脆性破裂 的英文怎麼說
中文拼音 [cuìxìngpòliè]
脆性破裂
英文
brittle fracture- 脆 : 形容詞1 (容易折斷破碎) fragile; brittle 2 (較硬的食物容易弄碎弄裂) crisp 3 (聲音清脆) (of ...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 破 : Ⅰ動詞1 (完整的東西受到損傷) be broken; be damaged 2 (使損壞) break; break down; damage 3 (使...
- 裂 : 裂動詞[方言] (東西的兩部分向兩旁分開) open
- 破裂 : break; fracture; burst; split; rupture; crack
-
It can be seen from the results that the control beam had good plastic property in the static failure experiment after two million fatigue loading circles. all specimens with corroded main bars were failure under the fatigue loads within one million fatigue circles. fatigue lifespan of reinforced concrete beam was sharply shortened after main bars corroded in it and the beam was destroyed bristly without any prediction
試驗結果表明,振動測試不能夠對銹蝕鋼筋混凝土梁的疲勞破壞做出可靠的預測;對比梁在經過200萬次疲勞循環加載后的靜力試驗中仍表現出良好的延性破壞特徵;銹蝕梁在100萬次疲勞循環內均因主筋疲勞斷裂而破壞;主筋銹蝕使得梁的疲勞壽命急劇縮短;梁發生脆性破壞而沒有徵兆。A cusp catastrophe model of unstable failure process of quasi - brittle materials
準脆性材料破裂過程失穩的尖點突變模型Keywords : fractography, brittle material, failure mode, model rock
關鍵詞:裂形學、脆性材料、破裂模式、人工巖石。In the first part of this dissertation, theory of fracture mechanics of the frozen soil has been presented. a general strength theory based on fracture mechanics was proposed, and the validity of the theory using in frozen soil was discussed. the fracture toughness values for different kinds of cracks extension were determined, such as the plane strain fracture toughness for mode i cracking ( kic ), fracture toughness for mode cracking of frozen soil and the intersection of frozen soil and concrete
論文第二章為凍土斷裂力學的基本理論,包括斷裂力學在凍土研究中的工程適用性、條件適用性、平面應變斷裂韌度測試的適用條件等,給出了凍土斷裂韌度k _ ( c ) 、 k _ ( c ) 、 -型復合斷裂測試的基本原理及試驗方法,並基於weibull脆性破壞理論推導了凍土三點彎曲試樣k _ ( c )尺寸效應系數,為後面的工作提供理論基礎。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。Abstract : based on the data obtained from field observations and deformation monitoring, this paper deals with the deformation and failure of a double - decked slope composed of soft rock strata in its lower part and hard - brittle rock strata in its upper part. it is demonstrated that the deformation of this kind of slopes is always initiated by the non - homogeneous rheological compression of the lower soft rock strata, leading to the tension fracture and toppling of the upper hard rock strata, and at last the sliding of the whole deformed body will be caused by the shear failure along the stress - concentration zone in the lower soft rock mass under the actions of the gravitational loading and infiltration water
文摘:以現場考察和變形監測資料為依據,探討一個下部有軟弱基座,上部為硬脆性坡體的「二元結構」邊坡的變形破壞問題,揭示這類邊坡的變形總是以下部軟弱巖體的不均勻壓縮流變為先導,進而引起上部硬脆性坡體的拉裂與傾倒,最終通過滲入水的作用,使下部承載狀況已進一步惡化了的軟弱巖體,沿剪應力集中帶發生剪切破壞而導致整個變形坡體的下滑。With the decreasing of heterogeneity, the main failure process presents brittle behavior, and vice versa, with the increasing of heterogeneity, failure process presents ductile behavior
隨著非均勻程度的降低,主破裂呈現脆斷模式,而隨著非均勻程度的增加而呈現韌性破壞特徵。In order to verify these criterions, tensile experiments are carried out for many kinds of samples made out of plexiglas with a planar v - notch under mixed - mode of i and ii
