裂紋成長 的英文怎麼說

中文拼音 [lièwénchéngzhǎng]
裂紋成長 英文
crack growth
  • 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
  • 成 : Ⅰ動詞1 （完成; 成功） accomplish; succeed 2 （成為; 變為） become; turn into 3 （成全） help comp...
  • 長 : 長Ⅰ形容詞1 （年紀較大） older; elder; senior 2 （排行最大） eldest; oldest Ⅱ名詞（領導人） chief;...
  1. Based on the previous research on the portal crane administration, one standpoint put forward in this paper is idea that is on the foundation of reliability in this paper, two viewpoints take shape when reason is analyzed, that is fatigue break and appearing the flaw that will extend. what is the fatigue break ? ( this phenomenon is always happen in some place ), the fatigue is that board appears apophysis and concave when the board is pressed. so that the board ability of bearing the weight of load will descend

    本論文建立在已有的港口裝卸機械管理的研究基礎之上，進一步提出了以可靠性為基礎的港口裝卸機械的管理思想，已有的研究表明，港口機械設備破壞主要由於兩個原因，第一是穩定性問題，特別是構件的局部穩定性，所謂穩定性是指：在板的平面內，板受到平行於板面的壓力作用，使板發生隆起、內陷等凹凸不平的結果，從而使板受載能力減弱；第二是結構出現疲勞裂紋及其擴展，這是由於設備長時期運行，而造成設備某些部位出現裂紋並得以擴展，使設備承載能力下降。
  2. Grow grain, say to expand again grain, as a result of, be adrenal had secreted fill, of human body adrenal coriaceous can secrete a kind of candy coriaceous hormone, this hormone can decompose the bounce fibrin in the skin carbohydrate character, make stretch fiber produces denaturation ; in the meantime, return the hyperplasia that can restrain fiber mother cell, bring about skin flexibility thereby fiber happening ruptures

    生長紋，又稱膨脹紋，是由於腎上腺分泌過盛，人體的腎上腺皮質能分泌一種糖皮質激素，此激素能將皮膚中的彈力纖維蛋白質分解成糖類，使彈性纖維發生變性；同時，還能抑制纖維母細胞的增生，從而導致皮膚彈性纖維發生斷裂。
  3. A two - dimensional plain strain finite element model of infinite plate is developed to investigate the ultrasonic wave propagation and scattering on three kinds of cracks : parallel to the surface, 450 oblique angle to the surface, and quarter - circle

    摘要建立了無限長板的具有吸收邊界的二維平面應變有限元模型，在研究了脈沖超聲波在無限長板中傳播的基礎上，對板中平行於表面的裂紋、與表面成45的斜裂紋和四分之一圓周弧形裂紋三種情況的脈沖超聲波散射進行了重點研究。
  4. A reliability experiment of thermal aging was carried out for the two types of joints, scanning electron microscopy, energy dispersive x - ray spectrometer and micro x - ray diffractomer were adopted to investigate the interfacial evolution behavior of joints, and kinetics model of imc formation was established. the results show that imc growth follows the parabolic law as a function of aging time at certain aging temperature, imc growth is more sensitive to the aging temperature than the aging time, the activation energy of cu - al imc growth is 97. 1kj / mol and the major forming cu - al imc are cual2 and cu9al4, the activation energy of au - al imc growth is 40. 1kj / mol and the main au - al imc are au4al and au5al2, with au2al and aual at the interfacial periphery of joints, the rate of cu - al imc growth is about 1000 times slower than that of au - al imc, and kirkendall voids and cracks are easily appeared during thermal aging in gold ball bonds while voids and cracks are absent in copper ball bonds even after aging at 200 for 2900 hours and 250 for 169 hours

    研究結果表明:金屬間化合物厚度與老化時間的關系符合拋物線法則，金屬間化合物的生長對老化溫度比老化時間更加敏感; cu - al金屬間化合物生長的激活能為97 . 1kj / mol ，老化后金屬間化合物呈層狀分佈，主要相為cual2和cu9al4 ; au - al金屬間化合物生長的激活能為40 . 1kj / mol ，主要相為au4al和au5al2 ，同時在界面周邊區域生成了au2al和aual ;老化過程中cu - al金屬間化合物生長速率比au - al金屬間化合物生長速率小103數量級;金絲球鍵合點200老化96小時出現了明顯的kirkendall空洞和裂紋，但銅絲球鍵合點200老化2900小時和250老化169小時都沒有形成空洞和裂紋。
  5. Increasingly widely use of nonlinear viscoelastic materials, use of materials under extreme conditions, along with frequent occurrence of delayed catastrophic accidents, all these make the study a pressing problem of initiation and crack growth of nonlinear viscoelastic fracture

    隨著非線性粘彈性材料的廣泛使用和材料在極端條件下的使用，在長期荷載作用下頻繁出現的延遲性的災難性的事故使得非線性粘彈性的裂紋起裂時間和裂紋擴展速度的研究成為亟待解決的問題。
  6. 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。
  7. In international, electric potential is used widely. it is expensive to experiment with the method

