1) circumferential buckling
环向失稳
2) Cross deformation
横向失稳
3) lateral buckling
侧向失稳
1.
Meanwhile,not only the webs are likely to have local buckling,but also the compressed flanges are likely to have lateral buckling in the region of negative bending moments.
对于组合梁正弯矩区段,主要发生腹板局部屈曲;对于负弯矩区段,不但可能发生受压翼缘的侧向失稳,而且也可能发生腹板的局部屈曲。
2.
Based on the theoretical analysis of steel-concrete composite box-beams’ lateral buckling,computational model on the stability of composite box-beams are proposed.
本文通过对组合箱梁侧向失稳形式的理论分析,提出组合箱梁稳定性分析的计算模型,采用能量法对钢-混凝土组合箱梁负弯矩区的侧向稳定性进行探讨,推导在等端弯矩作用下组合箱梁在弹性受力阶段时的临界失稳弯矩计算公式,确定箱型组合梁负弯矩区稳定设计的修正方法和建议意见,通过研究对比表明本文提出的计算公式比现行组合梁的稳定理论和计算方法具有更高的可靠性和经济性。
3.
And this dissertation studies the stability of composite beam in the following aspects:1) Based on the theoretical analysis of steel-concrete composite box-beams\' lateral buckling, analytical model on the stability of composite box-beams is put forward, and the formula which is used to calculate critical bending moment in negative bending regions is deduced.
钢—混凝土组合箱梁的侧向失稳和局部失稳是影响承载能力的重要因素。
4) Radial unstabilization
辐向失稳
5) axial instability
轴向失稳
1.
new structure of shaft lining with its cross section varying with the depth of shaft lining which was for the first time introduced in drilling deep shaft;calcula- tions to avoid axial instability of the shaft lining in erection when it is floating down.
综合介绍我国深井钻井法凿井技术的发展和成就；在钻机设备、破岩刀具及钻井泥浆等钻进技术上的突破,概括阐述了在深井钻井法井筒支护中,首次采用沿深度改变井壁断面的新结构；验算预防井壁悬浮下沉安装中的轴向失稳；预留泄水孔解决复合井壁内层钢板“鼓包”等关键技术,分析徐淮地区部分井筒井壁局部破裂的原因,提出设防见解。
6) radial instability
径向失稳
补充资料：裂纹失稳扩展
分子式：
CAS号：
性质：材料内部裂纹尖端的应力场强度因子达到或超过材料的断裂韧性之后发生的裂纹快速扩展。裂纹失稳扩展将导致材料迅速断裂。
CAS号：
性质：材料内部裂纹尖端的应力场强度因子达到或超过材料的断裂韧性之后发生的裂纹快速扩展。裂纹失稳扩展将导致材料迅速断裂。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条