引用本文: 彭惠芬, 李春龙, 陈淑艳, 刘港华. 塑性力学洛德应力参数高阶性研究与实践1)[J]. 力学与实践, 2021, 43(6): 981-985.
PENG Huifen, LI Chunlong, CHEN Shuyan, LIU Ganghua. HIGHER ORDER RESEARCH AND PRACTICE OF LODE STRESS PARAMETERS IN PLASTIC MECHANICS$^{1)}$[J]. MECHANICS IN ENGINEERING, 2021, 43(6): 981-985.
 Citation: PENG Huifen, LI Chunlong, CHEN Shuyan, LIU Ganghua. HIGHER ORDER RESEARCH AND PRACTICE OF LODE STRESS PARAMETERS IN PLASTIC MECHANICS$^{1)}$[J]. MECHANICS IN ENGINEERING, 2021, 43(6): 981-985.

## HIGHER ORDER RESEARCH AND PRACTICE OF LODE STRESS PARAMETERS IN PLASTIC MECHANICS^1)

• 摘要: 为培养学生解决复杂问题的综合能力和高阶思维,推进课堂高阶性教学改革,本文以工程力学专业本科课程塑性力学教学难点——洛德应力参数为例,构建"三位一体"的高阶性课堂教学体系,以洛德应力参数为核心内容,遵循课前、课中和课后围绕其相关性、拓展分析和工程应用三方面开展高阶性研究,将教与学有机结合,拓展分析了洛德应力参数与应力偏张量三个不变量变化规律,给出了工程中9种应力状态相对应的塑性变形,可为课堂高阶性改革提供新思路。

Abstract: In order to cultivate students' comprehensive ability and higher order in solving complex problems, and to promote advanced teaching reform in the classroom, This article takes the difficulty of plastic mechanics teaching in engineering mechanics undergraduate course-Lode stress parameter as an example to construct a "three -in-one" advanced classroom teaching system. With the Lode stress parameter as the core content, follow the pre-class, in-class and after-class to carry out high-level research around its relevance, expansion analysis and engineering application,combining teaching and learning organically, expanding and analyzing the three invariants of Lode's stress parameter and stress deviatoric tensor, giving out the plastic deformation corresponding to nine kinds of stress states in engineering, providing new ideas for advanced classroom reforms.

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