失稳

FLD is remarkabaly affected by the strain paths,which brings the inconvenience to industry.And the forming limit stress diagram which established with limit stress is independent on the strain paths and it is more convenient and practical to use as the criterion of forming limit under complex strain paths.

为确定板材拉伸失稳的成形极限，人们从理论和实验等方面提出了许多研究与评价方法，其中最有现实意义和应用最为广泛的是20世纪60年代由Keeler[1]和Goodwin[2]提出的以极限应变构成的成形极限图(forming limit diagram，FLD)的概念。

The Galerkin-finite strip method which is used to solve the flutter problems of plates is proposed.

提出了一种求解板的颤振失稳问题的Galerkin—有限条法。

Relationships among the structural stability、stability、loss of stability and bifurcation are also discussed.

文中还讨论了结构稳定、稳定、失稳和分叉之间的关系。

Isolated case reports have documented rotatory deformities caused by ankylosing spondylitis,5 metastatic tumors,6 generalized ligamentous laxity,2,7 eosinophilic granulomas,2 after a suboccipital craniotomy and C1–C3 laminectomy,8 and a variety of other nondestabilizing procedures involving the head and neck.9

离体病例报告已经证实由强直性脊柱炎[5]、肿瘤转移[6]、全身韧带松驰[2，7]、嗜酸性肉芽肿[2]、枕下开颅术后和C1-C3椎板切除以及各种头颈部失稳矫正手术引起旋转畸形[9]。

The structure is founded in superincumbent strata after mining, namely Incline rock-beam and Instability of structures will affect strata behavior and result in destruction of superincumbent strata.

结构体的存在对于开采过程中的矿压显现产生了显著影响，围岩破坏实质上是由于结构体失稳造成的。

For the south tunnel, the scope of consolidation is determined by analyzing the circular failure surface resulted from the integral landslide.

对南洞按土体整体滑移失稳可能形成的圆弧滑动面来确定加固范围。

Analysis of dynamic instability of interfacial slip waves based on the surface impedance tensor.

基于表面阻抗张量的界面滑移波动态失稳分析。

Frictional contact ; slip wave ; instability ; Stroh formalism ; surface impedance tensor

摩擦接触；滑移波；失稳； Stroh公式；表面阻抗张量

The experiment research on stability of ring stiffened concave cone toroid cylinder combined shell is presented in this paper .

本文对凹型加肋锥-环-柱结合壳稳定性进行了模型试验研究，观察到凹环壳段失稳的一个特殊现象。

The experiment research on stability of ring stiffened concave cone toroid cylinder combined shell is presented .

文章对凹型加肋锥-环-柱结合壳稳定性进行了模型试验研究，观察到凹环壳段失稳的一个特殊现象。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。