该基本解满足自由裂纹的边界条件。
This fundamental solution has satisfied free crack boundary conditions.
应用分配形有限元和边界元相结合的方法于含裂纹的结构声相互作用问题。
The mixed method of boundary element and fractal finite element is adopted to solve the cracked structure-acoustic coupling problems.
图17示意了用电子显微镜扫描出的沿晶粒边界产生的氢脆裂纹。
Figure 17 is a scanning electron microscope view of a typical hydrogen embrittlement crack where separation occurs along grain boundaries.
如此,既能与边界单元几何形状基本拟合,又能高精度地模拟裂纹尖端附近位移和应力变化规律,并提高计算效率。
So such, both shape consistent with boundary element geometrical shape, and simulate crack tip close-by variety law of stress and strain with higher precision, and enhancing calculative efficiency.
精确地满足裂纹表面的边界条件,其他的边界条件采用加权残数法近似地得到满足。
The boundary conditions on the crack surfaces are satisfied exactly. While the conditions on the other boundaries are satisfied approximately by using the method of weighted residuals.
本文采用一种边界积分方程法,计算了共线周期反平面裂纹的动应力强度因子。
In this paper, a boundary integral equation method is applied to compute the dynamic stress intensity factors of collinear periodic antiplane cracks.
本文用边界配置方法计算了不同情形下含偏心裂纹椭圆盘受均布载荷时的应力强度因子。
In this paper, boundary collocation method is used to calculate stress intensity factors of an eccentric crack in an elliptical disc subjected to a uniform tension stress.
研究无限弹性体中正方形弹性夹杂对裂纹应力强度因子的影响,给出了问题的新边界积分方程。
The effect of an elastic square inclusion on a crack tip's stress intensity factor in an infinite elastic body is considered and the new boundary integral equations are derived.
采用对偶边界元方法分析了梯度材料中的矩形裂纹。
This paper analyzes the rectangular-shaped crack in the graded materials by using the dual boundary element method.
本文研究了计算半随圆表面裂纹应力强度因子的边界元方法。
In this paper, the boundary element method for calculating surface crack is studied and suitable location or the singular isoparametric elements, is presented.
由此求得动态裂纹扩展时,沿裂纹边界的能量释放量和能量释放率(动态裂纹扩展力)。
Based on the boundary variational theorem, the energy release quantity and energy release rate (dynamical crack extension force) along the crack boundary are obtained.
采用连续分布位错模型讨论和分析了受远处载荷下半无限平面自由边界附近任意方位的裂纹问题。
With a continuously distributed dislocation model, this paper deals with cracks inclined to a free surface of a semi infinite plane under remote loadings.
在工程断裂分析中任意边界缺陷如缺口或裂纹群是常见和重要的情况。
In engineering fracture analysis, random boundary imperfections as notches or cracks are common and important.
在满足电磁量边界条件的情况下,根据导电体的麦克斯威尔方程,得到裂纹尖端附近焦耳热源功率的表达式。
When the boundary conditions of electromagnetic quantities are satisfied, according to Maxwell field equation the expression for Joule heat resource power can be obtained.
通过把半空间的边界模拟成一个包含在无穷大弹性介质中大裂纹,此法能很好的处理具有任意表面形状的表面裂纹。
This method simulates the boundary in half-space into a large crack containing in an infinitely great elastic medium, by which the surface crack in arbitrary shape can be well-treated.
给出金属板在高密度电流脉冲下裂纹尖端电流集肤效应和急剧发热升温解析的边界元法。
Concerns BEM (boundary element method) of electric current concentrating effect and temperature rising analysis at the crack tip with high density electric pulse.
采用双材料基本解建立边界元法基本方程,计算双材料界面裂纹尖端附近的应力和位移场。
The stress intensity factors of bimaterial interface crack are analyzed using the boundary element method with bimaterial fundamental solutions.
利用裂纹尖端的奇异元和线性元插值模型,给出了扭转刚度和应力强度因子的边界元计算公式。
Using the interpolation models for both singular crack tip elements and other crack linear elements, the boundary element formulas of the torsion rigidity and stress intensity factors were given.
提出了一个三维钝裂纹的计算模型,并建立了适用于这类模型的边界元法程序。
A calculation model for 3-d blunt cracks in proposed and the corresponding boundary element method (BEM) computer program system is also established.
位移边界积分方程的源点配置在非裂纹边界上,面力边界积分方程的源点配置在裂纹面上。
The former is collocated exclusively on the uncracked boundary, and the latter on one side of the crack surface.
在边界条件和其他几何条件相同时,可以通过切口的应力集中系 数求得相应裂纹问题的应力强度因子。
The stress intensity factor of crack can be calculated from the stress concentration factor of corresponding notch when the boundary condition and other geometric conditions are in the same.
与不可导通电边界条件相比,导通裂纹表面的电位移强度因子比不可导通裂纹的电位移强度因子要小许多。
It is found that the electric displacement intensity factors for the permeable crack surface conditions are much smaller than the results for the impermeable crack surface conditions.
研究条形平板中平行于上下边界的单一裂纹的识别问题。
The novel identification method of single crack situated in a strip and parallel with the boundaries is studied.
对矩形裂纹面进行了数值计算,得到了应力强度因子沿裂纹边界的分布规律。
Numerical calculation has been taken for rectangular crack and the distribution of stress intensity factors along the crack edge has been obtained.
将其引入直接或间接积分方程中,只要对板的外边界进行离散,就可计算有限尺寸裂纹板的弯曲问题。
When it is taken in integral equations, plate bending problems can be calculated only out boundary of the plate should be discretized.
评价了将轴表面半椭圆裂纹简化为有限边界平板的单边裂纹问题和半无限体表面穿透直线裂纹问题来处理的局限性。
The paper evaluates the limitations that semielliptical surface crack in a shaft is simplified to a unilateral crack in a finite boundary plane and a cross straight line crack in a semi infinite body.
带有裂纹和缺陷孔洞的板的问题是一个多连域的边值问题,这类问题适合用边界元法所具有的高精度特性来求解。
Boundary value problem of a plate with crack and defect such as circular hole is a multi-connected domain problem.
根据问题的边界条件,通过对控制方程进行数值求解,得到了裂纹尖端的连续的应力、应变和位移场。
Numerical solutions of governing equations are obtained in combination with boundary conditions of each problem, and the fully continuous stress, strain and displacement in crack-tip field is found.
采用对偶边界元方法分析了梯度材料中的矩形裂纹。
The Focal Performance Analysis of Cylindrical Microlenses by Boundary Element Method;
还着重研究了在有限大体中,平行于裂纹边界尺寸对裂纹前沿应力强度因子的影响,及棱角缺陷的半径对裂纹体应力强度因子的影响。
The numerical results show that the effect of quarter spherical defect to stress intensity factor in the finite body is the same as that in the infinite body.
应用推荐