Based on the dynamical equation, the constitutive relation and the strain-displacement relation, the vibration equation of small deflection beams was derived.
基于动力学方程、本构关系和应变-位移关系建立了小变形粘弹性梁的振动方程。
The element coupling shape function matrices are derived by means of geometrically nonlinear strain displacement relation under small deformation assumption.
利用几何非线性的应变-位移关系式，在小变形假设条件下确定了单元耦合形函数。
The element coupling shape function meatrices are derived by means of geometrically nonlinear strain displacement relation un-der small deformation assumption.
利用几何非线性的应变-位移关系式，在小变形假设条件下确定单元耦合形函数。
The elastic stiffness matrix and the geometrical stiffness matrix for a element of cylindrical shells been established by the relation ship of strain displacement in a lange deflection.
理论上采用大挠度的应变——位移关系，建立了圆柱壳单元的弹性刚度矩阵和几何刚度矩阵。
The relation between the displacement of closing up to punch and strain for each metal particle in deformation region had shown by following the deformation trace of particle.
在跟踪金属质点位移轨迹的基础上，揭示了毛坯变形区各质点贴模位移与应变间的关系，从而明确提出了圆锥形件的成形机理。
Then, an analytical relation between axial average strain (or displacement) and axial compressive stress is obtained, which exhibits size effect.
研究结果表明，这一关系具有尺寸效应。
Then, an analytical relation between axial average strain (or displacement) and axial compressive stress is obtained, which exhibits size effect.
研究结果表明，这一关系具有尺寸效应。
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