為了檢驗上述脆性斷裂準則,用脆性材料pmma加工成多種型、 -復合型v型切口試樣,進行了拉伸破壞實驗。Principle : it is adoping tattered dose to blend inner place the pouing perforate against water, utilizes such water action to come into being swelling the pressu ` re, by the rock, confuses soil forms piece and so on the brittleness substance distends to crack either cuts
原理:它是採用破碎劑與水混合灌入鉆孔中內,利用其水化作用產生膨脹壓力,將巖石、混泥土構件等脆性物體脹裂或切割。But calcium phosphate ceramic with high porosity is such brittle and low toughness that it ca n ' t fit to bone tissue engineering. in order to provide appropriate scaffolds for bone tissue engineering, calcium phosphate was combined with plla to prepare porous material
但磷酸鈣多孔陶瓷材料脆性大,在生理環境中的疲勞與破壞強度不高,尤其在濕環境下斷裂韌性很低,不能制得滿足組織工程要求的高孔隙率,力學性能較高的支架材料。First of all, in order to obtain the nonlinear ice force, the first part concentrates on the research for the physical property of ice. especially on the ductile to brittle transition mechanism
對海冰的非線性物理力學性質進行了總結,特別關注了海冰破壞的韌脆轉變機制以及微裂紋演變對海冰性質的影響。The result of macro - quality experiments show : mineral admixtures markedly slow the hydrating velocity of cement slurry, decrease and delay the hydrating max - temperature, in which steel slag is more effective ; expansive agents compensate concrete shrinkage, enhance the concrete dense degree, strengthen the interfacial layer between fiber and cement matrix and improve the physical mechanics qualities of acic ; minimal admixtures markedly improve the concrete workability property, increase the concrete later intensity & density and the capability of anti - chemical attack and anti - permeability ; hybrid fiber reinforces the toughness of obviously acic by the means of anti - cracking effect of fiber with different sizes and different properties in the corresponding construction levels
實驗結果顯示:鋼渣摻合料能顯著減緩水泥漿體水化速率,降低砂漿的水化溫升並延遲最高溫升時間;補償混凝土收縮,提高混凝土密實度,加強纖維與水泥石的界面粘結,增強混凝土力學性能,但不能明顯改善混凝土韌性。混雜纖維通過纖維的不同尺度與不同性質在相應的結構層次上產生阻裂效應,增韌鋼渣防滲抗裂混凝土;增加混凝土的破壞極限能,極大提高混凝土抗彎曲能力和韌性指數,改善混凝土脆性。The cohesive theory has proved effective in the simulation of complex fracture processes including : the fragmentation of brittle materials ; dynamic fracture and fragmentation of ductile materials ; and the dynamic brazilian test for concrete
已證實此理論對復雜的斷裂過程的模擬是有效的,包括:脆性材料的斷裂、韌性材料的動態斷裂和破碎、混凝土的動態bazilian測試等等。Study on model of damage and flow coupling in brittle rock failure process
脆性巖石破裂過程損傷與滲流耦合數值模型研究The low temperature of liquid oxygen and the vapors it releases not only pose a serious burn hazard to human tissue, but can also cause many materials of construction to lose their strength and become brittle enough to shatter
液氧和其釋放的蒸氣的低溫不僅會導致人體組織的嚴重凍傷,而且還能使許多材料失去彈性,脆得足以破裂。The auto - detection and auto - processing of crack images on the surface of brittle solids
脆性固體破壞表面裂紋的自動識別和處理Further, the mechanical behavior and fracture features under flexural load of the c / sic composites are discussed with mechanical properties contract to microstructure and cvi - pip process parameters. the multiple fracture phenomenon of the c / sic with high toughness connected to multiple interface fracture is found, which supplements the conventional composite theory on the relationship between strength and fracture mode
聯系化學組成及微結構參數、工藝參數,進而研究了彎曲載荷下該c / sic復合材料的行為特徵和失效過程,發現了一種與多重界面失效緊密聯系的、高斷裂韌性的多重損傷累積型材料破壞現象,補充了傳統的脆性基體復合材料強度一斷裂韌性理論。分享友人