    高溫環境下疲勞裂紋長度的測量一直是個難題，國際上常用的測量方法是試驗成本較高和電位法。
  8. Series of high pressure thermocouples thermalresistances and thermowells, the thermocouple take the form of spring - loaded, of which protective tube and flange are forged of special alloy, as well the thermowell are formed with bar stock drilled. more further, theconnecting between thermowell and flange can be compressed with tapered thread and the groove at the lower end of flange can be welded with argon arc. these thermocouples are usually used in high equipments of hydrogen cracking device, cracker and vaporizer etc for pressure - resistant in over 30 mpa, operating temperature from 0 up to 800

    系列高壓熱電偶阻及套管，熱電偶採用彈簧壓著式，保護套管和法蘭選用特殊合金材料鍛造，套管採用棒料整體鉆孔加工而成，與法蘭連接處以錐管螺紋配合併與法蘭下端渠槽處用氬弧焊接，耐壓30mpa ，使用溫度0800 ，可長期使用在加氫裂化裝置裂解裝置，氣化爐等高壓設備中。
  9. After the solicitation of craze, because of the growing of the craze, it occurs a rupture and come into being a micro - crack, it will form a bigger crack or cavitate, it will lead an unitary and macroscopical rupture in the end

    銀紋引發以後，它不斷生長繼而發生斷裂，形成微裂紋。微裂紋的串接將產生較大的裂紋或空洞化，並最終導致材料的整體宏觀斷裂。
  10. In industry, about over 80 % damages of the oscillatory components under dynamic loads are caused by the fatigue failure, but with traditional ndt methods, the damages ca n ' t be tested and evaluated before the fatigue crack coming into being, which result in serious accident in the long period running of these equipments

    工業生產中，約有80 %以上受動載荷作用的振動構件破壞是由疲勞失效引發的，而傳統的無損檢測技術無法解決疲勞裂紋形成前損傷的檢測和評價問題，造成設備在長周期運行過程中發生嚴重事故。
  11. Thin, long wear sheets are formed and removed when cracks extend to the surface.

    當裂紋擴展到表面時，形成並分離出薄而長的磨損碎片。
  12. Taking in - situ toughened silicon nitride as a design object, principle component analysis ( pca ) is applied to study the microstructure and mechanical properties, to find out the main microstructure controlling factors, and to simplify the characterization variables and criterions ; fuzzy neural networks ( fnns ) is also applied to develop a design expert system for this material, which can realize the forward prediction from processing, microstructure to mechanical properties, and backward design from mechanical properties or microstructure to processing ; monte - carlo method is applied to simulate the grain growth of this material, and then crack propagation is simulated, which is another way based on physics and chemistry to developing prediction models from processing until to mechanical properties

    本文以自增韌氮化硅陶瓷為設計對象，運用主成分分析法（ principlecomponentanalysis ： pca ）對自增韌si _ 3n _ 4陶瓷的顯微結構和力學性能進行數據空間降維，獲得自增韌si _ 3n _ 4陶瓷顯微結構控制的主要因素，進而簡化了表徵參量變量和準則；運用模糊神經網路（ fuzzyneuralnetworks ： fnn ）建立了自增韌si _ 3n _ 4陶瓷設計專家系統，能實現工藝?微結構?性能的正向預測及反向設計；運用monte - carlo方法（ mc ）進行自增韌si _ 3n _ 4陶瓷的晶體生長模擬，然後進行裂紋擴展模擬，探索建立工藝?微結構?力學性能預測模型的思路。
  13. At the macroscopic scale, it can be considered that we are in presence of a damage accumulation via matrix microcracking coupled with interfacial sliding phenomenon which may be settled according to a slow crack growth mechanism

    在宏觀層次上，可以把通過基體微裂紋和界面滑動所形成的損傷積累看作是一種裂紋的緩慢生長過程。
  14. The material or structure used in practical engineering away have initial damage which gradually devepop from beginning of distortion to failure, in this process polymerization and development of micro - cracks will cause formation and expand of macro - cracks

    在實際工程中使用的材料或構件及結構是存在初始損傷的，其從開始變形直至破壞，是一個逐漸劣化的過程，在這個過程中，微裂紋的聚合和長大造成了宏觀裂紋的形成和發展。
  15. The material also is recommended for contour extrusion and for blow molding of toys, gaskets and other parts requiring permanent flexibility, stress cracking resistance and low temperature toughness

    這種材料也被推薦用於製造玩具，墊圈和其他要求有長期的彈性，抗應力裂紋和低溫韌性的輪廓擠出成型和吹塑成型中。
  16. The crack model of ti - 2al - 2. 5zr is proposed as follows : ( a ) hydrogen diffuse to the crack tip under applied stress ; ( b ) precipitation of hydride ; ( c ) crack propagation by hydride and precipitation through autocatalytic process ; ( d ) repeat the former steps ; ( e ) final fracture

    該合金氫致延遲斷裂的機理為： h ）氫在應力作用下向裂紋尖端擴散； （ b ）在裂紋尖端形成氫化物並長大： k ）主裂紋沿氫化物擴展； m重復h人比、 （ c ） ； k ）最後斷裂。
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