fatigue of materials 中文意思是什麼
fatigue of materials
解釋
材料疲勞-
For rotor steel ( 30crlmolv steel ), the tests of low - cycle fatigue property are done under different temperatures. the fatigue life under different temperatures is researched to make up for the defects of the testing for foreign similar materials. when pull - stretch data is attempted to evaluate low - cycle fatigue data, the result shows that four - point associated method in middle - low life zone is done well under room temperature, but there are large errors of four - point associated method and general - slope method under other temperatures
在本文中，通過與國外同類材料的性能進行比較，國產材料與國外材料共有的材料特徵基本相同；對轉子鋼（ 30crlmolv鋼）進行了不同溫度下的低周疲勞性能實驗，研究其在不同溫度下疲勞壽命，以彌補國外對同類鋼材測試的不足；採用拉伸數據預測低周疲勞壽命時發現，室溫條件下用四點關聯法在中低壽命區預測較好，在高溫條件下四點關聯法和通用斜率法都有較大誤差，需要進行改進。 -
The aviation materials, such as superalloys ( mainly cobalt - base alloys ), titanium - base alloys, stainless steels, ceramics, highly abrasionproof nonmetals, have become excellent clinical materials because of their premium properties of light mass, high strength, fatigue resistance, heat resisting, high reliability and biocompatibility, have been widely applied in surgical implants
航空材料中的高溫合金（主要是鈷合金） 、鈦合金、不銹鋼、陶瓷、高耐磨非金屬等材料以其輕質、高強、高抗疲勞性、高耐熱、高可靠性，並且具有良好的生物相容性等優良性能，已成為臨床中較為理想的植入材料，並被廣泛應用於外科植入物方面。 -
Smart materials and structure have definite requirements of sensor components and driving components, for example, they can adhere well to the matrix and have higher strength, fatigue strength, more broad scope of frequency response and faster response speed, etc. piezodielectric ceramics have characteristic of easily preparing, heat - resistance, wet - resistance, high strength and broad scope of frequency response, etc. furthermore, it has piezoelectric effect and inverse piezoelectric effect, namely it can produce electric potential energy when it is transformed by mechanical strength and its mechanical dimension can be transformed when voltage is put on it
壓電陶瓷能與基體材料很好結合，具有制備容易、耐熱、耐濕、強度高、頻響寬等特點，另外它具有正壓電效應和逆壓電效應，即當它受到機械力變形時，能產生電勢，對它施加電壓時，能改變其機械尺寸，因此它在智能材料結構中既能用作傳感元件又能用作驅動元件。 -
Flexible cellular polymeric materials - determination of physical properties - part 4 : compression set and fatigue characteristics
撓性多孔聚合材料.物理性能的測定.第4部分:壓縮變形和疲勞特性 -
The existed material fatigue performance test curves are dealt with and analyzed, and the non - dimensional stress - strain curve, tangent modulus factor curve and fatigue life curve are drawn based on the experiment data, and these three non - dimensional parameter curves are used to find the inherent rules that the test curves can be replaced each other to some extent. it can be concluded that if the common character and system error of these materials are found, the test curve of a certain material can be used for reference by another material. this is a simple approach about fatigue life estimate and is engineering practical
對已有的材料力學疲勞性能試驗曲線進行分析整理，利用試驗數據繪制了相對應力應變曲線、切線模量因子曲線和疲勞壽命曲線，利用這三種無量綱參數曲線發現了其中存在的規律性，即在某種程度上實驗曲線可以互相取代，並用試驗數據對此進行了討論，並由此推斷，如果找出材料彼此的共性或彼此之間的系統誤差就可以將一種材料的試驗曲線供其它材料參考使用，這是一種估算材料的疲勞壽命的簡便方法，對工程而言具有實用性。 -
Abstract : with the basic concept of damage mechanics and based on the fatigue damage equation of concrete materials, the multistage fatigue damage process of concrete materials is deeply and theoretically analyzed. accordingly the pathway of multistage fatigue damage with the characteristics of independence and continuance is provided, and the non - linearity multistage fatigue damage equation of concrete materials is inferred. the equation clearly reflects that the loading sequence has an effect on the fatigue accumulating life expectancy ; with the use of this equation the effect of overloading on the material life expectancy is analyzed
文摘:利用損傷力學的基本概念，在砼材料疲勞損傷方程的基礎上，對砼材料的多級疲勞損傷過程進行了深入的理論分析，給出了具有獨立性和連續性的多級疲勞損傷路徑，推導出了砼材料的非線性多級疲勞損傷方程，方程明確的反映了加載次序對疲勞累積壽命的影響；利用此方程，筆者分析了超載對材料使用壽命的影響 -
Standard practice for conducting force controlled constant amplitude axial fatigue tests of metallic materials
金屬材料上進行的恆定振幅軸向疲勞試驗 -
