模縫裂紋 的英文怎麼說

中文拼音 [mófénglièwén]
模縫裂紋 英文
seam check
  • 模 : 模名詞1. （模子） mould; pattern; matrix 2. （姓氏） a surname
  • 縫 : 縫名詞1. （接合處） seam 2. （縫隙） crack; crevice; fissure; slit
  • 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
  1. The result showed that the failure of the steel die was mainly attributed to the generation of a large amount of meshy cracks on chromium plating surface

    結果表明，鍍鉻層表面存在網狀裂紋是導致模具表面出現微裂縫的主要原因。
  2. The macro - mechanical properties ( the elastic constants ) of the fractured rocks can be connected with the micro - parameter of crack ( crack number density )

    這個模型將微觀隨機參數（裂紋數密度）與非均勻裂縫介質的宏觀性質（彈性常數）直接聯系起來。
  3. In spite of that, the cracks propagate stably in specimens for all types of tests. thus the paris formula can be used to describe the fatigue crack propagation, and the values of fatigue fracture parameters in the paris formula are regressed by using the results of fatigue damage and stress intensity factors computation

    盡管如此，不論對哪種疲勞試驗，其試件疲勞裂縫擴展主要表現為穩定擴展，可以運用paris公式描述疲勞裂紋擴展階段，並利用疲勞損傷數值模擬計算結果和裂縫擴展過程中的應力強度因子回歸了疲勞裂縫擴展速率公式中的疲勞斷裂參數。
  4. 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。
  5. To model the elastic properties of rocks with distribution fractures, a new heterogeneous anisotropic constitutive model was presented. in this model, the autocorrelation function is used to describe the spatial distribution of crack number density

    提出一種新的非均勻各向異性本構模型來模擬具有分佈裂縫的巖石，在這個模型中用自相關函數來描述裂紋數密度的空間分佈。
  6. At first, ploygon aggregate structure of concrete is randomly generated in two - dimensional plane with monte carlo method on the meso - level. then, the growth process of a crack of concrete 3 - point bending beam specimen is analyzed by fem, according to the criterion of maximum circumferential tensile stress. and the path of crack to spread in mortar, aggregate and interfaces of them is gained by the ultimate fracture criteria in construction standard that the width of crack should not be more than 0. 2mm

    首先，在細觀層次上，根據蒙特卡羅隨機抽樣原理，在二維平面上建立了混凝土多邊形隨機骨料結構模型，然後採用有限元計算方法，根據最大周向正應力準則，對三點彎曲梁構件進行了開裂過程的模擬，並以建築規范中構件裂縫小於0 . 2mm的要求為最終破壞標準，得出了裂紋在基質、骨料及界面的擴展路徑。
  7. As examples, heterogeneous anisotropic fractured rocks of which the autocorrelation functions of crack number density can be described as 2 - dimensional exponential ellipsoidal or gaussian function were simulated especially. the results show that : 1 ) the random distribution characters could be different for different elastic constants under the same random distribution of crack number density. 2 ) the exponential ellipsoidal heterogeneous anisotropic random fractured model could be a suitable model for the multi - scaled and self - similar heterogeneous media

    模擬結果表明： 1 ）彈性常數的分佈特徵與裂紋數密度的分佈特徵不相同，並且裂紋數密度對不同的彈性常數有不同程度的影響； 2 ）指數橢圓型隨機裂縫模型適用於模擬具有多尺度、自相似的特性非均勻裂縫巖石； 3 ） gaussian型隨機裂縫模型適用於模擬單尺度、平滑的非均勻裂縫巖石。
  8. On the basis of measured results of contact pressure on abundant literature and the computed results in this paper, simplified contact pressure models have been put forward. the finite element program msc. nastran was selected to analyze the response of pavement under the two modelled loads. the effects of axle load and material properties were studied, and the effects of truck load on permanent deformation and fatigue crack were also discussed

    本文首先根據輪胎胎面花紋類型的不同，提出接觸面的簡化模型；然後參考相關輪胎與路面接觸壓力的測試結果，並結合本文的測試結果及輪胎與路面接觸壓力的模擬計算結果，提出接觸面內的壓力分佈模型，即輪胎作用於路表的荷載簡化模型；接著利用有限元軟體msc . nastran對瀝青路面在該荷載模型作用下的響應進行計算分析，還討論了軸載的變化及路面材料參數的變化對路面結構響應的影響，並且對車輛荷載對車轍和疲勞裂縫的影響進行探討。
  9. The main work and achievements are summarized as follow : hudson ' s crack model and liu ' s fracture model were introduced. the anisotropic properties of rocks with dry and water - filled parallel fractures were discussed

    全文主要工作包括以下幾個方面：介紹了hudson的幾種裂紋模型以及劉恩儒等提出的裂縫模型，用彈性常數隨角度的變化關系圖討論了含排列干充水裂縫巖石的各向異性。
  10. At first, the author has analyzed the theory, mechanism and shock - absorption in pre - split blasting, studied the rising of crack, expanding and stopping, and did various factors which influence on the crack of rock in pre - split blasting. the main factors have been determined to be the strength of mineral and rock, the diameter of drill, the type of explosive and the growth degree of crack. then, the author has researched bp neural networks " work principle, structure and defectiveness

    首先分析了巖石成縫的理論、機理和減震作用，研究了裂紋的起裂、擴展和止裂；分析了各種因素對巖石預裂爆破成縫的影響，確定了礦巖強度、孔徑、炸藥類型和裂隙發育程度作為主要影響因素；並研究了bp神經網路工作原理、結構和缺陷，把改進的bp神經網路運用在巖石預裂爆破參數設計中，建立以礦巖強度、孔徑、炸藥類型和裂隙發育程度為主要影響指標的bp神經網路的預裂爆破參數設計識別模型；運用matlab6 . 5語言開發了爆破參數設計的智能系統，實現了預裂爆破參數設計的自動化，用工程實例驗證系統模塊的功能。
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