The results indicate that FEM can realize the complex strain paths and different strain paths will affect the result of sheet metal forming greatly.
研究结果表明：有限元数值模拟可以实现复杂应变路径； 应变路径的不同对冲压成形的结果有很大影响。
Strain-based FLD is strongly affected by the strain path and has brought much inconvenience to the study of forming limit under complex strain paths.
因极限应变构成的FLD受应变路径的影响很大，在研究复杂应变路径的成形极限问题时带来极大不便。
The thesis validates through actual experiments that FLSD is much more reliable and effective than the strain-based FLD in determining the multistage part formability under complex strain paths.
本文通过实例验证了FLSD在判断复杂应变路径下的多道次零件成形比基于应变的成形极限图更加可靠、有效。
The plane displacement of hyperelasticity was discussed. Aimed at a complex strain energy density function, a group of hyperelasticity governing equations defined on initial configuration were solved.
针对一种复杂的应变能密度函数形式，在平面位移情况下，对定义在初始构形上的超弹性基本方程进行了直接的解析求解。
Because the forming process is complex, the stress field and strain field of forming process is difficultly defined by experimental method.
由于其成形过程复杂，变形过程的应力场和应变场很难用实验方法确定。
It is difficult to calculate theoretically the exact distribution of the stress and strain because of the complex structure of landing gear.
由于起落架的结构比较复杂，很难通过理论计算得出准确的应力应变分布。
Three dimensional nonlinear and isoparameter FEM has been successfully used to simulate the transient temperature field, phase transformation, stress and strain of complex components during quenching.
采用非线性等参元三维有限元算法（FEM）成功地模拟了形状复杂的零件淬火过程中瞬态温度场、相变、应力和应变，获得直观的立体图象。
It is found that the real seismic activity seems much more complex than the simple pattern as described by the accelerating strain release model.
对于同一个地震事件，考虑了多个不同的时间和空间尺度，结果表明，中强震前的地震活动性远比用简单的应变加速释放模型来描述复杂得多。
Measuring the dynamic strain involves the constant modification of gain, as determined by the signal amplitude. This practice suffers from the complex test and the low accuracy.
在动态应变信号测试中，经常需要根据信号的幅值不断调整放大器的放大倍数，测量电路复杂，精度低。
The concepts of stress complex number and strain complex number and inertia complex number are presented in this paper.
文章提出应力复数、应变复数和惯性复数的概念，得到一个复数方程式，即复数莫尔圆方程。
The experiment results show that composites with large braiding Angle have complex crack forms under uniaxial tensile loading and the tensile stress-strain curves take on nonlinear characters.
实验数据表明：大编织角复合材料在单向拉伸作用下的破坏形式较为复杂，其应力-应变曲线呈现非线性特性。
The pressing assembly is complex nonlinear mechanics, the stress and strain are difficult to be calculated analytically, and assembly principles is difficult to be mastered.
压合装配是一个复杂的非线性力学问题，其应力应变难以用解析方法计算，装配机理难以掌握。
Complex number method for plane stress analysis and plane strain analysis is proposed by means of introducing the concepts of stress complex number and strain complex number in this paper.
通过引入应力复数和应变复数的概念，提出了平面应力分析和平面应变分析的复数方法。
The solution of the Earth elastic dynamical equations can be also referred to some relations of complex vector spherical harmonic functions to the elastic strain tensor in spherical coordinates.
同时还研究了在球坐标系下弹性应变张量与复数矢量球函数的一些关系，为地球弹性动力学方程的解算提供参考。
The efficacy and stability of the complex glutaraldehyde disinfectant was tested in inactivating avian (influenza) virus H9N2 strain (AIV H9N2).
研究了一种复方戊二醛消毒剂对鸡禽流感病毒(AIVH9N2株)的杀灭效果及稳定性。
This shows that interface curves becomes more and more complex. This may be due to the distribution of stress and strain, oxide, condition of interface and so on.
这可能是由于应力应变分布、氧化物、界面结合情况改变等综合因素造成的结果。
This paper studied the identification of the S024-strain of Actinomycetes and its complex mutative breeding .
本文主要对S024菌株进行种类鉴定和高产菌株选育研究。
This paper studied the identification of the S024-strain of Actinomycetes and its complex mutative breeding .
本文主要对S024菌株进行种类鉴定和高产菌株选育研究。
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