Test method for constant amplitude of force controlled fatigue testing of acrylic bone cement materials
聚丙烯骨用水泥材料力控疲勞試驗的恆定幅值的試驗方法 -
Analyses results show that the materials, tension and rigidity of wires, speed of trains, wave speed, and lift forces are primary factors that affect fatigue life of contact wires
分析結果表明，接觸導線線質、張力和剛度以及列車運行速度、波動傳播速度和抬升力是影響導線疲勞可靠性的主要因素。 -
Method of thermal fatigue testing for metallic materials
金屬材料的熱疲勞試驗方法 -
Standard test method for tension - tension fatigue of polymer matrix composite materials
聚合母體混合料拉伸疲勞度的標準試驗方法 -
It is therefore necessary to investigate the fatigue resistance of the materials to the shear fatigue loadings
探討了含裂紋型材筋條的應力強度因子計算。 -
It has shown by the uncertainty of the data of fatigue experimentation and the size deviation of machine accessory and structure component and the original defect of materials that all of the stress and intensity and the factors that affect them are stochastic variables, so we should deal with the problem of fatigue by the method of probability and statistics to making the engineering life deduced by fatigue intensity to be the reliable life under a certain probability
疲勞試驗數據的離散性，零件和構件加工允許的尺寸偏差，材料中分佈的原始缺陷，以及受載零件危險部位應力響應的分佈特性等，都說明應力和強度以及影響它們的因素都是隨機變量，它們有各自的分佈形式，應該用概率統計理論和方法來處理，才能使疲勞強度在工程中所確定的壽命，成為保證某一概率下的可靠壽命。 -
We conduct fatigue crack growth experiment with four kinds of materials through the method, and get complete date of four kinds of materials " fatigue crack growth at first time. and also gain the laws of these four kinds of materials " at between 25 and 550 separately, that is the coefficient and exponent of paris ' s formula. meanwhile finding out the laws of fatigue crack growth of these four kinds of materials with the temperature changing
採用上述試驗方法對四種材料高溫疲勞裂紋擴展行為進行試驗研究，首次獲得了16mnr 、 21 / 4cr1mo 、 21 / 4cr1mov和316l四種材料較為完整的高溫疲勞裂紋擴展數據，並得到四種材料在25 550溫度條件下的疲勞裂紋擴展規律表達式（即所對應的paris公式的系數和指數） ，找到了這些材料隨溫度變化的疲勞裂紋擴展規律。 -
Standard test method for shear fatigue of sandwich core materials
夾層芯材的剪切疲勞標準試驗方法 -
Nylon is one of the best quality snthetic fibers the rubber in dustry use nowadays. the nylon canvas is woven by nylon fibers both in warp and in weft, it is the most widely used fabric in rubb - er industry, and its outstanding merits are its high abrasion resistance. high fensile strength and good fatigue resistance. connvyor belts with nylon canvas inside have the characteristics of thin belt body, high tensile strength, good shock resistance, good troughability, high adhesion between pli - es, splendid flexibility and long working life. nylon conveyor belts are suitable for medium, long - di - stance and heavy - load transportation of materials, widely used in mining, metallurgical industry and architectural industry, ports and etc
產品說明:尼龍是橡膠工業目前所用合成纖維中性能最好的品種之一，其結構經緯向均為錦綸纖維編織，用途最廣的品種，它最突出的優點是耐磨性好，強度高，耐疲勞性好，尼龍帆布做成輸送帶具有帶體薄，強力高，耐沖擊，成槽性好，層間粘合力大，屈撓性優異及使用壽命長等特點，適用於中長距離，較高載量，高速條件下輸送物料，廣泛用於礦山，冶金、建築、港口等部門。 -
According to the relationship between material fatigue performance curve and concerned parameters in fracture mechanics, the relationship between fatigue life and crack half length is obtained, that is equivalent crack length of fatigue life. the function relationships between these two aspects are constructed. the experiment data show that this method can express the same character of fatigue life of all kinds of materials and experiment data acquired from different materials can be used each other
通過材料力學疲勞性能曲線和斷裂力學之間有關參量間的演變關系，得到了疲勞壽命與裂紋半長的關系，即疲勞壽命的折算裂紋長度，建立了兩者之間的函數關系並利用這個函數關系說明了疲勞壽命的切線模量因子法，能反映各種材料疲勞壽命的共同變化規律，試驗數據可在不同材料之間互相參考使用，具有重大意義。 -
The strain - fatigue - life of materials is related to the plastic strain at the crack - tip
摘要材料的應變疲勞壽命與裂端的塑性應變有關。 -
The test method for axial loading constant - amplitude low - cycle fatigue of metallic materials
金屬材料軸向等幅低循環疲勞試驗方法 -
Based on the experiment and theory analysis, we give out the fatigue reliability curve of these two kinds of materials to provide bases for engineering
通過上述試驗研究與理論分析，給出wh530和wh610d2兩種鋼材的疲勞性能參數，並給出這兩種鋼材的疲勞可靠性曲線，為工程應用提供依據。
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