Kun Zhou, Three-dimensional phase-field modeling of temperature-dependent thermal shock-induced fracture in ceramic materials. Engineering Fracture Mechanics, 2022, 268: 108444.

　　[4] Dingyu Li, Yong Pang, Tao Lu, Zhongshuai Liu, Shiwei Chen, Numerical analysis of thermal shock cracking behaviors of ceramics based on the force-heat equivalence energy density principle. Frontiers in Materials, 2022, 8: 825327.

　　[5] Peidong Li, Dingyu Li, Qingyuan Wang, Kun Zhou, Phase-field modeling of hydro-thermally induced fracture in thermo-poroelastic media. Engineering Fracture Mechanics, 2021, 254: 107887.

　　[6] Ruzhuan Wang, Dingyu Li, Weiguo Li, Temperature dependence of hardness prediction for high-temperature structural ceramics and their composites. Nanotechnology Reviews, 2021, 10: 586-595.

　　[7] Dingyu Li, Ruzhuan Wang, Xiaorong Wang, Weiguo Li, Simulation of the thermal shock cracking behaviors of ceramics under water quenching for 3-dimension conditions. European Journal of Mechanics / A Solids, 2020, 84: 104080.

　　[8] 李定玉, 王树彬, 徐念东, 李卫国, 基于力热能量密度等效原理的热障涂层损伤数值研究. 中国材料进展, 2020, 39(11): 871-877.

　　[9] Dingyu Li, Weiguo Li, Ruzhuan Wang, Haibo Kou, High-temperature strength of zirconia and its sensitivity to surface defects. Materials Research Express, 2019, 6: 075511.

　　[10] Dingyu Li, Weiguo Li, Ruzhuan Wang, Haibo Kou, Simulation of the thermal shock behavior of ultra-high temperature ceramics with the consideration of temperature-dependent crack propagation criterion and interaction between thermal shock cracks evolution and thermal conduction. European Journal of Mechanics / A Solids, 2018, 72: 268–274.

主要科研课题：

　　[1] 基于相场法的超高温陶瓷循环热冲击损伤破坏及其失效机理研究，国家自然科学基金面上项目，2024.01- 2027.12，主持

　　[2] 基于相场法的超高温陶瓷材料宽温域热冲击热/力耦合损伤破坏研究, 重庆市自然科学基金面上项目, 2024.07-2027.06, 主持

　　[3] 燃气管网全寿命周期绿色管养系统开发与应用，重庆市技术创新与应用发展专项重点项目，2022.12-2025.12，联合申报