1) elastic_plastic dynamic buckling
弹塑性动力屈曲
1.
An increment numerical method is used to analyze the elastic_plastic dynamic buckling of ring_stiffened cylindrical shells under axial fluid_solid impact loading on the basis of discrete stiffeners model,and taking account of large deflections and strain_rate sensitive yielding material properties.
基于“离散加筋”模型 ,考虑了大挠度和材料硬化应变率敏感特性的影响 ,借助增量数值解法研究了环向加筋圆柱壳在轴向流 -固冲击载荷作用下的弹塑性动力屈曲。
3) dynamic plastic buckling
塑性动力屈曲
1.
This paper is concerned in the dynamic plastic buckling of infinite length cylindrical shell which is rested on incompressible ideal fluid and subjected to underwater impulsive loads.
研究置于不可压缩、理想流体液面上无限长圆柱壳在受水下冲击载荷作用下的塑性动力屈曲问题。
2.
In this paper,the energy criterion is used to study the dynamic plastic buckling of cylindrical shells,which are locally subjected to a nonuniform radial impulsive loading.
采用塑性动力屈曲能量准则，对圆柱壳非均匀局部径向冲击下的塑性动力屈曲进行了研究。
4) elastic dynamic buckling
弹性动力屈曲
1.
When a cylindrical shell is subjected to dynamic impulsive loading in radialdirection and the ratio of radius-to-thickness exceeds a special value, the cylindrical shell will produce elastic dynamic buckling.
当圆柱壳承受径向脉冲载荷时，如果其径厚比大于一特定值，圆柱壳将产生弹性动力屈曲。
5) Elastic-plastic buckling
弹塑性屈曲
1.
Elastic and elastic-plastic buckling behavior of SHS steel tube filled with concrete;
钢管填充混凝土后弹性与弹塑性屈曲分析
2.
The finite element analysis software ANSYS was adopted to analyze the elastic-plastic buckling behavior of SPDB with stiffened panel at both edges.
介绍了一种新型的抗侧力结构体系——钢板深梁;利用有限元分析软件ANSYS分析了两侧加劲钢板深梁的弹塑性屈曲性能,讨论了深梁跨高比、宽厚比等参数对钢板深梁屈曲性能的影响。
3.
Former studise generally applied energy methods to anaiyze buckling ofbeam web based on theory of elastic stability, and most of them didn t considerelastic-plastic buckling behavior of beam web.
然而，实际工程中的梁腹板，其在多种应力的联合作用下，不免会有发生弹塑性屈曲的可能。
6) elasto-plastic buckling
弹塑性屈曲
1.
In this paper,the elasto-plastic buckling of simply supported aluminum alloy plates is analyzed and the limit ratio of wide-to-thickness between elastic buckling and elasto-plastic buckling is obtained.
采用有限元方法分析了四边简支铝合金板的弹塑性屈曲 ,得出了铝合金板弹性屈曲与弹塑性屈曲之间的临界宽厚比。
2.
The theoretical and experimental research on the elasto-plastic buckling strength of the web with longitudinal stiffener in I-section steel girder under pure bending was made using energy method and the influence of stiffness of longitudinal stiffener on buckling coefficient of the girder web was analyzed.
对工字钢梁腹板在纯弯作用下的弹塑性屈曲承载能力进行了理论计算和试验研究，并进行了对比分析，着重研究了纵向加劲肋刚度对腹板屈曲系数的影响－ 对现行《钢结构设计规范》（ＧＢＪ１７ － ８８） 的有关条款进行了讨论
3.
A layer model is introduced to shell elasto-plastic buckling analysis.
根据塑性屈曲的Stowell形变理论,用基于切线刚度矩阵的增量法和修正的Newton-Raphson方法,计算屈曲前的弹塑性内力分布,并用逆幂迭代法求解弹塑性屈曲荷载。
补充资料：弹—塑性变分原理
弹—塑性变分原理
elastic-plastic variational principle
tan一suxing bionfen yuanll弹一塑性变分原理(elastie一plastic variation-al Principle)适于弹一塑性材料的能量泛函的极值理论。包括最小势能原理和最小余能原理。塑性加工力学中常用最小势能原理。变形力学问题的能量解法和有限元解法都基于最小势能原理。最小势能原理有全量理论最小势能原理和增量理论最小势能原理。 全量理论最小势能原理在极值路径(应变比能取极值的路径)下运动许可的位移场u‘中，真实的位移和应变使所对应的总势能取最小，即总势能泛涵巾取最小值，其表达式为”一0，’一万〔A(一，一关一〕dV一好多!一‘“ (l)式中“:为位移;户:为外力已知面上的单位表面力;关为体力;A(气)为应变比能。 A(勒)随材料的模型而异。对应变硬化材料(图a)， E严_‘_‘_ A(乓r)一二丁二一气助+{刃(r)dr(2) 6(1一2刃~一“‘J一、-一、- 0式中E，，分别为弹性模量和泊松比;艺一硫瓜，r一掩不万，，，f，一，一音。魔。，，一，一，一音。*。!，;。f，为克罗内克(L.Kroneeker)记号，i=夕时a，一l，i笋少时民，一。，把式(2)代入式(1)便得到卡恰诺夫(几·M·Ka、aHoe)原理x的表达式。i厂:八 I’—几 I’一 ab 乞一乏(r)关系图 a一应变硬化材料;占~理想塑性材料 对于理想塑性材料(图b)， 艺~ZGr(r
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