1) sideways instability
侧移失稳
1.
Symmetrical instability and sideways instability are the two modes of in-plane instability.
平面内失稳的类型主要有对称失稳和侧移失稳两种。
2) antisymmetric buckling
有侧移失稳
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) one-sided failure
单侧失稳
1.
In this paper, one-sided failure mode of foundation is given, and analytical solutions have been developed for ultimate bearing capacity using limit equilibrium on actual-shear plane.
本文首先建立地基单侧失稳模型,通过对实际滑动面和潜滑动面内各楔块逐个进行静力分析建立极限荷载,该承载力由两类六项承载力系数组成。
5) rollover instability
侧倾失稳
1.
On the approximate calculating method of the rollover instability of the rigid suspender's tied-arch bridge
刚性吊杆的系杆拱桥侧倾失稳近似计算方法
6) drift instability
飘移失稳
1.
In this paper, a simple measure for eliminating the drift instability of the multi-transmitting formula in numerical simulation of wave motion is first presented based on a physical interpretation of GKS stability criterion in the numerical solutions of initial-boundary value problems of the hyperbolic partial differential equation.
基于对双曲型偏微分方程数值解稳定性的ＧＫＳ（Ｇｕｓｔａｆｓｓｏｎ， Ｋｒｅｉｓｓ ａｎｄ Ｓｕｎｄｓｔｒｏｍ）准则的物理解释，本文提出了在波动数值模拟中消除多次透射公式飘移失稳的一卜简单措施，并用波源问题和散射问题的数值试验检验了建议的稳定措施的有效性。
2.
One type of the numerical instabilities, the drift instability, in implementation of MTF into the numerical simulation by the time-step integration is studied and results in a simple measure for eliminating this type of instability based on a physical interpretation of GKS stability criterion on numerical solutions of initia L-boundary value problem.
基于对双曲型偏微分方程数值解稳定性的 ＧＫＳ （Ｇｕｓｔａｆｓｓｏｎ， Ｋｒｅｉｓｓ ａｎｄ Ｓｕｎｄｓｔｒｏｍ）准则的一种物理解释，提出了在波动数值模拟中消除多次透射公式飘移失稳的一个简单措施，并用波源问题和散射问题的数值试验检验了这一措施在稳定实现多次透射公式中的有效性。
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