| 梁弯曲正应力公式适用条件探讨 |
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| 引用本文： | 韩芳,磨季云,李明方.梁弯曲正应力公式适用条件探讨[J].高师理科学刊,2016(6):92-94. |
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| 作者姓名： | 韩芳 磨季云 李明方 |
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| 作者单位： | 1. 武汉科技大学理学院，湖北武汉 430081; 冶金工业过程系统科学湖北省重点实验室，湖北武汉 430081;2. 武汉科技大学理学院,湖北武汉,430081 |
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| 基金项目： | 冶金工业过程系统科学湖北省重点实验室基金 |
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| 摘 要： | 材料力学和弹性力学作为工科类专业的一门基础课,公式较为复杂.针对材料力学和弹性力学中对梁弯曲正应力推导方式的不同,基于弹性力学有限元理论,采用有限元数值仿真软件模拟不同跨高比条件下梁弯曲正应力的数值解,并与材料力学近似解进行对比和误差分析,得到深梁和浅梁弯曲正应力公式的适用条件,为学生更形象直观地理解知识点提供新的视角.
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| 关 键 词： | 弹性力学 材料力学 弯曲正应力 力学课程 |
Discussion on application conditions of bending normal stressin mechanics |
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| Abstract: | Mechanics of materials and elasticity is an important course for engineeringmajor students as its abstract theory and various formulas.For the differentderivation process of the bending normal stress for deep beam and shallow beam inelastic mechanics and material mechanics,does research on thenumerical solution for the bending normal stressof beamswith differentspan-depthratio based on the softwareand elastic finite element method theory. The simulation results are compared with theanalytical solution and the application conditions of bending normal stress of deep beam and shallow beam are obtained applying a new viewpoint for understanding. |
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| Keywords: | elastic mechanics material mechanics bending normal stress mechanics |
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