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first order shear deformation plate theory
相关语句
  一阶剪切变形板理论
     Based on Reissner Mindlin first order shear deformation plate theory, the bending analysis for an initially stressed, moderately thick rectangular plate with point supports was presented.
     基于Reissner-Mindlin一阶剪切变形板理论,讨论在预加面内机械荷载或温度场作用下,点支撑中厚矩形板的弯曲问题。
短句来源
  一阶剪切变形理论
     The results were compared with those of the first order shear deformation plate theory,and the effects of material and geometric parameters and foundation stiffness on the forced vibratrion were discussed.
     把所得的结果与一阶剪切变形理论做了比较 ,并讨论了材料、几何参数、地基刚度系数对动力响应的影响
短句来源
  “first order shear deformation plate theory”译为未确定词的双语例句
     The formulations are based on Reissner-Mindlin first order shear deformation plate theory and include the plate-foundation interaction and thermal effects.
     因为有些基础并不能提供拉力,在此种情况下,板的一部分会与基础分离,两者之间的变形将不再连续。 对于四边自由矩形板,板与基础的接触范围受到很多因素的影响,例如板与基础的相对刚度、荷载的最大幅度等等,不可能事先确定板与基础接触的范围和大小。
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  first order shear deformation plate theory
A finite element model that combines the von Karman strains with the first-order shear deformation plate theory is developed.
      


The generalized Karman equations governing large deflection of laminated shear deformable rectangular plates are presented based on the Karman type refined plate theory(KTRPT). Reduced forms of the generalized Karman equations are discussed for special circumstances. According to the nonlinear Karman equations, buckling and postbuckling behaviors of laminated shear deformable square and rectangular plates with four edges simply supported are studied by using a deflection...

The generalized Karman equations governing large deflection of laminated shear deformable rectangular plates are presented based on the Karman type refined plate theory(KTRPT). Reduced forms of the generalized Karman equations are discussed for special circumstances. According to the nonlinear Karman equations, buckling and postbuckling behaviors of laminated shear deformable square and rectangular plates with four edges simply supported are studied by using a deflection type perturbation technique. Specific examples are made to compare the present predictions with other theoretical and numerical results. It is shown that the present Karman type first order shear deformation plate theory is of high accuracy.

基于Karman型精化理论,给出了层合复合材料剪切板的广义Karman大挠度方程,并讨论了该方程在各种特殊情况下的一系列退化形式.依据非线性Karman方程,运用位移型摄动技术研究了单向轴压四边简支层合剪切方板和矩形板的屈曲和后屈曲性态.给出了针对几种特殊情况的典型算例,并与其他理论结果和数值解作了比较.分析显示Karman型一阶剪切板理论具有较高的精度.

Delamination is one of the most frequently encountered types in structures of composite laminates. Local buckling and growth of delamination under compressive loads will decrease the strength and stiffness greatly. Bending problem of delamination includes compressive problem of delamination and it is more complicated than the later. In this paper, a finite element method is used to analyze the postbuckling problem of laminatien with through-width de-lamination under pure bending loads. The one-dimensional nonlinear...

Delamination is one of the most frequently encountered types in structures of composite laminates. Local buckling and growth of delamination under compressive loads will decrease the strength and stiffness greatly. Bending problem of delamination includes compressive problem of delamination and it is more complicated than the later. In this paper, a finite element method is used to analyze the postbuckling problem of laminatien with through-width de-lamination under pure bending loads. The one-dimensional nonlinear geometric finite element model is developed based on the first-order shear deformation plate theory. The individual components of energy release rate are obtained according to virtual crack closure technique, and the critical initial growth loads are obtained from a certain delamination growth rule.

脱层是复合材料层板结构中主要的缺陷形式之一。当脱层层板受到压力载荷的作用会造成脱层的局部屈曲和扩展,从而使结构的强度和刚度大为降低。含脱层层板的弯曲问题包含了脱层的压缩问题,却比压缩问题更加复杂。本文对含穿透脱层层板在纯弯载荷作用下的后屈曲问题进行了基于一阶剪切层板理论的几何非线性有限元分析,运用虚裂纹闭合技术求解了纯弯载荷作用下的脱层尖端的能量释放率各型分量,并用脱层扩展判据求解了脱层起始扩展载荷。

A new refined first_order shear_deformation plate theory of the Karman type is presented for engineering applications and a new version of the generalized Karman large deflection equations with deflection and stress functions as two unknown variables is formulated for nonlinear analysis of shear_deformable plates of composite material and construction, based on the Mindlin/Reissner theory. In this refined plate theory two rotations that are constrained...

A new refined first_order shear_deformation plate theory of the Karman type is presented for engineering applications and a new version of the generalized Karman large deflection equations with deflection and stress functions as two unknown variables is formulated for nonlinear analysis of shear_deformable plates of composite material and construction, based on the Mindlin/Reissner theory. In this refined plate theory two rotations that are constrained out in the formulation are imposed upon overall displacements of the plates in an implicit role. Linear and nonlinear investigations may be made by the engineering theory to a class of shear_deformation plates such as moderately thick composite plates, orthotropic sandwich plates, densely stiffened plates, and laminated shear_deformable plates. Reduced forms of the generalized Karman equations are derived consequently, which are found identical to those existing in the literature.

依据Mindlin_Reissner理论 ,着重研究一阶剪切板的K rm n型精化理论 ,并推导出仅以挠度和应力函数为未知变量的广义K rm n型大挠度方程 ,适用于复合材料上复合构造剪切板的非线性分析· 在当前板的精化理论中 ,消去的两个转角以隐含形式作用于板的整体变形· 这一工程理论适用于各种计及横向剪切复合材料板、正交各向异性中厚板和夹层板等的线性和非线性分析· 容易发现 ,针对具体的工程应用 ,由该方程可直接获得相应的退化形式 ,并且与文献所载的一致· 

 
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