裂紋尖端 的英文怎麼說

中文拼音 [lièwénjiānduān]
裂紋尖端 英文
crack tip
  • 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
  • 端 : Ⅰ名詞1 （東西的頭） end; extremity 2 （事情的開頭） beginning 3 （門類; 方面） item; point 4 （原...
  1. Research about ctod and its components 8 ", " shows that the direction angle of ctod vector is identical with the fracture angle of void - mode fracture, which is obtained through experiments, and it is also identical with the result got by peak value line of stress triaxiality. besides, 8 i " was compare with vgc as criterion for initiation of void - mode fracture

    對裂紋尖端張開位移ctod及其張開型分量~ 1和剪切型分量~ 11的分析表明，在試件發生韌窩型斷裂時，按照圓弧裂紋中ctod矢量的垂直方向預測的斷裂角與試驗測得的斷裂角符合較好，與三軸度脊線預計的結果也比較一致。
  2. Scattering of sh - wave by a radial collinear crack at the edge of arbitrary - shape - cavity in isotropy media is studied. the solution of dsif at crack tips is obtained

    研究了各向同性介質中任意形孔邊徑向裂紋對sh波的散射，求解了裂紋尖端的動應力強度因子。
  3. 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。
  4. Numeral results of dsif at radial crack tips of ellipse and square cavities are provided. then the influences of different shape cavities upon the dsif at the crack of their edges are discussed. 5. scattering of sh - wave by a radial interface crack at the edge of arbitrary - shape - cavity is studied

    給出了橢圓孔和方孔孔邊徑向界面裂紋尖端動應力強度因子的數值結果，討論了在不同形狀孔、不同入射波數、不同入射角和不同材料常數組合情況下孔邊徑向界面裂紋尖端動應力強度因子變化的規律。
  5. The study on interfacial crack - tip fields under pressure and shear

    壓剪載荷作用下界面裂紋尖端場的研究
  6. Initially 24 mm holes were drilled at the crack tips to arrest propagation.

    最初，在裂紋尖端鉆24mm的孔以阻止其擴展。
  7. This paper, based on the finite element method ( fem ) and utilizing two different means, analyzes the stress and strain field distribution of central through crack tip on a finite flat plate, and calculates the stress intensity factor of the crack tip

    摘要基於有限元分析方法，對有限大平板中存在的中心穿透裂紋，分別用不同的方法分析其裂紋尖端應力、應變場分佈，計算出裂紋尖端的應力強度因子。
  8. Finite element method ( fem ) is used to quantificationally simulate the current density distribution of the whole cfrc sample, and to explain the mechanism and reason for precipitations " depositing in the crack tip

    利用有限元定量地模擬了整個試件的電流密度分佈狀況，闡述了沉積物在裂紋尖端的沉積狀況及其原因。
  9. By using the eigenfunction expansion technique, a one - dimension finite element formulation is then developed to determine the eigensolutions to the 2d heat conduction problem at the crack tip, which discretizes the sectorial domain circumferenially

    利用特徵方程展開方法，可獲得分析裂紋尖端處二維熱傳導特徵解的一維有限元列式。
  10. Finally, an energy approach is combined with the fem in the simulation of the crack propagation along the fiber / matrix interface in a pull out process. the simulated results are in nice conformity with experimental results. the second part of the research deals with the characterization of the failure process in the fragmentation tests, which is one of the most frequently used test methods in studying thermal mechanical properties of fiber / matrix interfaces

    在這一部分工作的最後，採用能量法與有限元法結合起來，模擬纖維抽拔試驗中裂紋的擴展:針對以往研究工作中的不足之處，在模擬中使用能量釋放率，在表徵界面破壞時，所使用的應力強度因子考慮了纖維和基體兩種材料的不同屬性，並考慮裂紋尖端的單元奇異性，來研究裂紋長度和溫度對裂紋擴展的影響。
  11. With the adoption of the rate - sensitive constitutive relationship, it is asymptotically investigated the propagating tip fields of antiplane mode iii crack under the condition of incompressibility, and the dynamics equations are obtained separately governing the stress and strain fields at the crack - tip

    採用這種率敏感型本構關系，本文對不可壓縮條件下反平面型擴展裂紋的尖端場進行了漸近分析，分別求得了其裂紋尖端應力和應變場的動力學控制方程。
  12. Varieties of dynamic intensity factors in the crack - tip field, extensions of cracks going through the joint planes for different distances between hole and joint were analyzed especially under the condition that the initial cracks and joint planes had different separation angles

