In order to calculate the crack expansion life in the action of variable amplitude load for the metal bar with V-shaped notch, the formula of bar fracture frequency was obtained theoretically by setting a size of bar fracture region applied in the engineering. Based on it, the mathematic expression of crack expansion life of bar V-shapednotch tip in the action of variable amplitude load was built.

針對(duì)金屬棒料在變幅載荷作用下需要較精確地獲取其V形槽尖端裂紋擴(kuò)展壽命的問(wèn)題，通過(guò)給定一個(gè)工程上能接受的瞬斷區(qū)尺寸，獲得了棒料斷裂頻率的計(jì)算公式，在此基礎(chǔ)上无码毛片视频一区二区免费播放，建立了變幅載荷作用下棒料V形槽尖端裂紋擴(kuò)展壽命的數(shù)學(xué)表達(dá)式。

Special solutions for the ring circular domain with crack surfaces acted on uniform compressive force, linear compressive force and linear shearing force are deduced in polar coordinate employed the eigenfunction expansion technique in the Hamiltonian system of elastic mechanics. Combined with the general solution for the above problems, the analytical solutions for crack tip fields with surfaces acted on the above three kinds of loads are obtained. These solutions offer theoretical basis to construct analytical elements for plastic analysis of crack.

從彈性力學(xué)哈密頓體系理論出發(fā)欧美性碰碰，利用平面彈性力學(xué)極坐標(biāo)系下的本征向量展開(kāi)求解羞羞在线，推導(dǎo)了環(huán)形圓形域裂紋邊作用有均布?jí)毫Α⒕€性壓力和均布剪切力情況下的特解婷婷免费在线视频，從而得到了裂紋表面作用有以上三種荷載情況下的裂紋尖端場(chǎng)的解析解亚洲黄色视频免费看，為進(jìn)一步構(gòu)造進(jìn)行彈塑性裂紋分析的奇異解析元奠定了理論基礎(chǔ)。

The constant term and non-singular terms, which are called general T-stress here, play a significant role in determining the stress and strain fields around a crack tip which in turn can affect the calculation of stress intensity factor of the crack.

裂紋尖端的奇異應(yīng)力場(chǎng)可以表達(dá)為Williams級(jí)數(shù)展開(kāi)的形式黄色网站最新网站免费，其中常數(shù)項(xiàng)和非奇異項(xiàng)對(duì)裂紋尖端的應(yīng)力應(yīng)變場(chǎng)有著很大的影響4438精品黄色视频，這些影響反過(guò)來(lái)作用于裂紋應(yīng)力強(qiáng)度因子的計(jì)算。

In this thesis, the stress intensity factors of top-down cracks caused by loading are calculated using three dimensional finite element model and compared to the results of plane strain model.

本文采用三維有限元模型分析了荷載作用下自上而下裂縫尖端的應(yīng)力強(qiáng)度因子久久福利无码一区二区三区，并與二維平面應(yīng)變模型分析的結(jié)果進(jìn)行比較九一香蕉国产在线观看AV。

Psychological process: May avoid various situationsnonessential harassment (for example in work situation sexualharassment.), the fluorspar octahedron has six acmes, may representjust in time sixth turn.

心理作用：可避免各場(chǎng)合不必要的騷擾，螢石的八面體有六個(gè)尖端偷拍一区1页，正巧可以代表第六輪。

Based on the fracture mechanics approach, the finite element method analyzed a varity of the stress intensity factor at the pavement crack tip when setting fiberglass-polyester paving mat, and the effect of the stress intensity factor in symmetric load and asymmetric load was studied when the asphalt layer modulus, thickness of semi-rigid base, the the depth of the crack, touch condition, interlay modular, etc., changed.

基于斷裂力學(xué)的方法人人看人人草人人搞人人鲁人人插，采用ANASYS軟件模擬瀝青路面典型結(jié)構(gòu)A级高清免费毛片av无码，分析了設(shè)置聚酯玻纖布夾層后，在正載和偏載作用下99re，裂縫尖端應(yīng)力強(qiáng)度因子的變化A片黄网站，研究了瀝青層模量、基層厚度及裂縫擴(kuò)展深度等結(jié)構(gòu)參量及層間接觸條件和夾層模量對(duì)應(yīng)力強(qiáng)度因子的影響規(guī)律分析結(jié)果表明大战黑人AV无码，設(shè)置聚酯玻纖布夾層欧美性爱一级shipin，可以有效防治荷載型反射裂縫的擴(kuò)展。

By introducing special stress functions, we find solutions of eighth order homogeneous linear equation set with complex functions method and approach of undetermined coefficients, deduce calculation formulas of bi-material elastic constants for two dissimilar orthotropic composite materials. The expressions of stress intensity factors near finite interface crack tip subjected to symmetric loadings are derived. A engineering application numerical example is given.

