ductile fracture 中文意思是什麼

ductile fracture 解釋
韌性斷口
  • ductile : adj 1 （金屬等）易拉長的，延性的，可延展的；可鍛的。2 （黏土等）可塑的，易變形的；柔軟的。3 易教...
  • fracture : vt. ,vi. （使）破裂；（使）折斷；（使）斷裂。n. 1. 破裂，折斷，斷裂。2. 裂痕，裂縫，裂面。3. 【醫學】挫傷，骨折。4. 【礦物】斷口；【地質學；地理學】斷層。
  1. Metallic materials - standard test method for jic, a measure of ductile fracture toughness

    金屬材料延性斷裂韌度jic試驗方法
  2. Analysis of tendency of ductile fracture at corner of workpiece during grooveless rolling

    無槽軋制軋件角部的韌性斷裂趨勢分析
  3. Micromechanics analysis and test on the ductile fracture of pressure vessel materials

    壓力容器材料韌性斷裂細觀力學分析與測試
  4. Meso mechanical analysis of effect of initial damage on ductile fracture initiation toughness of steel

    初始損傷對鋼的延性起裂韌性影響的細觀力學分析
  5. Prediction of the forming limit in bulging of different sheet metals using a ductile fracture criterion

    應用韌性斷裂準則預測不同材料的脹形極限
  6. Experimental studies on ductile fracture mechanism of aluminum alloy 2a

    12韌性斷裂機制的實驗研究
  7. The ductile fracture of metal is one of the most important problems in fracture mechanics

    金屬材料的韌性斷裂是斷裂力學研究的重要問題之一。
  8. To predict the forming limit in sheet metal forming, a ductile fracture criterion is introduced into the finite element simulation

    摘要為了準確地預測板料成形極限，將韌性斷裂準則引入到有限元模擬中。
  9. The problem of ductile fracture of metals under complex stress has been investigated extensively, but has not been resolved as yet

    金屬材料在復雜應力狀態下的韌性斷裂是斷裂力學研究的重要問題之一。
  10. Study two kinds of fracture modes of i - ii complex ductile fracture of metal under room temperature and positive triaxiality

    本文對金屬材料?復合型韌性斷裂存在的韌窩型和剪切型兩種斷裂模式進行了討論。
  11. Research on 3d fem prediction of sheet metal forming limit based on ductile fracture criterion

    基於延性斷裂準則的板料破裂極限三維有限元預測方法研究
  12. The fractorgraphy analysis show that in the layer rich in w and mo, the feature of fracture is brittle fracture which follow the bordline of crystal. in sections rich in the felt metal, the feature of fracture is ductile fracture. in w - mo layer, the feature of fracture are brittle fracture and some ductile fracture

    斷口形貌特徵研究表明，富w區、富mo區主要為沿粒界脆性斷裂；粘結金屬發生韌性斷裂； w - mo混合區為顆粒的沿粒界脆性斷裂和粘結相的韌性斷裂的混合型斷裂；富ti區為典型的穿晶解理斷裂； mo - ti混合區以穿晶解理斷裂為主，顆粒邊界表現出準解理斷裂特徵。
  13. 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。
  14. The relative density of the sample has reached as high as 97. 4 % of fully dense. the mean micro hardness has reached hv496. 3. the fractography of the fracture section of the tensile sample was characteristic of dimple typically which indicated that the fracture belong to ductile fracture

    ；試樣相對密度可以達到理論值的97 . 4 ；硬度方面由於激光立體成形工藝的特點，最後幾層的硬度比開始時的高，平均硬度達到了hv496 . 3 ；拉伸試樣的斷口形貌具有典型的韌窩特徵，屬于延性斷裂。
  15. The results show that the fracture of a broken tube is a kind of expansion form and a typical ductile fracture, and has instantaneous overheat blowout characteristic under the high temperature

    結果表明，爆管斷口為脹開式爆口，為典型的塑性斷口，具有高溫瞬時過熱爆管特徵。
  16. This paper overviewed the prediction methods of forming limit in sheet metal forming, which included forming limit stress diagram, the maximum forming thinning ratio, forming limit diagram and ductile fracture criteria ( dfc )

    摘要對板料成形中的成形極限應力圖、最大變薄率、成形極限圖以及韌性斷裂準則等預測成形極限的方法，進行了綜述和分析。
  17. Non - ductile fracture

    無塑性破壞
  18. The development of ductile fracture arrest control technique in natural gas pipelines

    天然氣管道延性斷裂止裂控制技術進展
  19. Based on the histories of stress and strain calculated by the finite element simulation, the initiation of fracture is predicted by means of the ductile fracture criterion

    在有限元模擬獲得的應力應變場基礎上，應用韌性斷裂準則預測板料斷裂的發生。
  20. The mechanism and characteristic of ductile fracture of high pressure gas transmission pipeline steels is discussed in this paper, and some work in china on welding consumables and techniques and weldability of high strength and toughness pipeline steels is also reviewed

    摘要主要介紹了高壓輸氣管線延性斷裂的特徵、形成機制，以及我國在高強高韌性管線鋼焊接材料、工藝及焊接性方面的一些研究工作。
分享友人
分享到 Line

分享到臉書