預拉伸的 的英文怎麼說

中文拼音 [yùlāshēnde]
預拉伸的 英文
prestressed
  • 預 : Ⅰ副詞（預先; 事先） in advance; beforehand Ⅱ動詞（參與） take part in
  • 拉 : 拉構詞成分。
  • 伸 : Ⅰ動詞（展開） stretch; extend Ⅱ名詞（姓氏） a surname
  • 的 : 4次方是 The fourth power of 2 is direction
  1. For rotor steel ( 30crlmolv steel ), the tests of low - cycle fatigue property are done under different temperatures. the fatigue life under different temperatures is researched to make up for the defects of the testing for foreign similar materials. when pull - stretch data is attempted to evaluate low - cycle fatigue data, the result shows that four - point associated method in middle - low life zone is done well under room temperature, but there are large errors of four - point associated method and general - slope method under other temperatures

    在本文中，通過與國外同類材料的性能進行比較，國產材料與國外材料共有的材料特徵基本相同；對轉子鋼（ 30crlmolv鋼）進行了不同溫度下的低周疲勞性能實驗，研究其在不同溫度下疲勞壽命，以彌補國外對同類鋼材測試的不足；採用拉伸數據預測低周疲勞壽命時發現，室溫條件下用四點關聯法在中低壽命區預測較好，在高溫條件下四點關聯法和通用斜率法都有較大誤差，需要進行改進。
  2. The effects of baking temperature, baking time and prestrain on the bake hardenability and dent resistance of isotropic sheet steel and bh sheet steel produced by batch annealing were studied

    摘要研究了烘烤溫度、烘烤時間和預拉伸應變量對罩式爐退火工藝生產的各向同性鋼的烘烤硬化性的影響，並與力學性能相當的冷軋烘烤硬化鋼進行了對比。
  3. After pretension 0. 1 strain and pretorsion to 14, whereas the strength limit keep on increasing in company with the pretorsional capacity

    其中屈服極限在預拉伸應變0 . 1后再預扭轉14后達到最大值，而強度極限隨著預扭轉量的提高不斷增大。
  4. By forecasting the length of the elastic rope with linear regression anslysis, test vehicle ' s speed can be controlled acctrately

    用線性回歸統計的方法預測橡皮繩拉伸長度，精確地控制了開環狀態的試驗車的碰撞速度。
  5. The ability of a material to become permanently deformed ? stretched, drawn, or hammered without failure while maintaining an appreciable load

    變成永久性變形的能力-擴展，拉伸，或錘鍛后在可預估的持續負載下不出現故障的能力。
  6. The residual stresses in the thick aluminum alloy plates of ly12, b95. and 7050t7451 are measured, and the results are analyzed and compared

    在此基礎上，首次對國產ly12 、美產7050t7451和俄產b95 .三種典型的鋁合金預拉伸板內部初始殘余應力分佈進行了測試和對比分析。
  7. 2. the residual stresses in pre - stretched aluminum alloy plates are successfully measured and analyzed. the measurement precision and applicability of the modified layer removal method are analyzed and evaluated by experiments

    2 、鋁合金預拉伸板內部殘余應力分佈規律的研究通過試驗研究對改進剝層法測試理論的測試精度及工程實用性進行了分析和評估。
  8. A computer program is also presented on calculating the instantaneous prestress losses and the tension value of prestressing tendon, which can be used conveniently in design or in construction

    本文編制了計算預應力摩擦損失、錨固損失和張拉伸長值的程序，能夠在設計或施工中很方便地使用。
  9. A progressive damage method of predicting the static strength and the fatigue life of mechanically fastened joints in fibre - reinforced plastics is established in the paper, which is based on the theory of unidirectional ply

    本文針對以上問題，首先以單層板理論為基礎，建立了層合板接頭靜拉伸及疲勞載荷作用下三維逐漸損傷分析的強度和壽命預測方法。
  10. The results of quantitative analysis showed that the pre - tension deformation reduced the fatigue crack propagation threshold and increased the crack propagation coefficient, and consequently decreased the fatigue resistance of the part with mechanical damage

    定量分析表明：預拉伸變形降低了疲勞裂紋擴展門檻值，提高了裂紋擴展系數，從而使管線在機械損傷的部位疲勞抗力降低。
  11. After pretorsion the successor tensile yield limit and strength limit both improved very highly, but the trend of the increase of the strength limit was suspended till the pretorsional capacity reached 17, when the pretorsional capacity was greater than17 ( prestrain value was 81. 19 % of total strain ), the successor strength limit rapid failed and approached the yield limit. this illustrate the a3 steel specimen translate from plasticity into friability after pretorsion strengthen. when the specimen was operated by tension - torsion action, the yield limit had very large improved, but the strength limit changed very little. furthermore, the trend of the increase of the strength limit was suspended till the pretension capacity reached 0. 25 ( prestrain value was 66. 93 % of total strain )

