equivalent stress 中文意思是什麼

equivalent stress 解釋
當量應力
  • equivalent : adj 1 相當的，相同的，同等的。2 【化學】等價的，當量的；【數學】等價的；等量的；等勢的；【物理學...
  • stress : n 1 壓力，壓迫，緊迫，緊張。2 【語音】重音；重讀；【詩】揚音；語勢，著重點。3 重要（性），重點，...
  1. Fist of all, on the basis of the research of agone boffins, this author investigates the interaction mechanism of bolts and rock, and introduces the elastic ? lastic analytical resolution which is consist of the liner structure, the equivalent reinforced wall rock and the original wall rock in the simple loading from the equivalent well - proportioned view ; this solution is very important meaning for the engineering design. on the basis of coulomb friction model, the author introduces the finite element equation of the contact problem in order to provide the academic foundation for the application of msc. marc. finally, combining the engineering practice of the non - linear analysis of shield tunnel through yellow river of the south - north water transfer and using the model of friction, the author researched the evolution law of stress and displacement field in the structure of grouted rock bolts, and analyzed the effect to the stress and deformation of surrounding rock mass due to anchor supports

    首先，在前人研究成果的基礎上，對錨桿與圍巖的相互作用機理進行研究，利用全長錨固錨桿的中性點理論，從等效均化的角度來考慮錨桿對圍巖的加固作用，並推導了在簡單荷載作用下，含有襯砌、等效加固后的圍巖、原始圍巖三者的彈塑性解析解，對工程設計有著重要的參考意義；在數值模擬方面，以考慮錨固圍巖滿足規則化庫侖摩擦模型為基礎，利用虛功原理推導了接觸問題的有限元方程的計算格式，為開發運用大型商用有限元軟體msc . marc提供了理論根據，也形成了本文的理論基礎：最後，論文以南水北調東線穿黃隧洞穩定性分析項目為工程實例，利用本文所述的接觸問題的摩擦模型理論，對錨桿支護結構的應力場、位移場的變化規律進行了研究，分析了加錨支護對隧洞圍巖應力、變形的影響。
  2. The calculation modes of the coefficient of shrinkage and creep of the bulgy core concrete in steel tube are discussed. based on a few reasonable hypotheses and the stress - strain relation of concrete acquired by the " adjusting valid modulus depending on load time " method, a compact formula is reasoned out, which is applied to calculate the equivalent elastic modulus of the bulgy core concrete considering the affection of shrinkage and creep. so, the analysis of the affection on cfst arch bridge by shrinkage and creep can be progressed by pole - girder fem, further more, the analysis precision is quite high

    本文還對核心膨脹混凝土特殊的收縮、徐變系數計算模式展開了探討，在合理的假設前提下，採用「齡期調整的有效模量法」得到的混凝土的本構關系，推導出鋼管內核心混凝土在考慮徐變影響后的等效彈性模量計算公式，並以此為基礎採用桿系有限元方法來對鋼管混凝土拱橋進行較高精度的收縮徐變分析。
  3. In this analysis procedure, the mean stress is accounted for by obtaining the equivalent stress derived from goodman formula or not and the difference between the two cases are discussed

    由於在譜分析方法中考慮到了由波高、特徵周期及浪向確定的不同海況，所以本文也分析了各海況對疲勞壽命的影響。
  4. Results : with the loss of the alveolar height, the maximum equivalent stress and the principle stress of the upper central incisor periodontium increased

    結果：隨著牙槽骨高度的降低，上中切牙牙周膜最大等效應力和主應力逐漸增大。
  5. ( 3 ) the equivalent stress, which is from the coefficients for the spectrum - loads and miner linear accumulated damage rule, an approach for material probabilistic fatigue strength for spectrum loads is suggested. this approach are established by the composed of p - c - s - n curves for extreme maximum model

    （ 3 ）根據譜載荷系數和miner線性累積損傷準則得到的譜載荷下的當量應力的關系，與極大值模型的p - c - s - n曲線相結合，提出了譜載荷下材料概率疲勞強度的表達式。
  6. Statistic analysis on fatigue load effect and equivalent stress range of steel crane structures in service is carried out. the stress range distribution in whole life is deduced by the spot measurement little sample stress - time process. meanwhile the statistic analysis on the fatigue resistance process is conducted, according to fatigue data of all kinds of structural joints in domestic and overseas, which is foundation with, establish the fatigue reliability model

    2 、在大量調查的基礎上，對吊車梁所承受的疲勞荷載效應與等效等幅應力進行了統計分析，同時根據國內外有關各構造細節的疲勞資料對疲勞抗力參數進行了統計分析，為建立疲勞動態可靠性分析模式奠定基礎。
  7. The author use large - scale finite element software ansys as analyzing tool, use finite element method to comprehensively analyze the oldslabbing - web main girder and the new - corrugated - web main girder. through the analyzing, know the equivalent stress of new web is reduce 57 % than old web

    作者以大型有限元軟體ansys為工具，用有限元方法進行了新型腹板與原來的平直腹板的綜合比較分析，得出了波形腹板結構在同等條件下，等效應力比原腹板減少14左右。
  8. The bottom roller and sub - bottom roller of hcr is calculated about its equivalent stress, contact stress and the distributing of pulling - stress along the inside track of hcr. also, effects of hollowness and pinch fit are analyzed on bearing stress and rated load

