dislocation n. 1.【醫(yī)學(xué)】脫位,脫臼;離位,轉(zhuǎn)位,位移。 2.【地質(zhì)學(xué);地理學(xué)】斷層,斷錯;【物理學(xué)】位錯。 3.混亂,打亂。 a disastrous economic dislocation 災(zāi)難性的經(jīng)濟(jì)混亂。
A screw dislocation in a half - plane piezoelectric composite medium 半平面壓電復(fù)合介質(zhì)中的螺位錯
The interaction between piezoelectric screw dislocation and circular crack under remote uniform heat flux 均勻熱流場中螺型位錯與圓弧裂紋的相互作用
Electroelastic interaction between a piezoelectric screw dislocation and a circular inhomogeneity with interfacial cracks 壓電螺型位錯和含界面裂紋圓形夾雜的電彈干涉效應(yīng)
Using this method , the coupled fields for an elastic elliptical inhomogeneity with a screw dislocation under infinite longitudinal shear is examined 這種分析方法,為求解復(fù)雜多連通域的平面彈性與熱彈性問題提供了一條有效途徑。
As a result , analysis and discussion show that the influence of interfacial crack or rigid line inclusion on the interaction between screw dislocation and inhomogeneity is significant 分析結(jié)果表明,界面裂紋和剛性線夾雜對螺型位錯與夾雜的干涉作用具有強(qiáng)烈的擾動效應(yīng)。
In addition , the growth mechanism of c - axis was screw dislocation growth or rough interface growth , but that of a , b - axis was two - dimension nucleation growth . because in low supersaturation , the speed of helix dislocation growth and rough interface growth was higher than that of two - dimension nucleation growth 另外,由于羥基磷灰石晶體結(jié)構(gòu)的特點(diǎn), c面主要以螺旋位錯生長和粗糙面生長兩種機(jī)制為主,而a 、 b面則主要以光滑面的二維成核生長為主。
When the radian of rigid line reaches extensive magnitude , the presence of interfacial rigid line inclusion can change not only attraction force on dislocation arisen by soft inhomogeneity into repulsion force , but also the interaction effects between screw dislocation and soft matrix . soft inhomogeneity can repel screw dislocation in piezoelectric material due to their intrinsic electromechanical coupling behavior 當(dāng)界面裂紋達(dá)到一定弧度時(shí),可以將硬夾雜對位錯的排斥作用改變?yōu)槲?;?dāng)剛性線夾雜達(dá)到一定弧度時(shí),不但可以將軟夾雜對位錯的吸引改變?yōu)榕懦猓部梢愿淖冘浕w對位錯的作用性質(zhì)。
Applying perturbation technique , the image force on dislocation is obtained when dislocation located arbitrary point either outside or inside inhomogeneity , however , a number of previous related investigations on above problems only calculated the interactive dislocation force as the dislocation lies on the x - axis . the variation of screw dislocation forces for correlative material parameters and different radians of crack or rigid line is discussed particularly 針對以往大多數(shù)相關(guān)文獻(xiàn)~ ( [ 7 ] - [ 16 ] )只求出了位錯在x軸上時(shí)位錯力表達(dá)式,本文應(yīng)用擾動技術(shù),導(dǎo)出了位錯在基體或夾雜中任意點(diǎn)的位錯力公式;并討論了位錯力隨材料相關(guān)參數(shù),裂紋或剛性線弧度的變化規(guī)律。
The interaction effects between circular interfacial cracks or rigid line inclusions and a screw dislocation located either outside or inside inhomogeneity under antiplane shear , the electroelastic interaction between a piezoelectric screw dislocation located either outside or inside inhomogeneity and circular interfacial cracks and rigid lines under longitudinal mechanical and inplane electrical loads in linear piezoelectric materials and the elastic interaction between an edge dislocation located either outside or inside inhomogeneity and interfacial crack along a circular inhomogeneity are dealt with in this paper 本文首次對位錯與圓形彈性夾雜界面典型缺陷的力、電干涉進(jìn)行研究,解決了無窮遠(yuǎn)反平面剪切作用下螺型位錯與含界面裂紋或界面剛性線圓形夾雜的彈性干涉問題;無窮遠(yuǎn)縱向剪切和面內(nèi)電場共同作用下壓電螺型位錯與含界面裂紋或界面剛性線圓形壓電夾雜的力電耦合效應(yīng)問題:刃型位錯與含界面裂紋圓形彈性夾雜的干涉問題。