裂紋型式 的英文怎麼說

中文拼音 [lièwénxíngshì]
裂紋型式 英文
crack mode
  • 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
  • 式 : 名詞1 （樣式） type; style 2 （格式） pattern; form 3 （儀式; 典禮） ceremony; ritual 4 （自然科...
  1. Many large capacity turbine runners in commercial running have come to cracks or vibration problems with different extent in china. therefore, to ensure the large francis turbines running safely and stably is an important issue on design and type selection research

    在我國陸續投運的大型水輪機轉輪相繼不同程度地出現振動與裂紋，因此，保證大型混流式水輪機的安全穩定運行就成為設計選型研究的重要問題。
  2. The method of crack - division is used to make radial cracks at the edge of cavity. a series of integral equations for determining the dsif at tips of anti - plane crack are set up in terms of the green ' s function

    按「契合」的方式和採用裂紋切割技術構造出孔邊徑向界面裂紋對sh波散射的模型，利用green函數建立直接求解m型裂紋尖端動應力強度因子的定解積分方程組。
  3. With the help of these solutions and definitions of electroelastic field intensity factors, exact expressions for mode, mode and mode stress intensity factors as well as mode electric displacement intensity factor are obtained

    使用這些解析解和電彈性場強度的定義，得到了裂紋前沿型、型和型應力強度因子以及電位移強度因子的精確表達式。
  4. At one time complex structure and area of weariness crack ( including whole suspension hollow axis of swivel, half suspension adopted axletree, substituting holistic grinding steel wheels for wheel - hoop compounded wheels, different wheel - axletree structure of different locomotives, different transmission chamfer machining step of axletresses and driven traction gear etc. ) centralizing make wave clutter and repeat to disturb recognition of real fault wave

    同時，由於全懸掛空心軸、半懸掛抱軸承等復雜結構車軸的使用和整體碾鋼輪陸續替代輪箍組裝式車輪，各型機車輪軸結構不同，車軸加工臺階和過渡圓角不同，從動牽引齒輪與車軸採用過盈裝配等，在這些結構復雜且疲勞裂紋產生集中的區域，探傷時極易發生波形交織和重復，難以識別真正缺陷波。
  5. Bi - material interfacial fracture theories are researched with a phenomenon that cracks extend along interface. a gradient invading model of interface crack at the crack tip can gain stress fields along interface. so a formula of energy release rate for 3d braided cmc is deduced and the corrected formula of the energy release rate is examined with test results

    研究了裂紋沿界面擴展的雙材料界面斷裂理論，利用傾斜侵入界面的裂紋模型解析了裂紋尖端沿著界面的應力場，推導了表徵三維編織cmc復合材料斷裂韌性的能量釋放率公式g _ c ，並且用試驗結果驗證了能量釋放率公式的正確性。
  6. For laminate containing penetrated crack, " two planes " model is introduced to analyze the influence of repair parameters on the strength of repaired laminate, including such as patch size, patch thickness, patch layout, the location of rivets

    摘要針對含穿透性裂紋的損傷層壓板，採用「兩板」模型建立起機械連接修補結構有限元分析模型，分別計算補片大小、厚度、鋪排方式以及連接件位置等修補參數對修補效果的影響。
  7. Abstract : the time - variant reliability analysis of ship hull girders subjected to the deg r adations of fatigue and corrosion is quantitatively carried out in this paper. th e analytical formulations are derived and simple program is compiled. as a case s tudy, the time - variant reliability of a vlcc tank is calculated. it shows that th e degradation effects of fatigue and corrosion are very important for the load - c a pacity calculation of thsip hull girders. after the second special inspection ( 10 years ), the detailed inspection should be done in order to guarantee the safety of ship navigation

    文摘:定量考慮船體構件疲勞裂紋擴展和環境腐蝕對船體梁承載能力的雙重衰減因素的影響，對船體梁的時變可靠性進行了分析，列出了時變可靠性分析公式並編制了相應的計算程序.以一艘大型油船的結構可靠性為例，表明疲勞裂紋和環境腐蝕在第二個特檢年（ 10a ）之後對船體梁承載能力有顯著的影響，此時開展詳細的船體結構檢查對保證船舶營運的安全性具有重要的意義
  8. Based on lots of experiments, by combining the progress in mesomechanics with fea computation and analysis, this thesis investigated many parameters " effect on crack with an arc - tip in plain mixed - mode fracture, and compared existing criteria for fracture initiation, fracture direction and fracture mode transition

