brittle fracture 中文意思是什麼

brittle fracture 解釋
脆裂
  • brittle : adj 1 易碎的，脆的；脆弱的；易損壞的。2 虛幻的，靠不住的。3 （聲音等）尖利的；容易生氣的。4 （態...
  • 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. Crazing is the invariable precursor of brittle fracture.

    出現小裂紋必然是脆性斷裂的前兆。
  2. Maximum circumferential stress criterion of brittle fracture for v - notch

    型切口脆性斷裂的最大周向應力準則
  3. It seems the ncz silicon has a higher bdt temperature compared with cz silicon ' s. it is suggested that the elastic effects and the electronic effects of nitrogen doped in silicon made the bdt temperature higher. the observation of fracture surface showed that it was curves at high temperature in brittle fracture, but smooth planes at room temperature

    當溫度升高達到硅材料的脆塑轉變時，材料的斷裂強度有個很大的提高，但是首次發現含氮硅單晶卻不明顯，而且摻氮的硅單晶脆塑轉變溫度比普通單晶高，可能是氮的摻入改變了硅材料的內部晶體結構及電子結構。
  4. Analysis on the causes of no yield point in tension and brittle fracture in cold bending of 20mnsi hrb

    熱軋帶肋鋼筋冷彎脆斷和無屈服點原因分析
  5. Abstract : by means of metallographical examination and sem, the microstructure characteristics, macro - and microfractographs of the brittle broken wheel hull bolt of bj212 automobile have been studied. the results show that the thin - headed screw, with excessively deep carbonitriding layer and hardening layer, has less resistance to brittle fracture in the thin area of its head. at the root of the head connecting the stem, a tensile stress may emerge owing to the non - even quenching stress. those are the two reasons for low torque fracture of bolt

    文摘:藉助金相、掃描電鏡等手段對低扭矩脆斷的bj212汽車輪殼螺栓的金相組織特徵，宏觀和微觀斷口形貌等進行了研究，結果表明：這種頭部薄的螺栓，滲層和淬透層過深，使頭部薄區脆斷抗力降低，在頭部與桿的根部，由於淬火應力不均勻導致根部產生拉應力，均是導致螺栓低扭矩斷裂的原因。
  6. The fractal is a geometrical figure with self - similar symmetry, and it is an important tool for characterizing irregular structures in nature that are self - similar on certain length scales. for example, the koch curves can be viewed as a mathematical model for coastlines, percolation model can be used to mimic mixture of mental and insulator, self - avoiding walks can serve as a model for linear polymers, and rock fracture mode can stimulate the process of brittle fracture of rock, and so on

    分形是具有自相似對稱性的幾何圖形，可用來模擬自然界中在一定尺度范圍內具有自相似對稱性的不規則結構，如koch曲線可用來模擬海岸線，滲流模型可模擬金屬絕緣體混合物，自迴避無規行走模型可模擬線性聚合物，巖裂模型可模擬真實巖體的脆性破裂等。
  7. The brittle fracture of steel columns and the damage to column bases were found in kobe earthquake

    在阪神地震中還發生了鋼柱的脆斷和柱腳的破壞。
  8. Results show that the brittle fracture is mainly caused by hydrogen brittleness that results from the oxidation arid absorbing hydrogen of copper tube during braze welding

    同時在加熱和冷卻時，由於異種材料的熱脹系數差別過大，產生的較大熱應力作用於已存在的裂紋，促使裂紋二次擴展，甚至使得晶粒脫落產生空洞，最終導致焊接接頭漏氣失效。
  9. Through the research on the crystallite of the composites modified with silicone coupling agent and pp - g - mah, research showed that the size of the crystallite and oriented crystallization had obviously influence on the mechanical performances. the sem results showed that nano - sio2 was dispersed well in pp, which promoted the matrix undergo shear yielding rather than brittle fracture

    通過對硅烷偶聯劑?馬來酸酐接枝聚丙烯共聚物作為界面改性劑改性pp微晶的研究，表明微晶尺寸變化與復合材料的力學性能有關；在界面附近形成擇優取向的結晶層，促使基體發生屈服變形，提高了復合材料的韌性。
  10. Except for a small length of web at the first fracture location, none of the cracks exhibited a brittle fracture mode of crack propagation.

    除第一個斷裂位置的一小段腹板外，沒有一條裂紋顯示出裂紋擴展的脆性斷裂模式。
  11. Brittle fracture criterion for mixed - type of sharp v - notch

    形切口脆斷準則
  12. Study on the brittle fracture mechanism of crwmn nail die by composite treatment

    制釘模脆斷機理研究
  13. Three kinds of fracture facet of a high nitrogen bearing austenitic steel in low temperature brittle fracture

    高氮奧氏體鋼低溫脆斷中的三種斷裂刻面
  14. Testing of high - strength steel building elements for resistance to hydrogen - induced brittle fracture and advice on the prevention of such fracture

    高強度結構鋼部件耐氫誘導易脆斷裂的特性.用支柱試驗
  15. Maximum circumferential stress criterion of brittle fracture at the interface edge of bonded materials

    結合材料界面端脆性斷裂的最大周向應力準則
  16. It was found that the cracks can penetrate the interphase and the fiber rapidly when the interphase is thin, which causes the low flexural strength and fracture toughness, as well as the composites " brittle fracture. while the interphase is thick, multiple toughening mechanisms such as the crack deflection and matrix cracking can be activated, which cause the composites " flexural strength and fracture toughness is high and the composites " non - brittle fracture

    當界面相較薄時，基體裂紋能夠迅速穿過界面相和纖維，復合材料具有較低的彎曲強度和斷裂韌性，表現為脆性斷裂模式；當界面相較厚時，復合材料能產生裂紋偏轉、基體開裂等多種增韌方式，具有較高的彎曲強度和斷裂韌性，呈韌性斷裂模式。
  17. Brittle fracture criterion for sharp v - notch

    形切口的脆性斷裂準則
  18. The results showed that the fracture of the tooth - razor was brittle fracture, the material quality was normal, the main fracture reson was that the carbide in the microstructure of the tooth - razor was distributed as reticulation, the brittleness of the razor was increased and the toughness was decreased, so the tooth of the razor was broken by external force when it was working

    結果表明，該剃齒刀的斷齒屬于脆性斷裂，主要是顯微組織中的碳化物分佈不均勻（呈網狀分佈） ，使刀具的脆性增大而強度、韌性下降，導致刀具在使用過程中由於外力的作用發生斷齒。
  19. 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。
  20. Hydrogen brittle fracture analysis of two specimens in different conditions

    兩種零件不同條件下氫脆斷裂分析
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