通過(guò)引入特殊的應(yīng)力函數(shù)人人操人人干人人乐综合色站，采用復(fù)變函數(shù)方法和待定系數(shù)法求解了八階齊次線性方程組久久久久精品极品，推出了兩種相異正交異性復(fù)合材料板的雙材料彈性常數(shù)的計(jì)算公式，得到了受對(duì)稱載荷作用的界面裂紋尖端應(yīng)力強(qiáng)度因子的計(jì)算公式操操操草草草，給出了一個(gè)工程應(yīng)用算例嘿咻嘿咻无码免费视频。

The mixed boundary problem was reduced to a system of singular integral equations by means of Fourier transform.

利用Fourier積分變換技術(shù)將混合邊值問(wèn)題轉(zhuǎn)化為一對(duì)奇異積分方程，通過(guò)數(shù)值求解奇異積分方程獲得含裂紋功能梯度板條分別在剪切和法向載荷作用下的I型和Ⅱ型應(yīng)力強(qiáng)度因子天天免费操一操，并討論了材料的非均勻性和裂紋相對(duì)尺寸對(duì)裂紋尖端應(yīng)力強(qiáng)度因子的影響超碰国产精品无码日韩。

In calefactive phase,the electro thermal model of hot bridge wire was established,the calefactive time of invariable current fire case and capacitance discharge fire case were both studied.

橋絲式電火工品不僅普遍用于各類通用彈藥，而且還作為一種特殊能源的99热99re6国产在线播放、一次作用的動(dòng)力源器件廣泛用于導(dǎo)彈亚洲色欲色欲天天天、核武器等尖端武器中[1]亚洲专区在线观看无码。

The general feature of the plastic deformation is similar in both charging or uncharging hydrogen specimens.

發(fā)現(xiàn)：氫的存在并不改變?cè)冖裥突蚧旌闲洼d荷作用下，裂紋尖端的塑性變形特征肏屄直接看，即在主裂紋前端亚洲欧美一区二区日韩另，應(yīng)變呈不對(duì)稱分布，裂紋尖端Schmid因子決定了條帶狀局部形變帶的軸線方向无码A片日韩毛片精品。

action of point：尖端作用

action 作用量,作用,作用力 | action of point 尖端作用 | activation 激活,活化

point, action of：尖端作用

脫軌器 point type derail | 尖端作用 point, action of | 假設(shè)中和點(diǎn) point, artificial neutral

cantilever：懸臂

假設(shè)兩個(gè)原子中,一個(gè)是在懸臂(cantilever)的探針尖端,另一個(gè)是在樣本的表面,它們之間的作用力會(huì)隨距離的改變而變化,其作用力與距離的關(guān)系如圖所示,當(dāng)原子與原子很接近時(shí),彼此電子云斥力的作用大于原子核與電子云之間的吸引力作用,

point exit：出口點(diǎn)

point effect 尖端作用 | point exit 出口點(diǎn) | point shift, floafing 浮點(diǎn)移位

fleece：套毛

布料及針織:多功能的紗線及布料.既發(fā)揮保護(hù)作用亦充滿時(shí)尚感,看似簡(jiǎn)單但卻矜貴且具尖端科技的特質(zhì).合成纖維或山羊絨制成的優(yōu)質(zhì)法蘭絨<flannels)、套毛(fleece)及縮絨(felted fabrics)都是用來(lái)表達(dá)高雅形態(tài)的布料.

ionizer：離子發(fā)生器

目前常采用的感應(yīng)式離子發(fā)生器(ionizer),當(dāng)其尖端接近帶電體時(shí),在尖端上能感應(yīng)出與帶電體上靜電極性相反的電荷,并在尖端附近形成很強(qiáng)的電場(chǎng),當(dāng)場(chǎng)強(qiáng)超過(guò)25~30KV/cm時(shí),空氣電暈放電,產(chǎn)生正国产成人中文激情小说网站在线观看、負(fù)離子,異性離子在電場(chǎng)作用下向帶電體運(yùn)動(dòng),

plutonium：插碩

platinum resistance thermometer 鉑阻溫度計(jì) | plug 插碩 plutonium | point action 尖端作用

point action：尖端作用

plug 插碩 | point action 尖端作用 | point charge 點(diǎn)電荷