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| 引用本文： | 虞爱民,舒伟杰,朱金龙,鲁书浓,侯顺龙.??????????——-??????????????????????[J].力学与实践,2009,31(2):89-91. |
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| 作者姓名： | 虞爱民 舒伟杰 朱金龙 鲁书浓 侯顺龙 |
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| 作者单位： | 1. 同济大学航空航天与力学学院;2. ; |
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| 基金项目： | 国家自然科学基金(10572105);;上海市重点学科建设(B302)资助项目. |
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| 摘 要： | 研制和开发了曲梁以及复合曲梁测量应力的创新实验装置，
通过该实验的设计、开发和应用，可以验证它的创新性和综合性，找出曲梁、复合曲梁与直
梁的诸多不同之处. 把该实验用于测试由钢制成的、钢与铜两种材料制成的，具有直角梯形
截面的简支梁在拱顶处受垂直集中力作用时的正应力和切应力，计算结果表明，理论解和实
验值吻合得很好.
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| 关 键 词： | 创新实验 曲梁 复合曲梁 正应力 切应力 |
| 收稿时间： | 2008-5-29 |
| 修稿时间： | 2008-7-29 |
A NEW MECHANICAL EXPERIMENT-MEASUREMENT OF STRESSES IN HOMOGENEOUS CURVED BEAMS AND COMPOSITE CURVED BEAMS |
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| YU Aimin
,
SHU Weijie
,
ZHU Jinlong
,
LU Shunong
,
HOU Shunlong.A NEW MECHANICAL EXPERIMENT-MEASUREMENT OF STRESSES IN HOMOGENEOUS CURVED BEAMS AND COMPOSITE CURVED BEAMS[J].Mechanics and Engineering,2009,31(2):89-91. |
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| Authors: | YU Aimin SHU Weijie ZHU Jinlong LU Shunong HOU Shunlong |
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| Affiliation: | 1. School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China;2. ; |
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| Abstract: | A new experiment equipment of measuring stress for homogeneous curved beams and composite curved beams is developed. This achievement of scientific research will be applied to educational experiment. Problems in engineering structures are introduced in the new experiment. Hence, it provides with an opportunity for students to improve their practical ability. The differences of curved beams, composite curved beams and straight beams can be found in the experiment. The present equipment can be used to measure the normal and shear stresses in simply supported curved beam made of steel and composite curved beam of steel and copper with trapezoid cross sections. The concentrated force is applied at the arch top of the curved beams. Good agreement between the experiment measurements and theoretical solutions is found. |
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| Keywords: | new experiment curved beam composite curved beam normal stress shear stress |
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