surface crack 中文意思是什麼

surface crack 解釋
表面龜裂,表面裂痕
  • surface : n 1 表面；地面；水面；廣場，空地。2 外觀，外表，皮毛。3 【幾】面；切口；【航空】翼面。adj 表面的...
  • crack : vt 1 使破裂；敲破，敲碎，砸碎（陶器等）；嗑（瓜子等）；【化學】裂化（石油等）。2 把（槍打得、鞭子...
  1. The test of low cycle fatigue characteristics for 45crnimova steel and in - situ observation on surface crack propagation

    鋼的低周疲勞特性和表面疲勞裂紋的在位觀測
  2. Through the improvement to the press craft for the heavy wall - head, avoids the production of its surface crack, guarantees the products ' quality, it offered the reference for the work in the future

    摘要通過對厚壁封頭壓制工藝的改進，避免了其表面裂紋的產生，保證了產品質量，為今後的厚壁封頭壓制工作提供了參考依據。
  3. Analyzing the propagation behaviors for open and close crack, the author gain that normal fault is more dangerous to earthquake than reverse fault and glide fault. 3. appling fracture mechanics to discuss reservoir - induce earthquake mechanism, the author observes the characteristic of surface crack and gains the stress intensity factor induced by the pressure of rock, water and osmosis

    針對庫區斷層為表面裂紋這一特點，研究水庫地震的斷裂特點，得出地應力作用下的應力強度因子、庫水作用下的應力強度因子和滲壓作用下的應力強度因子以及它們的應力強度因子之合，並且合理的解釋了構造型水庫地震的誘發機理。
  4. Wave propagation characteristics of cylindrical shells with circumferential surface crack

    含環向表面裂紋圓柱殼的波傳播特性研究
  5. External defects : undercut, overip, arc pit, gas cavity in surface, crack in surface

    外部缺陷：咬邊、焊瘤、弧坑、表面氣孔、表面裂紋。
  6. Taking maluping mine, kaiyang phosphate ore zone as an example, change of mine water amount, its evolution process and law of correlated factors to crush into the pit due to ground surface crack with increases in mining depth, are descryibed

    摘要以開陽磷礦區馬路坪礦為例，描述其礦山隨著采礦深度的增加造成地表開裂變化及其礦坑水的水量變化和潰入礦坑的相關因素的演變過程和規律。
  7. A method for detecting surface crack based on computer image identifiation

    基於計算機圖像識別的表面裂紋檢測方法
  8. This thesis calculates the sifs of circular cracks in a circular bar, writes a computer program to calculate the initial crack ' s growth life in everywhere of the bar, simulates the evolution course of crack from sub - surface to surface and calculates the growth life of sub - surface crack

    計算了圓形試棒中任意位置存在圓形裂紋時的應力強度因子，編寫了計算程序，可對任意位置處初始裂紋的擴展壽命進行計算。計算了圓形試棒亞表面裂紋擴展到表面的過程和亞表面夾雜的裂紋擴展壽命。
  9. Standard practice for fracture testing with surface - crack tension specimens

    用表面破裂張力試樣做斷裂檢測的標準實施規范
  10. No stress measurements or crack surface samples were available for examination, only the surface crack configuration.

    沒有應力測量或裂紋表面取樣可用於檢驗，只能依據表面裂紋圖形。
  11. Because the observation of interior crack is not always available, this paper laid emphasis on surface crack of segments

    由於管片內部裂縫觀測難以實現，故重點研究了表面裂縫的影響。
  12. Studying the rule of geometric shape of surface crack during propagation by means of fracture mechanics theory, a predicting method of fatigue crack propagation life and it ' s numerical calculation theory are presented

    本文應用斷裂力學理論，對焊接鋼結構表面裂紋擴展過程中裂紋幾何形狀的變化規律進行了探討，提出了疲勞裂紋擴展壽命的預測方法，給出了相應的數值計算理論。
  13. " second, jhe failure process of lpg vessel usually includes two phasest the crack formation and the crack propagation. after the temperatat field distribution and the iil. stress field distribution of lpg vessel without cracks are calculated, the stress intensity factor of lpg vessel with initial radial crack as well as surface crack are calculated and analyzed

    其次，液化氣容器的失效過程通常分為裂紋形成和裂紋擴展兩個階段，本文在對無裂紋液化氣容器的瞬態溫度場和應力場進行了計算后，對含有初始表面裂紋的液化氣容器的瞬態應力強度因子進行了計算和分析。
  14. The opening stress and the life of crack growth is calculated and compared with the test results and the experience formula. the feasibility of the newman theory of opening stress used in the high strength steel is validated. then through the slice synthesis method, the three dimension surface crack of the weld joint of cone - cylinder is decomposed into many plane through cracks

    本文將基於裂紋閉合現象建立的帶狀屈服模型，用在平面貫穿裂紋中，計算此時的裂紋張開應力和疲勞裂紋擴展壽命，與試驗結果和經驗公式比較，驗證newman裂紋張開應力理論在高強鋼中的可行性；然後，用切片合成法，把潛艇結構凸錐柱結合殼焊縫處的三維表面裂紋分解成平面貫穿裂紋，用帶狀屈服模型的理論來分析平面貫穿裂紋，得到裂紋沿深度方向的擴展速率，進而得到潛艇結構的疲勞壽命。
  15. Fractal theory is introduced to analyze the surface - crack distribution of reinforced concrete structures, and two load spaces, a concentrated load space and a uniform load space, are generalized for reasonable application of the fractal theory

    將分形引入鋼筋混凝土結構表面裂縫分佈分析，概括歸納了分形適用於損傷檢測的兩類荷載空間：集布荷載空間和勻布荷載空間。
  16. 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
  17. Field treatnent of surface crack in supporting roller

    回轉窯托輪表面裂紋的現場處理
  18. Abstract : in this article, the optimization of surface crack detection of speed reducer gear was made using fuzzy set theory, the result show that the rotation magnetic field is the best way of surface crack detection and lots of extending surface fatigue cracks were found in practice

    文摘:採用模糊集的貼近度計算對齒輪表面探傷方法進行了優化選擇，表明旋轉磁場探傷是齒輪表面探傷的最佳方法，在實用中檢測出大量的正在延伸擴展的表面疲勞裂紋。
  19. With the experiment of surface crack growth of bhw - 35 weld metal, the law of the surface crack shape variation when it grows was obtained, and the law of surface crack growth rate was also gotten. these direct the evaluation of the surface crack fatigue growth life and the critical value of its length

    對bhw - 35鋼焊縫材料進行表面裂紋擴展試驗研究，得到裂紋的擴展形貌變化規律，並對其疲勞擴展壽命進行預測研究，為汽包下降管角焊縫部位的表面裂紋擴展壽命預測提供依據，同時也確定了其表面裂紋擴展的臨界值。
  20. The stress intensity factor for surface crack in " t " type of plate welded joint is computed, and the computation shows that agreement is achieved between the calculation and practical measured result

    計算表明，用線彈簧單元和有限元相結合的方法，計算表面裂紋的應力強度因子，可以大量減少計算工作量，且具有良好的計算精度。
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