主要研究了楔形变截面压杆绕弱轴的弹塑性弯曲失稳。
The elastoplastic bending instability of the tapered compression members under axial loads about the weak axis is mainly studied.
对SP侧压过程中板坯的塑性变形情况，及板坯尾部的失稳弯曲进行了理论分析。
The plastic deformation of the slab being pressed by sizing press(SP) is expounded, and the bending of the slab end is theoretically analyzed as well.
钻井界普遍认为，在弯曲的井眼中钻柱不会发生失稳现象，但未见到详细的理论论证。
The drilling circles generally considers that for the drill stem in crooked hole, the phenomenon of losing stability will not happen, but a detail theoretical proof is not seen.
为避免钢混凝土连续组合梁发生局部失稳，对负弯区钢梁腹板在弯曲应力、轴向压应力和剪应力联合作用下的力学性能进行了研究。
The mechanical behavior of steel webs with negative bending was studied with combined stress loads of flexure, axial pressure and shear to prevent local buckling in continuous composite beams.
深井小尺寸套管下入遇阻时，随着下放力的增加，将产生失稳弯曲。
The bending failure stability accrued with the increase of the running load, when the small size casing, which was run into the wellbore under the deep well, encountered the resistance.
在理论分析的基础上，提高了压紧辊的间隙，减少了失稳弯曲。
On the theoretical basis, the compressing roll gap was increased and buckling was reduced.
阐述单轴对称截面轴心受压构件弯曲屈曲和弯扭屈曲两种失稳形式，以及绕截面对称轴弯扭屈曲换算长细比的计算方法和应用实例。
The flexural buckling and flexural-torsional buckling modes of a monosymmetric section column are presented and the equivalent slenderness ratio for flexural-torsional buckling is derived.
本文通过四点弯曲试验研究了含脱层的蜂窝夹芯板在纯弯载荷作用下的局部屈曲模式和破坏模式，指出局部屈曲模式是跳跃失稳模式。
The modes of local buckling and general failure for honeycomb sandwich plates under pure bending loads are studied through four-point bending tests.
前言：板坯调宽侧压过程中常出现失稳弯曲及头尾部鱼尾过长现象，降低了产品的成材率。
The buckling and "fish tail" are often occurred in sizing press, which can reduce the metal yield.
结构失稳的类型有很多种，其中直梁在竖向荷载的作用下，结构发生了较大的竖向弯曲变形和侧向扭转变形，而导致结构失稳称为梁的侧扭屈曲。
When vertical loads applied to a straight beam, the structure will have large bending and torsion and lose steady, this phenomenon is called lateral torsion buckling.
现场经验及模型实验表明，煤巷锚杆支护中有时出现锚固体的弯曲突变失稳现象。
Field experience and similar material simulation indicate that there is the bending catastrophe phenomenon of anchor roof beam in bolting roadway sometimes.
陡倾外层状岩石边坡由于滑移-弯曲变形所形成的滑坡是石灰岩山区高速公路挖方边坡失稳的一种复杂的地质模式。
The failure of steep overdip stratified slope is generally caused by slidingbending in unstable cutting slopes of highway in limestone mountainous area.
分析了平巷煤壁中预存裂纹尖端产生翼型张裂纹，形成薄煤层壳，薄煤层壳弯曲变形失稳引发冲击地压的机理。
The formation of thin coal shell that is formed by aerofoil cracks engendered at the tip of primary cracks in the entry's surrounding coal is analysed.
分析了平巷煤壁中预存裂纹尖端产生翼型张裂纹，形成薄煤层壳，薄煤层壳弯曲变形失稳引发冲击地压的机理。
The formation of thin coal shell that is formed by aerofoil cracks engendered at the tip of primary cracks in the entry's surrounding coal is analysed.
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