    A3鋼試件在預扭轉后，后繼拉伸屈服極限和強度極限均有很大提高，但強度極限的增大趨勢到預扭轉量為17為止，預扭轉量大於17 （預應變值為總應變的81 . 19 ）后強度極限迅速下降，與其屈服極限接近，這說明a3鋼試件經預扭轉強化后逐漸由塑性轉化為脆性。該預應變值為a3鋼試件的韌脆轉變點。 a3鋼試件在拉伸-扭轉作用下，屈服極限有很大提高，但強度極限沒有多大改變，而且，屈服極限的增大趨勢到預拉伸量為0 . 25應變（預應變量為總應變量的66 . 93 ）后就不再增加。
  12. Standard test method for determining the tensile shear strength of pre - fabricated bituminous geomembrane seams

    預制瀝青土工薄膜接縫的拉伸剪切強度測定的標準試驗方法
  13. Machining deformation of aircraft monolithic component is simulated by finite element method ( fem ) and validated by experiment. the initial residual stress in pre - stretched plate is generated by simulating quenching and stretching processes. with a single tool - tooth milling process fem, the machining loads in monolithic component material removing is obtained. restart - calculation is put forward to complete the whole simulation of machining process. to verify the fem result, an experiment is carried out. the deformation distribution of the monolithic component resulting from fem shows a good agreement with the experiment result, which indicates that the key technologies presented in the paper are practicable and can be used to simulate the milling process of monolithic component to predict its deformation. lengthy and expensive trial and error experiment process can be avoided

    在模擬淬火、拉伸過程獲得含有初始殘余應力的預拉伸板材以及模擬單齒切削過程獲得切削載荷的基礎上，提出並採用接力演算法，對一航空整體結構件的材料銑削過程進行有限元模擬，同時進行了試驗研究.結果表明，有限元模擬的整體結構件的變形與試驗具有一致性，從而證明提出的整體結構件加工模擬關鍵技術的可行性，避免了為研究加工變形而進行的繁瑣的試錯法
  14. The a3 steel is a kind of plastic material which we commonly used in our daily life and teaching, but there is not much study of mechanical behaviour of the material after pretorsion and pretension intensify at present

    A3鋼是我們日常生活和教學中常用的一種塑性材料，但對于這種材料在扭轉預應變和拉伸預應變后的力學性能目前研究的不多。
  15. Comparing with these several strengthen formal, towards strength limit ' s improvement, the effect of torsion - tension and tension - torsion - tension was close ; simply tension - torsion - tension required a little larger prestrain quantity. whereas, towards yield limit " s improvement, the effect of torsion - tension - tension action ' s strengthen was the best

    從幾種硬化形式的比較來看，對于強度極限的提高，扭轉-拉伸和拉伸-扭轉-拉伸的強化效果相近，只是拉伸-扭轉-拉伸所需的預應變量要大一些；而對于屈服極限的提高，扭轉-拉伸-拉伸作用下的強化效果最佳。
  16. Firstly, the parameters controlling ductile crack growth are gotten from the resistance curve result of standard 3 point bending specimen, then the resistance curves of the tension specimen for the welded joint with different strength mis - matching are predicted based on the cell model

    首先由標準三點彎曲試件的阻力曲線，得出反映材料微觀損傷的特殊單元模型控制參量，再根據該參量對不同接頭強度匹配下雙邊缺口拉伸試件的阻力曲線進行了定量預測，其結果與試驗結果相當吻合。
  17. 1. the measurement method of residual stress distribution in thick aluminum alloy plate is studied. aiming at the difficult problem to measure residual stress distribution in thick plate, a new method is proposed - - modified layer removal method, based on existed measurement theories and according to the characteristics of thick pre - stretched aluminum alloy plate

    本文所完成的主要工作如下: 1 、鋁合金預拉伸厚板內部殘余應力的測試方法研究針對厚板內部殘余應力測試這一技術難題，在現有測試技術研究的基礎上，結合鋁合金厚板的特點，提出了一種新的測試方法? ?改進剝層法。
  18. Test results showed that the fatigue crack propagation rare increased with increasing the pre - tension deformation degree, especially at the near threshold section

    結果表明：隨著預拉伸變形量的增加，疲勞裂紋擴展速率提高，尤其是在裂紋擴展的近門檻區。
  19. In the present study, experimental investigations were carried out on the fatigue crack propagation characteristics of x60 pipeline steel after different degrees of pre - tension deformation ( 5 %, 10 %, 15 % )

    摘要用單邊裂紋試樣，研究了x60管線鋼經預拉伸變形量為5 % 、 10 %和15 %后的疲勞裂紋擴展特性。
  20. Moreover, the residual stress in a typical navigation - used 7075t7351 aluminum alloy plate was measured by the proposed method, with the results being finally analyzed and compared with the data obtained by other methods

    隨后對典型航空用鋁合金預拉伸厚板7075t7351的內部殘余應力進行了測量，並對測量結果進行了分析和比較。
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