以开放实验搭建基础力学与实践的纽带——以薄壁圆筒应力分析为例  

BUILDING THE LINK BETWEEN BASIC MECHANICS AND PRACTICE BY OPEN EXPERIMENT——STRESS ANALYSIS OF THIN-WALLED CYLINDER AS AN EXAMPLE

作　　者：卢玉林[1] 陈晓冉 王丽[1] 魏佳[1] LU Yulin;CHEN Xiaoran;WANG Li;WEI Jia(Key Laboratory of Building Collapse Mechanism and Disaster Prevention,Institute of Disaster Prevention,Beijing 101601,China;School of Geological Engineering,Institute of Disaster Prevention,Beijing 101601,China)

机构地区：[1]防灾科技学院中国地震局建筑物破坏机理与防御重点实验室,北京101601 [2]防灾科技学院地质工程学院,北京101601

出　　处：《力学与实践》2022年第2期409-414,共6页Mechanics in Engineering

基　　金：河北省高等学校科学技术研究项目(QN2019329);防灾科技学院材料力学金课建设项目(JK202009);中国地震局建筑物破坏机理与防御重点实验室开放基金(FZ211104)资助。

摘　　要：以材料力学中典型的薄壁圆筒应力分析为例,设计了趣味开放实验。基于材料力学和弹性力学基础知识,将该例题结合易拉罐和储气罐等类似结构阐述薄壁圆筒的应力分布,通过理论分析、拉压实验和电测法实验探究了薄壁圆筒的内压和强度,实验结果与理论分析吻合较好。开放实验达成度表明,本项实验具有一定的趣味性和专业性,学生态度积极,综合应用能力有所提高,但也暴露了一些问题,为后续进一步改进开放实验举措提供了有力参考。Taking the stress analysis of a thin-walled cylinder as an example, an open experiment is designed.Based on the knowledge of materials and elasticity mechanics, the stress analysis of the thin-walled cylinder is described to model similar structures such as pop-up can and gas tank. The internal pressure and strength of the thin-walled cylinder are analyzed through theoretical analysis, tension experiment and electrical measurement experiment. The experimental results are in good agreement with those of theoretical analysis. The achievement degree of open experiment shows that this experiment has a certain interest and professionalism. Students have a positive attitude and recognize that the comprehensive application ability has been improved. However,this research also reveals some problems in this experiment. It provides a powerful reference for the further improvement of the open experiment.

关 键 词：开放实验 基础力学 薄壁圆筒 综合应用 

分 类 号：O31[理学—一般力学与力学基础]