    本文主要的工作是在試驗的基礎上，結合細觀斷裂力學當前的研究進展，通過有限元計算和模擬分析，研究了平面復合型斷裂中各種力學參量對圓弧尖端裂紋斷裂的影響，比較分析了現有的起裂判據、斷裂擴展方向的判定方法以及斷裂模式的轉換條件。
  9. What is taken account of includes the effects of the material, geometrical shape, manner of loading, ratio of cycle stress, residual stress and short crack in weld toe on fatigue strength

    該模型考慮了材料、幾何形式、荷載形式、應力比、尺寸效應、殘余應力及焊趾根部短裂紋等因素對疲勞強度的影響。
  10. ( 4 ) the fatigue cracks propagate mainly transgranularly at room temperature, while those propagate mainly intergranularly at high temperature

    隨著溫度的升高，疲勞裂紋擴展方式由穿晶型為主向沿晶型為主轉變。
  11. 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。
  12. Fatigue experiments were performed to obtain the fatigue lifetime under the different loading. the parameters for law of the fatigue crack growth were obtained by crack growth experiments. in order to study the fatigue characteristics at high temperature, creep tests were also done

    本文對多種典型焊接試件開展了諸多的試驗研究工作：進行單軸靜載拉伸試驗以確定構件的強度；進行疲勞壽命試驗以測得疲勞壽命曲線；進行疲勞裂紋擴展試驗以獲得試件的疲勞裂紋擴展規律paris公式；進行蠕變試驗以考察焊接試件疲勞持久特性；進行剩餘壽命試驗以獲得試件的剩餘壽命。
  13. 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。
  14. The analyzing result indicated that reflective crack ' s propagation model is decided by the stress at top of the crack, which often is a compound propagation model

    分析計算結果表明，反射裂縫的擴展方式取決于裂縫尖端的受力情況，一般為復合型裂紋擴展。
  15. The proposed model - beam - particle model is validated to simulate some routine tests of concrete which including uniaxial compressive test and uniaxial tensile test to prove that the numerical model can effectively to describe the complete failure process caused by the initiation, propagation and coalescence of cracks. the influence of the meso - mechanical properties to the macroscopic failure behavior is discussed in this paper. the proposed model is employed to simulate the dynamic failure process of concrete under impact loading, and analyse the failure behavior of concrete with different impacting velocity

    本文建立了混凝土的梁-顆粒數值模型，並利用該模型進行了混凝土在單軸壓縮和拉伸載荷作用下，混凝土從微裂紋的萌生、擴展、貫通直到宏觀裂紋產生導致破壞的全過程的數值模擬，探討了混凝土材料細觀結構對其宏觀力學行為的影響；利用該數值模型，模擬了鋼彈以一定的初始速率垂直侵徹混凝土圓板的動態過程，對計算結果進行了動畫顯示，並分析了不同鋼彈初始速率對混凝土圓板破壞形式的影響。
  16. The result indicates : when the transverse crack was contained in the crankshaft, the crankshaft ' s natural frequency reduced obviously, but does not change the vibration form of every type

    結果表明，曲軸在含有橫向裂紋后，其固有頻率有很明顯的降低，但是不改變各階振型的振動形式。因此，固有頻率的降低可以作為曲軸中含有橫向裂紋的標志。
  17. By a model which is based on the constitutive relation of the material and energy release rate, expressions are developed

    利用本構關系並建立模型，得出了裂紋擴展速度表達式，初步解釋了實驗結果。
  18. One of the main failure patterns is caused by fatigue crack growth, so it is necessary to research material fatigue crack growth rate. so for, it is still a difficult problem to measure crack length at elevated temperature

    裂紋疲勞擴展導致的破壞成為設備失效的主要型式之一。因此對材料在高溫下疲勞裂紋擴展速率的研究成為工程界的迫切需要。
  19. Base on failure analysis and stress distribution analysis of the stuffing box using the lame formula and software ansys in predigested model, it is found that the composition of the material accorded with the requirement for stuffing box, and the microstructure with few impurity was qualified

    摘要對產生裂紋的填料盤進行了失效分析，通過拉梅公式和有限元分析軟體對填料盤簡化模型進行了受力分析。
  20. The method in which the whole solution and the local solution is contrasted is applied to deduce the stress intensity factor solution for the model crack of the orthotropic materials, and then the influence of the materials on the stress intensity is investigated briefly

    摘要利用對比全場解和局部解的方法，得出了正交異性材料型裂紋的應力強度因子表達式，並將材料常數對其的影響做了簡單的探討。
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