    實驗結果分析表明，爆生裂紋穿過節理面時，裂紋尖端的動態強度因子和裂紋擴展速度顯著下降，穿過節理面后，強度因子又增強；裂紋穿過節理面時，裂紋會沿節理面偏離一段距離后沿原方向繼續擴展。
  13. In this paper, the high - temperature low - cycle fatigue life and fatigue crack propagation life tests are carried on the cylindrical axial symmetry specimens having precrack or non - precrack with different types of notches of 16mnr steel in common use in the petrochemical industry contacting coke drum equipment, the stress / strain and the range of stress / strain of dangerous points are received through stress analysis of the specimens using finite element program under multi - axial stress state. at last, the equations of evaluating the high - temperature low - cycle fatigue life and the fatigue crack propagation life are found through using the least - square regression method

    本文採用無預裂紋和帶預裂紋環狀缺口圓柱形試樣，進行了石化焦炭塔設備常用材料16mnr多維應力狀態下不同缺口形式的高溫低周疲勞總壽命試驗及裂紋擴展壽命試驗，並利用有限元程序對試樣缺口周圍及裂紋尖端附近進行了軸對稱多維應力狀態下的應力、應變場分析，來評價材料不同條件下的高溫低周疲勞總壽命和裂紋擴展壽命，最後利用最小二乘回歸方法，得到了該材料高溫低周疲勞總壽命和裂紋擴展壽命評價方程。
  14. The following conclusions are gained : ( 1 ) the located shear band prongs the ligament near the top crack tip and the structure may occur shear - mode fracture at the angle of 155 ? to crack when load is 87. 92mpa ; the mode of fracture of the flange joint structure is not possible to be void - mode ; ( 2 ) it is proved that loading and then unloading repeatedly can not increase the possibility of invalidation of the structure when the times of loading and unloading are not too more when load is operating pressure ; the structure is safe when the vessel is operating ; ( 3 ) in the fe model of the thesis, not considering the influence of water pressure test which is in the process of fabrication of vessel in fe results in larger deviation in analysi

    得出了以下結論：在8792mpa的載荷下筒體一封頭連接結構處的集中剪切帶貫穿韌帶，可能發生沿與原裂紋線成155 「角方向剪切型斷裂；筒體一封頭連接結構不可能發生韌窩型斷裂； （ 2 ）在工作壓力下進行次數不多的反復加、卸載，結構不會破壞，也不會喪失安定性：結構在工作狀態下是安全的； m在本文的彈塑性有限元模擬計算中，對于裂紋尖端進行力學分析時，不考慮壓力容器製造過程中水壓試驗的影響，將導致計算結果出現較大的偏差； （ 4 ）筒體完全屈服時的載荷為92石3mpa ，封頭完全屈服時載荷為86
  15. Caustics analysis of mode dynamic crack tip in functionally gradient materials

    型動態裂紋尖端的焦散線分析
  16. The ground area was also checked with dye-penetrant to ensure that no crack tip remained.

    打磨區也用著色滲透劑進行了檢查，以便確保無裂紋尖端留存。
  17. Using the complex potential method in the plane theory of elasticity of an anisotropic body, a series solution to the stress field of a finite plate containing multiple cracks subjected to arbitrary loads is obtained by means of the faber series expansion, and the stress intensity factors at the crack tips are calculated based on the theories of fracture mechanics. equivalence yield stress is introduced in order to consider the effects of the plastic zones, with which the strip yield criteria is developed in the article so that the effects of structural size and the crack interactions on the stress distribution can be considered accurately. the effects of plate size, crack size and crack distributions on the stress intensity factors as well as the residual strength of the plate are studied detailedly

    採用各向異性體平面彈性理論中的復勢方法，以faber級數為工具，得到了含多裂紋有限大板在任意載荷作用下應力場的級數解，並應用斷裂力學方法確定裂紋尖端的應力強度因子；引入當量屈服應力考慮裂尖塑性區的影響，提出基於帶屈服準則的剩餘強度分析模型，能夠充分考慮結構尺寸和裂紋之間相互作用對應力場的影響；通過數值計算詳細討論了結構尺寸和裂紋之間位置關系對應力強度因子和結構剩餘強度的影響規律，得到了一系列對工程應用具有實用價值的結論。
  18. Positive electrode and negative electrode that execute spanning crack prevention are simulated as the source point and merged point, so the temperature field owing to the concentration of current around the crack tip is educed at the moment when the current is switch on

    將實施跨越止裂時的正、負電極比擬為電流場中的源和匯，從而導出了在瞬間電流作用下，裂紋尖端附近區域因繞流而形成的溫度場。
  19. 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。
  20. In conclusion, the rationality and effectiveness of the constitutive model applied in the paper are verified through theoretical analyses and corresponding numerical calculations to provide a feasible method for final solutions of the problems of the asymptotic crack - tip field, as well as. theoretical references for solutions of the difficult problems encountered in engineering practices

    總之，通過理論分析和相應的數值計算，驗證了本模型的合理性和有效性，為最終解決裂紋尖端漸近場問題提供一種可行的方法，並且對于解決工程實踐中所遇到的難題提供理論上的參考依據。
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