時效裂紋 的英文怎麼說

中文拼音 [shíxiàolièwén]
時效裂紋 英文
ageing crack
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 裂 : 裂動詞[方言] （東西的兩部分向兩旁分開） open
  • 紋 : 名詞（花紋; 紋縷兒） lines; veins; grain
  • 時效 : 1 （在一定時間內能起的作用）effectiveness for a given period of time2 [法律] prescription3 [冶金...
  1. It was concluded that failure of double clip reed was the result of local stress concentration and cracking at the sharp elbow of reed

    雙卡簧片成形時彎角較尖銳並有明顯裂紋是導致失效的原因。
  2. The following results were found, i. e., the water ratio affects obviously the acoustic wave velocity of rock sample ; the wave velocity is higher in saturated rock samples than in unsaturated ones ; and it decreases gradually with the strain of samples during uniaxial compression ; and also with the lengthening holding time at 160 ; when heating the samples the acoustic wave velocity increases slightly in initial stage and comes to the peak value at 60, then decreases gradually with increasing temperature ; meantime, there is a certain temperature effect on rock samples size

    實驗發現含水率對波速影響比較大，飽和巖樣的聲波傳播速度高於不飽和巖樣的聲波傳播速度；人工預制裂紋對聲波傳播速度影響不大；單軸壓縮條件下，聲波傳播速度隨應變增加逐漸降低；在同一溫度（ 160 ）下，波速隨保溫時間的增加而逐漸降低；在對巖樣逐漸加熱情況下，初始加熱階段波速略有升高，當溫度達到60時，巖樣波速達到峰值，之後隨著溫度繼續升高其波速逐漸下降；波速隨溫度變化具有一定的尺寸效應。
  3. The study indicate that the surface form has no effect on kl, but has obvious effect on kll, and will affect the breaking angle and mode ; in finite plate, the boundary condition has effect on the sif and the k is bigger than in infinite plate ; the effect of the distance and the angle between cracks are all have obvious effects on the multiple crack interaction, and the interactions between cracks also have obvious effects on the sif, which can be neglect only when the distance is bigger enough

    研究表明：裂面狀態對k _的大小沒有影響，而對k _的影響卻很大，相同應力條件下，裂面狀態會影響裂紋的開裂角和開裂方式；有限板的邊界對應力強度因子有一定的影響，其k比無限板中的k略大；裂紋間的距離、夾角等因素對裂紋間的干涉效應均有較大影響，裂紋間的干涉效應對應力強度因子的影響非常顯著，只有當裂紋間的距離充分大時，干涉效應才可忽略。
  4. The main purpose of this paper is to study crack growth rate of a class of nonlinear viscoelastic materials under the condition of constant load and small - strain. in this paper : the new test program is raised by referencing the existing test programs and by our trial and error ; in the new test program, facilities involved in the nonlinear viscoelastic crack tests are relatively few, the test process is relatively simple and the data obtained from the experiments are credible. on this basic, the calculation of j integral of nonlinear viscoelastic double cantilever beams specimens and the parameter of fracture work of corresponding nonlinear viscoelasticity are derived

    具體成果包括： 1 、證實了雙懸臂梁試件用於非線性粘彈性裂紋擴展實驗研究的優點：雙懸臂梁試件在實驗中能觀測到的擴展過程持續時間比較長，在計算j積分時，計算方法簡單； 2 、得到了改性聚丙烯材料用於非線性粘彈性裂紋擴展實驗的兩種有效的試件構形和相應的試件尺寸；採用不斷改善夾具的方法使得加載穩定； 3 、經過連續四個多月的時間得到了一組有用的實驗數據； 4 、得到了裂紋長度與時間的關系、裂紋擴展速度與時間的關系、裂紋擴展速度與裂紋長度的關系。
  5. Several materials with large coefficient of expansion were selected to make packaging components, and it was found that the packaging materials have good temperature sensitivity and compatibility with optical fibers. experimental accuracy and repetition of fbg temperature sensitivity and compensation were discussed. have selected several materials which has bigger coefficient of expansion to do packaging components, have made many temperature experiments, there have not flaws, such as aging, crackle, absciss layer, packaging materials have good temperature sensitivity and compatibility with optical fiber ; have designed the simple and practical packaging components, have performed a serials of experiments about accuracy and repetition of fbg wave - length, have obtained the first step conclusion ; have analyzed the result and made comparison between the result of different experiment, have summarized the best packaging effect and several rules to reduce mistskes

    本文所做的主要工作包括以下幾個內容：一、選取了常見的熱膨脹系數大的材料製作封裝元件，經過多次一80到80反復測試，封裝元件沒有出現老化開裂、封裝裂紋、空洞、離層等缺陷，封裝材料具有良好的溫敏穩定性及復用性，與光纖相容性較好；二、對光纖光柵進行簡單、實用的封裝處理，就封裝效果的優劣性、波長測量的準確度、重復性和封裝時產生的波長損失等方面進行了一系列的實驗，得出了初步的結論；三、對溫敏和溫度補償式封裝的實驗數據進行了詳細的分析和對比，從數字上對溫變過程中光纖光柵中心波長的改變及溫變曲線進行了定量的分析，在大量實驗數據分析結果的基礎上，總結出哪種材料封裝效果更好，以及如何有效的減小實驗誤差。
  6. Results show that the brittle fracture is mainly caused by hydrogen brittleness that results from the oxidation arid absorbing hydrogen of copper tube during braze welding

