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1)  torsional-flexural buckling
弯扭失稳(屈曲)
2)  flexural-torsional buckling
弯扭屈曲
1.
Wagner effect in flexural-torsional buckling of open-profile thin-walled columns;
开口薄壁柱弯扭屈曲时的Wagner效应问题研究
2.
The flexural-torsional buckling of thin-wall open compression members with twin axes eccentrically connecting with multiple elastic supports is studied.
研究了有双轴对称截面开口薄壁压杆与多个弹性支承偏心连接时的弯扭屈曲,把作用在开口薄壁压杆上的弹性支承去掉,代之以相应的未知外力和未知扭矩,采用Laplace变换推导出了开口薄壁压杆弯扭屈曲的位移函数,求得了其弯扭屈曲的特征方程。
3.
Based on the theory of nonlinear finite element of plate and shell,a finite element method of elasto-plastic flexural-torsional buckling of steel members under cyclic loading was presented,and a nonlinear analysis program was complied.
根据板壳非线性有限元基本理论 ,提出了压弯钢构件在循环荷载作用下弹塑性弯扭屈曲分析的有限单元法 ,并编制了计算程序 ,通过将计算结果和其他分析比较 ,对本文的理论进行了验证。
3)  flexural-torsional buckling
弯扭失稳
4)  buckling instability
屈曲失稳
1.
For pined_pined,loosed midpoint support plate,it is found that the plate s buckling instability will happen first while the flutter instability will disappear.
发现板在两端简支、中点联结松动时 ,结构首先出现屈曲失稳 ,而不会发生颤振失稳。
5)  tortuous destabilization
扭曲失稳
1.
The reason of casing tortuous destabilization in rotary liner cement is analyzed in this paper,the mechanical model of casing rotation is built up,and the torque rating and its alteration regularity in the process of cement are calculated.
分析了旋转尾管固井过程中套管扭曲失稳的原因;建立了套管扭转的力学模型;计算了固井作业过程中钻具的扭矩载荷及其变化规律;分析了由于套管扭曲失稳在全井段存在的危险点,并提出了预防措施;从理论上分析了影响旋转尾管固井过程中扭曲失稳的因素,并提出了在设计和施工中减小套管扭矩的措施,对现场应用具有指导意义。
6)  flexural-torsional buckling
弯曲扭转屈曲
1.
This paper represents the analytical process and manual calculation method of the flexural-torsional buckling behavior of thin-walled structure with monosymmetric cross-section in fire condition.
基于著名的Rankine公式研究了火灾情况下单轴对称薄壁热轧槽钢柱弯曲扭转屈曲的计算特性,提出了一种用于计算薄壁槽钢柱抗火性能的方法。
补充资料:弯扭系数
分子式:
CAS号:

性质:又称曲折因子。气体、蒸气分子对薄膜的透过是单分子扩散过程。其大体过程是溶解于固体薄膜中,向低浓度处扩散,在薄膜另一侧蒸发。透过能力的大小由这三个过程中的因素决定,在扩散阶段,就和薄膜的分子结构、极性、气体的种类等等有关。弯扭系数就是给出这些因素的综合的数字式评价。它的物理意义是分子穿经薄膜必须的运动距离除以薄膜厚度所得之商值。

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