力学与实践 ›› 2020, Vol. 42 ›› Issue (5): 627-632.DOI: 10.6052/1000-0879-20-028

• 教育研究 • 上一篇    下一篇

基于在线课程的材料力学疲劳问题教学内容拓展

方明霞1), 陈洁   

  1. 同济大学航空航天与力学学院,上海 200092
  • 收稿日期:2020-01-19 修回日期:2020-03-18 出版日期:2020-10-08 发布日期:2020-10-22
  • 通讯作者: 1) 方明霞,教授。研究方向为机械动力学与控制。E-mail: 92226@tongji.edu.cn

COURSE EXPANSION FOR FATIGUE PROBLEM IN THE COURSE OF MECHANICS OF MATERIALS BASED ON ONLINE COURSE

FANG Mingxia1), CHEN Jie   

  1. School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China
  • Received:2020-01-19 Revised:2020-03-18 Online:2020-10-08 Published:2020-10-22

摘要: 随着网络化的发展,在线课程平台正起着举足轻重的作用。在课程学时被大量压缩的情况下,基于在线课程平台,以扩展阅读的形式对书本知识 进行拓展正受到广泛重视。本文以工科专业重要学习内容——疲劳问题为例,基于在线课程平台将教材中金属材料在稳定交变载荷下的疲劳问 题,拓展到不稳定载荷下金属材料疲劳及非金属材料的疲劳问题,并通过实例给出疲劳寿命估算公式。利用在线平台整合资源、拓展知识,对培 养学生分析和解决问题能力具有重要作用。

关键词: 在线课程, 材料力学, 疲劳分析, 拓展知识

Abstract: With the development of network and information technology, online course platforms are playing an important role. In view of the reduction of the course hours, the book knowledge is expanded in the form of the extended reading of the online course. Based on the online course platform, this paper extends the fatigue problem of metal materials under the stable alternating load to the fatigue problem of metal materials under the unstable load and the fatigue problem of non-metal materials, and the fatigue life estimation formula is introduced through examples. Using the online platform to integrate resources and expand knowledge plays an important role in cultivating students' ability to analyze and solve problems.

Key words: online course, material mechanics, fatigue analysis, extended knowledge

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