    同時在加熱和冷卻時，由於異種材料的熱脹系數差別過大，產生的較大熱應力作用於已存在的裂紋，促使裂紋二次擴展，甚至使得晶粒脫落產生空洞，最終導致焊接接頭漏氣失效。
  7. The studies expressed that the tensile - strength declined with the growth of dose rate after the radiation treatment, and at the same time, the gel content had extreme value with the change of the dose rate. the surface of uhmwpe fibers showed some irregular micro - pits and dents after radiation treatment, narnely rough degree increasing. their number and deepness increased with increase of dose. and this phenomenon is the most obvious when the dose rate was 8. 5kgy / s and the dose was 400kgy. at the same time some containing oxygen groups, including hydroxyl group, carbonyl group and carboxyl group, were introduced into the fiber surface which was exposed to the air

    研究表明， uhmwpe纖維經電子束輻照處理后，纖維的拉伸斷裂強度隨劑量率的增加呈下降趨勢，凝膠含量隨著劑量率的變化存在極值。纖維表面出現了不規則的微裂紋和凹痕，隨著劑量的增大，電子束對纖維表面的刻蝕程度增加，在本研究中以劑量為400kgy劑量率為8 . 5kgy s時刻蝕效應最為明顯。同時，在空氣中進行輻照時，纖維表面被引入了一些含氧基團，包括羥基、羰基和羧基。
  8. For the laminate which contains a crack, the suggested patch shape is rectangle, the patch thickness is equal to the parent laminate and the patch stacking sequence is the same as the parent laminate. because the length and the width of the patch have the fewer influence on the repair effect, the patch has the least weight on the basis of enough edge distance, end distance and space having been promised

    ?對于含裂紋復合材料層壓板，長方形補片的長度和寬度對修補效果沒有非常明顯的影響，因此在保證連接邊距、間距和端距的條件下，補片大小的選擇應該以節省重量為原則；而當補片的鋪排順序與母板相同、相對厚度為100時能夠獲得比較好的修補效果。
  9. Apply a single generous coat of fired crackle color. be careful not to double back. crackle effect will begin immediately until dry

    塗上一層裂紋釉于器皿上，要一次過施釉，切勿重復施塗；裂紋效果在色釉接近乾透時即顯現。
  10. Author thinks that the direction of the maximum plastic distortion along a constant radius around the crack tip may be considered as the direction of shear - mode fracture ( named pmax - criterion ) and the load when located shear band prongs the ligament in the front of crack tip is regarded as the limited load of shear - mode fracture. ( 3 ) the fad ( fracture assessment diagram ) of titled crack is proposed based on achievements of mesomechanics about i - ii complex ductile fracture of metal, and the titled crack is classified two kinds : void - mode fracture is assessed by fracture assessment curve, and shear - mode fracture by limited load. ( 4 ) using a fe program based on plantle - ressue theory to calculate some mesomechanical parameters, a flange joint structure of a high pressure vessel ( design pressure 31. 4mpa and the thickness of the hemispherical head is half of that of shell. ) is analyzed to determine whether the structure under operation pressure is safe or not, forecast the mode of potential invalidation and argue for the rationality of design of the structure

    試件的整體斷裂為剪切型，但在試件芯部裂尖鈍化區中部出現了韌窩型啟裂並有一定的擴展，說明局部較高的應力三軸度也會使韌窩型機制得以發展，但是不改變試件整體的剪切型斷裂模式；對韌性斷裂的剪切模式的細觀機理做了一定的探討，並且提出了含裂紋構件剪切型斷裂的宏觀判據：認為裂紋前方的集中剪切帶中與裂紋尖端等半徑處最大有效塑性應變出現的方向可以作為裂紋剪切斷裂的方向（可簡稱為_ （ pmax ）準則） ，集中剪切滑移帶貫穿裂紋前方承載韌帶時的載荷可以作為極限載荷；本文運用金屬韌性斷裂細觀力學在一復合型韌性斷裂方面的研究成果，採用失效評定圖的形式，提出了傾斜裂紋的安全性評定方法的基本框架。
  11. It is found that cyclic loading at high differential stress level will lead to the decrease of felicity ratio, and the value max can be decreased by some crack systems in specimen. there is still a lot of ae during unloading at high differential stress level, which implies that the deformation is dominated by fracturing at low differential stress level, and the deformation by frictional sliding increases greatly at high differential stress level

