能量释放率

采用有限元分析方法（FEM）对三点弯曲混凝土梁的能量释放率进行了计算，在对混凝土梁进行单元划分时，避免使用奇异性单元来模拟梁的裂尖奇异性。

Calculation of the energy release rate with finite element method ( FEM ) is conducted .

计算压电材料Ⅲ型裂纹的能量释放率及其强度因子KⅢ和KⅣⅡ.刚度微分法

Determination of energy release rate and intensity factors k ⅲ and k ⅳ of piezoelectric materials with ⅲ─ mode crack ⅱ . stiffness derivative technique

计算功能梯度压电材料能量释放率的修正J积分法

A Modified J-Integral Method for Calculating Energy Release Rates for Functionally Graded Piezoelectric Materials

以功能梯度压电板的平面问题为例，给出了一些数值算例以说明修正J积分在计算功能梯度压电材料能量释放率方面的优越性。

Some numerical examples were provided to demonstrate the superiority of the modified J-integral over the standard J-integral .

讨论无限大压电介质、在无限远处均匀的反平面力载荷和平面内电载荷作用下的椭圆孔口问题，计算得到椭圆空口扩展时的能量释放率G。

The present work investigates the energy release rate for a mode ⅲ piezoelectric elliptical cavity under remotely uniform anti-plane mechanical shear and in-plane electric fields .

J积分法计算压电材料平面问题的能量释放率和强度因子

The Energy Release Rate and Stress Intensity Factors of Piezoelectric Materials for Mixed Mode Crack Determined by J Integral

简要概括了多孔介质的基本理论和断裂力学的基本理论，介绍了孔隙度、饱和度、有效应力、应力强度因子、能量释放率、J积分等基本概念。

Some basic concepts such as porosity , saturation , effective stress , stress intensity factor , energy release rate and J integral are introduced .

在Lemaitre损伤模型的基础上，推导了一维TM耦合弹脆性损伤本构方程和损伤能量释放率的表达式；

Giving an imitation of Lemaitre damage equation , one dimension TH coupled constitutive equation is deduced and discussed .

介绍了断裂力学中常用的三个断裂判据：应力强度因子K、能量释放率G、J积分，以及三者之间的相互关系；

The three fracture criteria , stress intensity factor K , energy release rate G and J integral theory , are introduced into fracture mechanics , the relationships between them are demonstrated and the fracture flexibility discussed .

研究粘弹性胶层中Griffith裂纹在Ⅰ型载荷作用下，裂纹尖端动态应力强度因子和能量释放率的时间响应。

The dynamic stress intensity factor and energy release rate were studied about the Griffith crack in visco-elastic layer under mode ⅰ load .

对界面裂纹尖端场采用外推法求解强度因子并利用J积分的二维回路线积分法计算能量释放率。

The stress intensity factors are obtained by using the stress-extrapolation method to stress field near the crack tip , and the energy release rates are calculated out by two-dimensional linear closure integral calculation of J-integral .

然后由实验测得界面裂缝扩展速率和有限元模拟给出的能量释放率，拟合得到可作为倒装焊封装可靠性设计依据的Paris半经验方程。

Then , the half-empirical Paris equation , which can be used as a design base of flip chip package reliability , have been determined from the crack propagation rates da / dn measured and the energy release rates G simulated .

通过对管道断裂的研究，人们提出了各种判据，如针对脆性断裂的能量释放率判据和应力强度因子判据；针对延性断裂的COD判据和J积分判据。

The people put forward all kinds of criterion such as the Energy Release Ratio criterion and Stress Intensity Factor criterion for brittle fracture and COD criterion and J Integrity criterion for ductile fracture by studying the fracture of pipeline .

此外，HT边界元法除了计算反映断裂行为的应力强度因子以及能量释放率外，还计算了非裂纹边弹性场的位移值和力电耦合场的电势值，发现得到的精度依然较高。

Besides the value of the stress intensity factor and the energy release rate , the value of displacement in elastic field and the value of electric potential in piezoelectric field are computed with higher precision .

并在传统的能量释放率理论的基础上，本文提出了一种基于Hamilton正则方程半解析法的数值分析法。

Meanwhile , being differ from traditional energy release rate for cracked laminated composite plates , the numerical solution method based on the semi-analytical solution of Hamilton canonical equation system is proposed and discussed in this paper .

以最大能量释放率为启裂准则，结合PZT-5H压电陶瓷材料，分析了电位移载荷对裂纹启裂的作用效果。

The effects of the electric displacement loading on the crack initiation in a PZT-5H piezoelectric ceramic media were investigated by the theory of maximum energy release rate .

粘弹性断裂问题中的能量释放率及类应力强度因子

Energy Release Rates and Quasi-Stress Intensity Factors in Viscoelastic Fracture Problems

用路径守恒积分计算平面准晶裂纹扩展的能量释放率

Energy release rate of plane quasicrystals with crack determined by path-independent E-integral

两种脆性材料曲线交界面上的能量释放率

Energy release rate in curvilinear interface for brittle two phase composite structure

复合型裂纹的能量释放率计算与断裂判据

Energy release rate and failure criterion for mixed mode cracking

压电材料平面裂纹启裂的能量释放率及电效应

Energy release rate and electric effects for piezoelectric media with plane crack

压电材料平面裂纹问题的强度因子和能量释放率

Intensity Factors and Energy Release Rates for Planar Fracture Problems in Piezoelectric Media

正交各向异性板复合型裂纹能量释放率分析法

Analysis of Release Rate of Energy on Orthotropic Plates

解答与线弹性的能量释放率进行了比较。

The solutions are compared with the energy release rate of linear elasticity .

热冲击下层状梯度材料表面裂纹的能量释放率

Energy Release Rates of Surface Crack in Functionally Graded Laminates under Thermal Shock

三点弯曲混凝土梁能量释放率的有限元计算

Evaluation of the Energy Release Rate of Three-point-bending Beam Using Finite Element Method

层板脱层的能量释放率分析

Analysis of energy release rate for delamination in laminates

双悬臂梁试样能量释放率计算的新方法

A New Method for Calculating Energy Release Rate of Double Cantilever Beam Specimens

压电材料反平面运动裂纹的能量释放率与分叉角

Energy Release Rate and Bifurcation Angles of Dynamic Electroelastic for Piezoelectric Materials with

压电介质中Ⅲ型绝缘裂纹的能量释放率

Energy release rate for mode ⅲ insulating cavity and crack in Piezoelectric Media