| 1. | The expressions of dscf around the interface arbitrary - shape - cavity are deduced 推导了界面任意形孔附近的动应力集中系数的表达式。 |
| 2. | In order to meet these requires , the arbitrariness antenna has been put into studying 针对这些要求,就出现了任意形超分辨天线阵列。 |
| 3. | 3 . the solutions to scattering of sh - wave by an interface arbitrary - shape - cavity for far - fields are studied 研究了界面任意形孔对sh波散射的远场解。 |
| 4. | 2 . the problem about dynamic stress concentration around the interface arbitrary - shape - cavity incidenced by sh - waves is investigated 研究了sh波作用下界面任意形孔附近的动应力集中问题。 |
| 5. | Scattering of sh - wave by a radial collinear crack at the edge of arbitrary - shape - cavity in isotropy media is studied . the solution of dsif at crack tips is obtained 研究了各向同性介质中任意形孔边径向裂纹对sh波的散射,求解了裂纹尖端的动应力强度因子。 |
| 6. | At first we should construct a suitable green ' s function , which is an essential solution to displacement field for an elastic half space with an arbitrary - shape - canyon impacted by antiplane harmonic line source loading at horizontal surface 首先构造了一个适合解答本文问题的green函数,该函数为含有任意形凹陷的弹性半空间在其水平面上任意一点承受时间谐和的反平面线源荷载作用时位移场的解答。 |
| 7. | The scattering problems of sh - waves are studied in this paper by an interface arbitrary - shape - cavity as well as collinear cracks or interface cracks originating diametrically at the cavity edge in the field of linearly elastic dynamic mechanics . the methods of complex function and green ' s function are used here 本文在线弹性力学范畴内,采用复变函数和green函数方法研究了平面sh波在界面任意形孔洞、孔边径向裂纹和孔边径向界面裂纹上的散射问题。 |
| 8. | The works in detail are as follows : 1 . base on the essential solution for a complete elastic half space impacted by antiplane line source loading at horizontal surface , the essential solution of displacement field for an elastic half space with an arbitrary - shape - canyon impacted by antiplane harmonic line source loading at horizontal surface is constructed by using the method of complex function and conformal mapping 从完整的弹性半空间表面承受线源荷载作用问题的基本解出发,用复变函数的保角映射方法获得含有任意形凹陷的弹性半空间在其水平面上任意一点承受时间谐和的反平面线源荷载作用时位移场的解答,即本文的green函数。 |
| 9. | By means of " conjunction " , the model of this problem is established . and then a series of fredholm integral equations of first kind can be set up in terms of the green ' s function , furthermore the scattering problem of sh - wave by cavity in the interface is transformed into a series of algebraic equations based on the direct - discrete method 按“契合”的方式构造出在两个性质不同的弹性半空间交界面上的任意形孔洞对sh波散射的模型,利用green函数建立求解问题的定解积分方程组,并用直接离散的方法将其转化为代数方程组进行求解。 |
| 10. | Then we consider the problem as a " conjunction " problem : according to the solutions for wave problem in interface between two conjunctive homogeneous elastic half - spaces as well as the scattering problem of sh - waves by an arbitrary - shape - cavity in homogeneous material , we divide the elastic space with an interface cavity into two parts along the interface , each is elastic half space with an arbitrary - shape - canyon . and then dividing surfaces are loaded with undete rmined antiplane forces , and with some antiplane reacting forces to appear cracks 然后将界面任意形孔洞和孔边裂纹对sh波的散射问题视为“契合”问题:即从两个相互契合的完整弹性半空间的界面波动问题和弹性均匀介质中任意形孔洞对sh波散射的解答出发,沿界面处将含孔洞的弹性空间剖分为两个含有任意形凹陷的弹性半空间,在其剖分表面上加置未知的反平面荷载,在出现裂纹的位置加置反平面反力构造出裂纹。 |