裂紋擴展速率 的英文怎麼說

中文拼音 [lièwénkuòzhǎnsùlǜ]
裂紋擴展速率 英文
crack growth rate
  • 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
  • 擴 : 動詞（擴大） expand; enlarge; extend
  • 速 : Ⅰ形容詞（迅速; 快） fast; rapid; quick; speedy Ⅱ名詞1 （速度） speed; velocity 2 （姓氏） a surna...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 速率 : speed; rate; tempo
  1. A new expression of fatigue crack propagation velocity

    一種帶可靠性的疲勞裂紋擴展速率表達式
  2. Furthermore, the supposition of galvanic couple is drawn into the procedure of corrosion fatigue crack growth of aluminum alloys, the relation of couple current vs loading time is determined with electrochemical methods. a formula in the theory is deduced which expresses the stress corrosion crack growth rate of lc4cs aluminum alloy, the results of mathematical modeling preferably correspond with examination

    再將「耦合作用」的猜想，引入鋁合金的腐蝕疲勞裂紋擴展過程中，用電化學的方法測定耦合電流與加載時間的關系，並從理論上導出lc4cs鋁合金應力腐蝕裂紋擴展速率的數學表達式，數學模擬的結果與實驗值具有較好的一致性。
  3. Approximate calculation of crack propagation rate of metal corrosion fatigue

    金屬腐蝕疲勞裂紋擴展速率的近似計算
  4. The formation of 3. 5 % nacl solution is almost similar to that of 3. 5 % nacl thin electrolyte layer, just the mass transfer rate of the oxygen in the layer is more quicker than in the solution ? the test shows that the crack growth rate of wet - corrosion fatigue of lc4cs aluminum alloy in the layer is quicker than in the solution, and also shows that morphology of fatigue fracture in the layer is evidently distinguished from in the solution

    3 . 5 nacl溶液和3 . 5 nacl薄液層的化學組成幾乎完全相同，只是薄液層中氧的傳質速率較快。實驗結果顯示了在薄液層中， lc4cs鋁合金的濕腐蝕疲勞裂紋擴展速率，大於在3 . 5 nacl溶液中的速率。實驗還發現其疲勞斷口的形貌，也與3 . 5 nacl溶液中的有明顯區別。
  5. Studies on the fatigue crack propagation rate ( fcpr ) indicate that load ratio ( r ) has a great effect on the fcpr : the greater load ratio is, the higher the fcpr becomes, and the lower kth shows. compared with load ratio, the thickness of the specimen has a lower effect on the fcpr

    對鎂合金的疲勞裂紋擴展特性的研究表明：載荷比r對鎂合金az91 ， am50裂紋擴展行為具有很大的影響。 r值越大，裂紋擴展速率越高，疲勞門檻值k _ （ th ）越小；試樣厚度t對鎂合金az91 、 am50穩態裂紋擴展速率的影響沒有r值那麼明顯。
  6. There is a slight drop of the fcpr when the specimen s thickness increases. however, the thickness of the specimen exerts a great influence on kth and fatigue life ( n ) : the thicker specimen is, the higher fatigue life ( n ) becomes, and the greater kth shows. under control of the same conditions, the fcpr of am50 is not so high as that of az91. there are some correlations between load ratio ( r ) and the fatigue surface : when load ratio becomes great, small flat surfaces increase while dimples decrease

    試樣厚度增大，穩態裂紋擴展速率略有減小。但是，試樣厚度影響試樣的疲勞壽命和門檻值：試樣越厚，疲勞壽命越長，門檻值越大；在試樣尺寸和加載條件相同的情況下， am50的疲勞裂紋擴展速率較az91小，疲勞壽命則比az91長。載荷比r影響試樣的斷口形貌：載荷比r越大，對應相同k值出的斷口小平面越多，韌窩越少。
  7. The fining grains of al - l % si could accelerate the fatigue crack propagation from the near threshold zone to paris zone