    主要計算預負荷空心圓柱滾子軸承的最底部滾子和次底部滾子的等效應力、接觸應力和滾子內圈拉應力的分佈情況，分析滾子空心度和過盈量對軸承應力和額定載荷的影響。
  9. The buckling of a plate mostly occurs in elastic regime with high strength steel adopted widely, and the plate reaches ultimate strength due to losing capacity when equivalent stress where maximal in - plane compressive stress appears arrives at yield in post - buckling phase

    隨著高強度鋼的廣泛應用，板格屈曲大部分發生在彈性范圍內，在後屈曲階段當板格最大面內壓縮應力處的等效應力達到屈服極限時，板格迅速卸載，此時板格達到極限強度。
  10. Using the failure criterion of maximum equivalent stress and the method of element birth and death, the space distribution features of small earthquakes ( micro cracks in rock ) before a strong earthquake are simulated

    利用最高應力破裂準則、釋放破裂單元剛度生與死的方法，模擬強震前巖石的破裂和小震的空間分佈特徵。
  11. In the paper, the method of equivalent stress is adopted to confirm the outside force of the truss model, and the factor of the angle of inclined column is considered. a design method of the wall was suggested

    採用等效應力法確定了桁架模型的外力，即薄壁柱傳來的荷載，其中考慮了斜柱的傾角以及反映薄壁柱與轉換梁共同作用的薄壁柱端部塑性發展系數的影響。
  12. A time - variant reliability formulation is presented in this paper to account for the effects of fatigue, corrosion and maintenance actions on the first yield reliability of midship section modulus. a probabilistic model for long - term distribution of wave - induced fatigue stress range is established. for the purpose of obtaining the performance of structure that stands random fatigue load, the concept of stress parameter and equivalent stress range are introduced

    船舶在由波浪彎矩引起的交變應力作用下，船體構件焊接點處的微小裂紋逐漸擴展；同時，隨著船齡的增加，眾多結構構件遭受腐蝕的作用；從而使船體梁剖面模數減小，船體梁承載能力衰減，船舶結構的安全性將受到相當大的影響。
  13. Based on the constitutive relationship coupled microstructure evolution, 3d - fe simulation of isothermal forging process of tc6 titanium alloy disc is performed dealing with different deformation temperature, punch velocity and shear factor of friction, effect of process parameters on equivalent strain, equivalent stress and grain size is calculated, and load - displacement curve is calculated

    本文基於微觀組織演變的本構關系模型，對不同變形溫度、凸模速度和摩擦條件下鈦合金盤的等溫鍛造過程進行了三維數值模擬，研究了變形工藝參數對等效應變、等效應力和晶粒尺寸的影響，計算了各變形條件下的位移?載荷曲線。
  14. General rules were validated and a new rule was discovered : i. e. the shape 0f these two stress fields are same, the equivalent stress of the round corner in the bottom reached its maximum at the first phase, the equivalent stress of the edge of hole reached its maximum at the third phase, the equivalent stress of flanging with cone - shaped punch descend more than that with column - shaped punch at the fourth phase i. e. the phase of deformation completed

    驗證了一般規律，也發現了新規律，即兩者的應力場形狀相同，底部圓角處等效應力在變形第1階段最大，孔口邊緣處等效應力最大出現在變形第3階段，第4階段（變形終了時）錐形沖頭翻邊的等效應力比柱形沖頭翻邊時下降更大。
  15. Three - dimensional model of t - branch tube compound bulging has been established by using advanced explicit finite element codes ansys / ls - dyna with the research of distribution law of equivalent stress and plastic strain

    摘要採用顯示動力分析軟體ansys / ls - dyna建立復合脹形三維有限元模型，深入研究了三通管液壓脹形過程中應力應變分佈規律，系統比較了軸向壓縮脹形和復合脹形過程中應力應變變化規律、脹形支管高度、壁厚分佈的差異。
  16. Prof, zhu bofang and prof. fu zuoxin present equivalent stress method, which provides an effective way for practical application of finite element method. but how to solve dam body ' s equivalent stress reasonably is still a problem

    朱伯芳院士、傅作新教授提出的等效應力法概念為有限元法實用化提供了一條有效的途徑，但如何合理求解壩體等效應力仍存在一定的問題。
  17. Two models for dynamic damage evolution of materials in general anisotropic damage state were presented ; the first one was based on power function of the effective equivalent stress and the second on the damage strain energy release rate

    研究了工程材料在動力載荷下損傷演化的計算模型，提出了一般材料在各向異性損傷狀態下的兩種動力損傷模型。第一種以有效應力的等效值的冪函數為基礎，第二種以損傷應變能釋放率為基礎。
  18. Through using abaqus software, a numerical simulation of equivalent stress field of flanging deformation process with cone - shaped punch was carried out, and compared with simulation of flanging deformation with column - shaped punch

    摘要利用abaqus商用軟體，對錐形沖頭翻邊變形過程的等效應力場進行了數值模擬，並與柱形沖頭的翻邊變形模擬進行了對比。
  19. Some examples prove that the result is stable and the value of equivalent stress is less affected by mesh size. this method provides a reliable way for application of finite element method in high arch dam ' s design

    算例結果表明，該方法的計算結果比較穩定，等效應力值受網格尺寸的影響較小，為有限單元法在拱壩設計中的應用提供了一條可靠的途徑。
  20. By analyzing the indoor flexural fatigue tests of small beams, the paper concludes that the fatigue life of lean concrete follows the two - parameter weibull distribution, and establishes two types of fatigue equation under different stress level and equivalent stress level

    通過分析室內小梁彎拉疲勞試驗結果，得出貧混凝土的疲勞壽命服從雙參數威布爾分佈，據此建立了不同應力水平和等效應力水平下兩種形式的疲勞方程。
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