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• By using Rayleigh-Ritz variation method under additional restrain conditions, the formula of critical loads of elastic buckling is obtained.

方法应用附加约束条件下变分瑞利-里兹推导弹性屈曲临界荷载计算利用方法进行了验证。

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• This article adopted Ritz method and divide-fit mathematical method, solved the problem of elastic buckling of thin plate under compression and bend multiplicity action.

采用里兹切分数学方法讨论单向压缩弯曲共同作用薄板弹性屈曲问题

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• The major purpose of the paper was to investigate the resistance capability of plates to local buckling in concrete filled steel tube by elastic buckling analysis of steel plates.

通过对钢管混凝土中外包钢管板件屈曲弹性分析目的在于研究钢管混凝土钢板屈曲能力

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• Second, the elastic deformation, the elastic stress distribution, and the local and global elastic buckling modes were calculated and presented.

其次计算描述了槽型舱壁在侧向水压力作用下的弹性变形弹性应力分布以及舱壁局部总体弹性屈曲模式

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• The analysis and contrast of deformation pattern, state of stress, plastic deformation history, plastic limit load and limit load of elastic buckling are analyzed and contrasted.

最后对三种结构型式的拱顶储罐变形方式应力状态塑性变形历史塑性极限压力弹性失稳临界压力进行了分析对比

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• A shallow shell model is developed for the elastic buckling of a single wall carbon nanotube under a uniform external axial pressure by using the nonlocal elastic theory.

基于非局部弹性理论，在考虑小尺度效应影响的情况建立纳米管均匀轴向外部压力壳体模型

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• Besides static strength, the problem of optimization and design was studied when the failure took place owing to structural linear elastic buckling in this paper also.

开展结构强度优化设计同时元件在线弹性范围内的屈曲可靠性优化设计问题做了初步研究

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• The regression formulae were obtained to determine elastic buckling coefficients of the forementioned rectangular plates.

得到各种情况下矩形屈曲系数近似公式

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• Different strategies for pre-and post-buckling simulation are given and discussed, which are successfully applied in the analysis of elastic buckling of space steel structures.

验证有限质点动不定结构运动行为模拟中的有效性空间结构机构化破坏过程进行了分析

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• Some analytic method was used to derive the formula for calculating the elastic buckling load, such as static equilibrium method, energy method and dynamic method, etc.

通过大量计算分析工作，总结出了可用于单肢墩弹性稳定计算的变截面折减系数，同时对双肢墩面内稳定的计算也给出了简化计算的建议。

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• The thesis extends a matrix perturbation theory in structural vibration analysis to be used in the structural elastic buckling analysis.

结构动力分析中的矩阵摄动有限元法推广结构弹性屈曲分析，给出几个结构例。

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• The efficiency of the elastic buckling matrix perturbation method is proved by calculating numerical examples.

数值试验表明弹性屈曲矩阵摄动算法有效性

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• The structural linear elastic buckling analysis has also been carried out to prove the good stability of the structure.

整体线弹性屈曲分析进一步验证结构具有良好稳定性

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• It is confirmed that both rise-to-span ratio and slenderness ratio influence the elastic buckling load.

指出了必须同时考虑长细比对屈曲荷载影响

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• Based on the numerical studies, elastic buckling coefficients of slotted steel plate shear walls with and without edge stiffeners are proposed and some h.

两侧加劲钢板剪力给出用于其设计屈曲系数公式，两侧加劲钢板剪力给出具有参考价值的设计建议

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• The stability of arch dam against elastic buckling has always been ignored.

拱坝屈曲稳定性一直重视的问题。

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• In this paper, the elastic stability of reinforced concrete silo shell roof is analyzed using finite-element model. The elastic critical buckling loads of the shell roof are calculated.

本文有限元模型分析钢筋混凝土浅圆仓仓弹性稳定性计算了其屈曲临界荷载

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• The elastic plastic buckling analysis is completed on bucking load and buckling mode of thin wall cylindrical shells fully filled with liquid under axial compression.

充满液体薄壁圆柱经受轴向压缩时的屈曲载荷屈曲模态进行塑性屈曲分析

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• In this paper, the elastic dynamic buckling problem of a finite length perfect barsubjected to axial step load is studied.

研究了有限理想直杆阶跃载荷作用弹性动力屈曲问题

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• This paper presents an elastic nonlinear buckling analysis of a kind of steel structure hybridized by I section arch and tensile cables.

本文应用非线性有限元方法研究结构平面内稳定问题

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• The strength of the junction may be limited by plastic collapse of the junction or by elastic or plastic buckling of the ring.

转折连接主要破坏模式包括塑性破坏弹性塑性屈曲

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• The finite element analysis software ANSYS was adopted to analyze the elastic-plastic buckling behavior of SPDB with stiffened panel at both edges.

利用有限元软件ANSYS分析梭形三肢钢管格构柱的几何参数弹性屈曲荷载屈曲模态影响。

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• The dynamic buckling of elastic structures, such as beams and plates, when subjected to an axial impact at one end, is studied in the present paper based on the theory of stress wave propagation.

本文借助于应力传播规律研究了弹性结构冲击载荷作用下动态屈曲问题。

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• Secondly, a classical elastic flexural-torsional buckling tests on arch is introduced, which is simulated by shell element SHELL63 and beam element BEAM189 of commercial software ANSYS.

其次介绍了一个经典弹性屈曲试验采用有限元商业软件ANSYS中的SHELL63单元BEAM189单元分别进行了模拟

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• The authors not only obtain a catastrophic model of vibrational buckling of elastic arches, but also give the critical condition of losing stability.

作者不仅得到弹性振动突变模型而且给出发生条件

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• The elastic-plastic lateral buckling of simple supported thin beams of rectangular cross-section, loaded by axial force and bending moment, is studied.

本文讨论弯矩联合作用下两端矩形截面薄梁塑性侧向屈曲问题。

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• The elastic-plastic lateral buckling of simple supported thin beams of rectangular cross-section, loaded by axial force and bending moment, is studied.

本文讨论弯矩联合作用下两端矩形截面薄梁塑性侧向屈曲问题。

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