    關于應力方式對巖石破裂的影響，發現較高差應力水平下的多次循環加卸載會使felicity比減小；某些構造能使巖石產生felicity效應的應力門檻值_ （ max ）降低；由高差應力水平下卸載時仍有大量聲發射產生推測：在低差應力水平下，破裂以裂紋尖端的突然擴展為主；在高差應力水平下，沿已有的裂紋面的滑動破裂大量增加。
  12. The fiction coefficients of the five sliding pairs in different media were in the succession of, respectively. in distilled water : ual2o3 > ual2o3 / al2o3 > ual2o3 / al24zys > ual2o3 / al24zy > usic / sic in 1mol / l naoh : in air at 50 % relative humidity : and the friction coefficients of the sliding pairs a12o3 / a12o3, a12o3 / zta, a12o3 / a124zy and a12o3 / a124zys were in the order of u

    當載荷為60n ，滑動頻率為10hz時，經過400om滑動距離后，在水中a12o3 / a1203 ， a1203億ta ， a12o3 / a124zy和a12o3 / a124zys摩擦副均不能形成有效的潤滑膜，屬邊界潤滑過程，磨損表面產生了裂紋，發生了晶粒拔出。
  13. The time serial of short fatigue cracks ' propagation rate is modeling and predicting by using neural network in this article, and the good result is achieved

    文中利用神經網路對短裂紋擴展速率進行時序數據建模與預測，取得較好的效果。
  14. Experimental results indicated that the polypropylene fiber can improve the workability of concrete availably, and can increase the presentation quality of structures with the voids and pits decreased ; the cracks of beam are controlled effectively, the width and length of crack decreased, the dispersibility of crack in beam face improved, and the ductility of beam increased ; and the cracking load of reinforced concrete beam is increased, the amplify up to about 30 %, simultaneity the ultimate bear capacity increased

    試驗研究表明，使用聚丙烯纖維后，能有效改善新拌混凝土的和易性，並能增強混凝土構件的外觀質量，減少構件表面蜂窩、麻面、氣孔、細小裂紋等；同時，在破壞試驗過程中發現梁的裂縫能得到有效控制，裂縫寬度減小，裂縫的發展高度降低，裂縫的條數增加，提高了梁截面的裂縫分散能力，增強了梁中混凝土的韌性；提高了鋼筋混凝土梁的開裂荷載，幅度可達30左右，增強了結構的延性，提高了結構的抗裂性能和屈服荷載。
  15. It is shown that the interfacial crack has a significant effect on the equilibrium position of the edge dislocation near circular interface. the results also exhibit a strong dependency different between the shear modulus and poisson ' s ratios of the matrix and the inclusion

    刃型位錯與含界面裂紋的夾雜干涉效應表明：當位錯接近界面時，裂紋對位錯平衡位置有很大的影響；平衡位置對兩種材料的彈性性質也有很大依賴性。
  16. The application of wavelet transform and multiresolution analysis to edge detection is analyzed. incorporating with the invariant moments, the paper present a real - time monitoring scheme for image monitor system of the unmanned substations by dynamically detecting the cracks of the porcelain bottles. simulation results and applications show that the method presented is valid and effective

    3 ）對小波變換和多解析度分析在邊緣檢測中的應用進行了分析和研究，並與圖像的不變矩特徵相結合，出了一種新的基於小波和矩的動念檢測瓷瓶裂紋的實時監控方案，應用於無人值守變電站圖像監控系統，模擬結果和實際應用均證明了該方案的正確性和有效性。
  17. Our product can carry on the greatest stress monitor in real time to the characteristic of the operating apparatus ; it can optimize operation and control the greatest stress of part in a range of allowing ; it can carry on crackle predication and lengthen the service life of apparatus to make the power plant obtain the supreme economic benefits

    針對運行設備的特點，實時進行最大應力監測；優化運行操作，控制其部件的最大應力不超過允許范圍；進行裂紋預測，延長設備使用壽命，使電廠獲得最高的經濟效益。
  18. The effect of these nonlinearities can be avoided by determining compliance at the same maximum load for all crack lengths investigated.

    這些非線性效應，可在測定所有裂紋長度的柔度方法時，採用最大載荷不變的方法予以消除。
  19. Pe geo - net can be used to strengthen the surface of road, disperse traffic load, avoid cracks and strengthen the stability of border slope

    用於路面增強，使網格與路面材料融合在一起，可以有效的分散傳遞載荷，防止路面裂紋，可增強邊坡穩定性，同時還可提高邊坡坡度。
  20. ( 1 ) oxidation on the crack surface of 16mnr increase with temperature. oxidation mainly takes place on the crack surfaces at 150 ~ 300, which it is serious both on the crack surfaces and in the grain boundaries at 425. oxide - induced closure at 150 ~ 300 results in the drop of crack growth rates

    鐵素體材料16mnr疲勞裂紋表面的氧化隨溫度升高而增大，在150和300時裂紋表面氧化引進的閉合效應要比晶界氧化脆化更明顯，引起在這個溫度范圍內的試驗疲勞裂紋擴展速率下降。
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