初始变形 meaning in English
initial deformation
Examples
- The effects of lateral pressure and plate buckling mode are taken into account . when the tripping taking place , average stress - strain curves begin load shedding according to empirical formula
主要区别在于所用的单元性能曲线有所不同，以及对初始变形、残余应力和侧向载荷等影响因素的处理方法也各不相同。 - This method was first used by smith . firstly , it needs to separate the girder hull into many elements - compressive one and tension one . secondly , when the ship is in hogging or sagging , you should assume one curvature value so you can get the moment value of every element
目前已有的各种简化方法，其基本原理都是相同的，主要区别在于所用的单元性能曲线有所不同，以及对初始变形、残余应力和侧向载荷等影响因素的处理方法也各不相同。 - Because the structural interpretation of the 3d model only is of non - uniqueness and uncertainty due to geometric constraint , the finite strain analysis was also applied in the structural interpretation . 184 oriented samples have been drilled at 18 sampling sites in yanjinggou , western sichuan
在川西盐井沟地区18个采样点钻取了184块定向岩心样品，通过磁组构的分析结果发现，盐井沟地区的磁组构基本上都是弱应变的初始变形组构，褶皱前翼应变强度比后翼略强。 - The cold - formed square hollow section columns are widely used in various structures such as building structure , trusses , space frames and offshore plates etc . this paper is mainly doing the research on load carrying capacity of the cold - formed square hollow section columns under axial load , the paper includes the following main contents : ( 1 ) an elastic buckling stress for cold - formed square hollow section is presented by finite element analysis , and is compared with the result given by classical elastic buckling theory ; ( 2 ) the elastic - plastic non - linear behavior of the cold - formed square hollow section columns analyzed by ansys is presented ; ( 3 ) by using material model , and geometry nonlinear analysis , the cold - formed effect to stub columns of cold - formed square hollow section is studied ; ( 4 ) by using an material model , the geometry nonlinear analysis , the influence of initial geometrical imperfection to stub columns of cold - formed square hollow section is also analyzed ; ( 5 ) the load carrying capacity of the cold - formed square hollow section columns , which are including the cold - formed effect and influence of initial geometrical imperfection is analyzed by non - linear finite element , and the theoretical analysis results are compared with the results of experimental study and the results calculated by specification gb50018 - 2002
冷弯方管作为轴心压杆广泛用于房屋结构、桁架、网架、塔架以及海洋平台等结构中，本文主要研究轴心受压冷弯方管的承载力性能，内容主要包括以下一些： ( 1 )对冷弯方管的弹性临界应力进行有限元分析，并与经典理论结果进行对比，以验证有限元程序的适应性； ( 2 )阐述冷弯方管采用有限元弹塑性非线性分析理论及应用ansys软件的非线性分析方法； ( 3 )采用弹塑性模型，考虑几何非线性及材料非线性，对不同宽厚比的轴心受压冷弯方管柱的冷弯效应进行有限元非线性分析研究； ( 4 )考虑冷弯效应对屈服应力的影响，对不同宽厚比的轴心受压冷弯方管短柱在不同初始变形下的承载力性能进行有限元非线性研究； ( 5 )考虑冷弯效应、几何初始变形，对不同长细比和不同宽厚比的轴心受压冷弯方管长柱的承载力性能进行有限元非线性研究，并与试验结果以及我国现行规范gb50018 ? 2002计算结果进行对比分析。 - Some calculation indicated that general - purpose programs can predict load carrying capacity of a ship ' s hull accurately if one take sufficiently into account every load and boundary combination , structure imperfections and initial stresses , together with geometric and material non - linearity . in this thesis , the load carrying capacity of several hull or hull models have been analyzed by using the general - purpose program ansys , and some detailed results are obtained
一些已有的计算分析表明，对于大型通用有限元软件，只要合理地模拟结构的受载方式，模拟材料的非线性性能，采用合理的单元类型和网格尺度，并综合考虑极限强度分析的各种因素(如结构的残余应力、初始变形、材料的非线性性能等) ，通用有限元程序也能获得精确的船体结构的极限承载能力。