全文获取类型
收费全文 | 80篇 |
免费 | 0篇 |
国内免费 | 1篇 |
专业分类
力学 | 71篇 |
数学 | 10篇 |
出版年
2023年 | 2篇 |
2022年 | 1篇 |
2021年 | 1篇 |
2019年 | 1篇 |
2018年 | 1篇 |
2016年 | 2篇 |
2014年 | 4篇 |
2013年 | 2篇 |
2012年 | 3篇 |
2011年 | 2篇 |
2010年 | 2篇 |
2008年 | 1篇 |
2007年 | 3篇 |
2006年 | 5篇 |
2004年 | 1篇 |
2003年 | 2篇 |
2000年 | 2篇 |
1999年 | 3篇 |
1998年 | 2篇 |
1997年 | 6篇 |
1996年 | 4篇 |
1995年 | 7篇 |
1994年 | 3篇 |
1993年 | 1篇 |
1992年 | 3篇 |
1991年 | 10篇 |
1990年 | 3篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1985年 | 2篇 |
排序方式: 共有81条查询结果,搜索用时 15 毫秒
1.
复合结构剪切板的屈曲与后屈曲研究 总被引:11,自引:0,他引:11
基于Reissner剪切板理论,本文将现有理论模型推进了一步,导出了控制复合材料和构造矩形板平衡的广义Karman大挠度方程。此外,运用摄动技术,构造了一个单向压缩简支剪切矩形板的后屈曲渐近解,适用于面板和夹心材料都具正交各向异性的夹层板以及计及横向剪切变形对称铺设的层合板。文中给出了典型算例,并将当前结果与其它理论或数值解作了比较,显示出相当好的一致性。 相似文献
2.
在大位移和扭转的前提下,通过一中等弯曲扭转的位移场描述了薄壁箱形梁在偏心载荷作用下的静稳定性问题.该非线性公式可用于分析简支薄壁箱形梁在不同载荷作用下的屈曲和后屈曲行为.采用伽辽金方法将非线性微分系统离散,并通过牛顿-拉普森增量迭代法求解得代数方程组.数值计算结果表明,当前屈曲位移不可忽略时,经典的横向屈曲预测是保守的... 相似文献
3.
4.
Summary The post-buckling behavior of imperfect columns made of nonlinear viscoelastic materials is investigated, taking into account
the effect of shear deformation. The material is modeled according to the Leaderman representation of nonlinear viscoelasticity.
Solutions are developed, within the elastica and the shear deformation theories, in order to calculate the growth in time
of the total deflection. The numerical results establish the importance of the shear and the nonlinear viscoelasticity effects,
and of the h/ℓ ratio in the column post-buckling behavior.
Accepted for publication 11 November 1996 相似文献
5.
Post-buckling of a clamped-simply supported elastica 总被引:3,自引:0,他引:3
C.Y. Wang 《International Journal of Non》1997,32(6):1115-1122
The complete post-buckling and large deformations of an elastica rod, one end fixed and one end pinned, is studied through perturbations near bifurcation, asymptotic analysis for large loads and a numerical integration scheme. The bifurcation curve is not monotonic. The post-buckling behavior exhibits non-linear phenomena such as limit load, non-uniqueness, hysteresis, and violent jumps. 相似文献
6.
Thermal post-buckling paths of homogeneous, isotropic, square plate configurations resting on elastic foundation (Winkler type) subjected to biaxial compressive thermal loads are expressed as simple closed-form solutions by using the Rayleigh–Ritz method based on coupled displacement fields. Geometric non-linearity of von-Karman type is considered. The in-plane displacement field variations used in the formulation of Rayleigh–Ritz method are derived by using the governing in-plane static differential equations of the plate which in turn simplifies the difficulty of assuming an in-plane displacement field variations of the square plate. Accuracy and robustness of the proposed closed-form solutions are demonstrated by using the non-linear finite element formulation results which are obtained from an equilibrium path approach. 相似文献
7.
The mathematical model for radial transport of a solute is summed up in this paper. The action of non-equilibrium linear adsorption, the double property of porous media and the decay of solute are considered. With the first kind of boundary condition, one finds the analytical solution of these equations by Laplace transform and calculates the dimensionless solution by FORTRAN program with DJS-040. The distribution and change of solute are evaluated and the solution under various limit cases is given. By numerical analysis, one obtains some valuable conclusions. 相似文献
8.
Cheng Yaoshun 《Acta Mechanica Solida Sinica》1997,10(2):118-130
The asymmetric initial post-buckling corresponding to the lowest bifurcation load andthe imperfection sensitivity are analysed in detail for a compressed simply supported column with anequilateral triangular cross-section in the plastic range.The effect of elastic unloading is taken into ac-count in the analysis.The asymptotic relations,including high order terms,among the load,the am-plitude of imperfection and the amplitude of the bifurcation mode are realized.The results show thatthe maximum supported load is very sensitive to imperfection. 相似文献
9.
The non-linear governing differential equations of immovably simply supported functionally graded material (FGM) rod subjected to thermal loads were derived. The thermal post-buckling behaviors of FGM rod made of ZrO2 and Ti-6Al-4Vwere analyzed by shooting method. Firstly, the thermal post-buckling equilibrium paths of the FGM rod with different gradient index in the uniform temperature field were plotted, and compared with the behaviors of the homogeneous rods made of ZrO2 and Ti-6A1-4V materials, respectively. For given value of end rotation angles, the influence of gradient index on the thermal post-buckling behaviors of FGM rod was discussed. Secondly, the thermal post-buckling characteristics of the FGM rod were analyzed when the temperature difference parameter is changed while the bottom temperature parameter remains constant, and when the bottom temperature parameter is changed while the temperature difference parameter remains constant, and compared with the characteristics of the two homogeneous material rods. 相似文献
10.
Thermal post-buckling of an elastic beams subjected to a transversely non-uniform temperature rising 总被引:2,自引:1,他引:1
IntroductionAxiallycompressedstresseswilloccurinaconstrainedelasticbeamsubjectedtoatemperaturerising .Ifthemagnitudeofthecompressedstressesexceedacertainlimit,thermalbucklingoftheheatedbeam ,whichisoutofitsinitialconfiguration ,willtakeplace .So ,investigationsonthermalbucklingofrodsandbeamsareverynecessaryandimportantforthedesignofstructuresworkinginhightemperatureenvironmentsandofsomethermalsensitiveelasticelements.Becausethermalelasticpost_bucklingofbeamsandrodsareinducedbythethermallyaxial… 相似文献