材料力学理论在圆杆截面优化中的简单应用

当固定圆杆横截面积时,如何设计杆件的横截面可使其具有较强的抵抗失效与破坏的能力?针对这一问题,通过研究拉压、扭转和弯曲等载荷形式,分析了截面形状对圆杆强度、刚度和稳定性的影响。结果表明,杆件截面形状与尺寸的变化对其强度、刚度和稳定性具有很大的影响。

When the cross-sectional area of a circular rod is fixed,how to design the cross-section of the rod so that it has a strong ability to resist failure and destruction?Aiming at this problem,the influence of section shape on the strength,stiffness and stability of the circular bar is analyzed by studying the load forms such as tension,compression,torsion and bending.The results show that the strength,stiffness and stability of the member are greatly affected by the change of the cross section shape and size.