    隨著疲勞裂紋擴展速率從近門檻值區向paris區過渡，細小的a （ a1 ）晶粒會加速疲勞裂紋的擴展。
  8. A model based on the concept of the hypothetical fcp element is proposed to give the physical explanations to the existence of fcp threshold and why the fcp rate in near - threshold region coul

    提出了近門檻區內「裂紋擴展基元模型」 ，用於定性地說明何以近門檻區內裂紋擴展速率低於原子間距，進而解釋了裂紋擴展門檻值存在的物理本質。
  9. However, the fatigue of structure is such a complicated phenomenon affected by many uncertainties that it is necessary to analyze the structural fatigue from the point of probability and statistics. probabilistic fracture mechanics is a branch of fracture mechanics, so the various parameters affecting the fatigue propagationg a re considered as randomized

    作為斷裂力學的一個新的分支，概率斷裂力學從概率和統計的角度對結構進行疲勞可靠性分析，充分考慮了疲勞破壞過程中出現的不確定因素，將影響疲勞裂紋擴展速率的各參數看作是服從某一種概率分佈的隨機變量。
  10. In the existing literature, the material coefficients are simply considered as constants. yet the material coefficients c and n in paris formula are randomized in this study. using the least square method, the statistical correlation between c and n is obtained through the numerical value collocation

    將以往文獻中通常看作是確定性的材料系數隨機化，通過對大量數據進行數理統計的分析，將疲勞裂紋擴展速率paris公式中材料系數c和n視為隨機變量，採用最小二乘法對c和n進行數值擬合，從而得到二者的統計相關性表達式。
  11. Tial - based alloys with high specific strength are the most potential high temperature structural materials for aerospace application. however, the application of these materials is hindered by low resistance of damage, low room - temperature ductility and fracture toughness and high crack growth rate

    Tial基合金比強度高，是最具潛力的航空、航天用高溫結構材料之一，但因其具有較低的抗損傷能力，較低的室溫塑性、斷裂韌性和高裂紋擴展速率，這些斷裂特性阻礙了這種材料的應用，因而仍有必要研究其斷裂機理。
  12. Standard test method for fatigue crack growth rates of metallic materials

    金屬材料疲勞裂紋擴展速率試驗方法
  13. In this paper, through the statistical analysis of the random factors in the stage of sub - critical propagation of cracks, the statistical correlation equations between the two material coefficients are obtained and can be generalized. furthermore, it can be concluded that cracks propagation rate is influenced greatly by material coefficients in the condition considered in this study

    本文主要通過對亞臨界裂紋擴展階段各種隨機因素的統計分析，找到了可以推廣應用的，體現兩材料系數之間具有強負相關性的統計相關式，並驗證了在一定條件下，材料系數是影響裂紋擴展速率的主要因素。
  14. The fatigue crack propagating rates of the above aluminum alloys in paris zone had no remarkable differences. it was showed that fatigue crack propagating rates had little susceptivity to the microstructure of the above alloys in paris zone

    三種試驗合金在paris區的擴展沒有明顯的差別，表現出裂紋擴展速率在paris區時，疲勞裂紋擴展對微觀組織結構的不敏感性。
  15. Test method for low cycle faitigue surface crack growth rates of metallic materials

    金屬材料低周疲勞表面裂紋擴展速率試驗方法
  16. 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。
  17. The initiation and growth of short fatigue cracks is a nonlinear kinetic process, and the short fatigue cracks ' propagation rate is characterized as chaos and self - organized

    摘要短裂紋的萌生與擴展是一復雜的非線性動力學過程，短裂紋擴展速率具有非線性動力學系統的混沌現象和自組織特徵。
  18. Increase of fatigue crack growth rates of 316l at elevated temperature mainly results from the drop of material intensity and elastic modulus

    由於溫度升高316l的彈性模量和強度下降，因此奧氏體材料疲勞裂紋擴展速率隨著溫度升高而提高。
  19. Fatigue crack growth rate of rotor steel under the condition of subcritical temperature

    亞臨界溫度條件下轉子鋼疲勞裂紋擴展速率
  20. Crack growth rate

    裂紋擴展速率
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