matrix cracking 中文意思是什麼
matrix cracking
解釋
基質裂化-
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。 -
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 result show that steel fiber can improve the toughness of matrix concrete after cracking greatly. investigating the existent studying achievement of evaluation methods of toughness of steel fiber concrete. the limitations of these methods are summarized and the principle of founding up the evaluation method of toughness index of steel fiber concrete is given
分析結果認為，鋼纖維對混凝土的作用突出表現在對基體混凝土裂后韌性性能的改善；系統分析了現有鋼纖維混凝土韌性評價方法研究成果，總結出普遍存在的不足及局限性，給出建立鋼纖維混凝土韌性指標評價方法所應依循的原則。 -
Owing to the interfacial cracking which occurs under higher applied load conditions, the composite with high content of tib _ 2 phase exhibited a transition from mild wear to severe wear over the applied load range from 10 n to 80 n. under moderate applied load, increasing the sliding speed caused a decrease in wear rate and friction coefficient of the in - situ composites because the formation of a protective oxide film occurred on the sliding surface and the hardness of the subsurface layer was maintained due to reinforcement of tib2 nanoparticles in the cu matrix
隨著載荷的增加， cu -納米tib2原位復合材料的磨損率和摩擦系數增加；由於在較高載荷下發生表面開裂，高含量的tib2相增強原位復合材料發生了由輕度磨損向嚴重磨損形式的轉化。在中等載荷下由於表面保護性氧化膜的形成和基體中納米tib2相的存在使復合材料具有良好的抗軟化能力， cu -納米tib2原位復合材料的磨損率和摩擦系數隨著滑動速度的增加而下降。 -
Numerical simulation of cracking prevention by electromagnetic heating for the half - embedded looped crack of the metal matrix
電磁發射中固體電樞的磁探針測速方法研究
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