塑性勢 的英文怎麼說

中文拼音 [sùxìngshì]
塑性勢 英文
plastic potential
  • 塑 : 動詞（塑造） model; mould
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 勢 : 名詞1 （勢力） power; force; influence 2 （一切事物力量表現出來的趨向） momentum; tendency 3 （自...
  1. From the feature of the force and deformation of the tpih, 5 different elements are used to mesh the different zones of the tube, which are structural beam 3d elastic 4, structural pipe plastic straight 20, structural pipe elastic elbow 18, structural shell elastic 4 node 63 and contact 3d pt - to - surf 49 ; the contact problem is assumed to be flexible - to - flexible ; the temperature field is assumed to be body load. a mechanical model corresponding to reality has been established for numerical simulation. based on the above, the 3 - d fem numerical simulation of tpih has been carried out by using the ansys program

    針對加熱彎管過程的受力和變形特點，採用三維梁單元、三維塑性直管單元、三維彈性曲管單元、三維殼單元與三維點對面接觸單元等5種不同的單元分別對管毛坯不同區域進行劃分，並對接觸單元採用柔體-柔體的處理方法，將溫度場作為體載荷處理，建立了符合實際的加熱彎管問題數值模擬力學模型：在此基礎上，應用商用軟體ansys對加熱彎管過程進行三維有限元模擬與研究，獲得了成形時推力、彎矩、支撐力大小及其變化趨勢。
  2. The thesis introduces the general engine development, domestic and foreign, analyses the present situation and future development trend of environment friendly lubricants, studies on theories of flow activation and low - temperature jellification which well illustrate the low - temperature property of environment friendly lubricants, researches the low - temperature flowability of environment friendly lubricants in perspective of molecule, then theoretically synthesizes plastic and flow principles of environment friendly lubricants and finally reaches a ground to explain low - temperature properties of environment friendly lubricants

    本文論述了國內外內燃機油的發展概況，分析了環境兼容潤滑油的發展現狀及趨勢，研究了可以用於解釋環境兼容潤滑油低溫性能的流動活化理論和低溫成膠理論，從分子的角度研究了環境兼容潤滑油低溫流變特性，對潤滑油的粘塑性流變機理進行了理論推導，找出了解釋環境兼容潤滑油低溫流變特性的根據。
  3. Using the complex potential method in the plane theory of elasticity of an anisotropic body, a series solution to the stress field of a finite plate containing multiple cracks subjected to arbitrary loads is obtained by means of the faber series expansion, and the stress intensity factors at the crack tips are calculated based on the theories of fracture mechanics. equivalence yield stress is introduced in order to consider the effects of the plastic zones, with which the strip yield criteria is developed in the article so that the effects of structural size and the crack interactions on the stress distribution can be considered accurately. the effects of plate size, crack size and crack distributions on the stress intensity factors as well as the residual strength of the plate are studied detailedly

    採用各向異性體平面彈性理論中的復勢方法，以faber級數為工具，得到了含多裂紋有限大板在任意載荷作用下應力場的級數解，並應用斷裂力學方法確定裂紋尖端的應力強度因子；引入當量屈服應力考慮裂尖塑性區的影響，提出基於帶屈服準則的剩餘強度分析模型，能夠充分考慮結構尺寸和裂紋之間相互作用對應力場的影響；通過數值計算詳細討論了結構尺寸和裂紋之間位置關系對應力強度因子和結構剩餘強度的影響規律，得到了一系列對工程應用具有實用價值的結論。
  4. Point to above problems, under the financial support of the national natural science foundation ( exploration of high tech and new concept and new conceive ), the excellent young teachers program of ministry of education and national excellent doctoral dissertation special foundation, the static and dynamic real - time computation of elasticity - plastic mechanics, solving method of fuzzy finite element and other problems were studied in this paper. and some achievement was gained as following : ( 1 ) based on the positive definiteness of system stiffness matrix of finite element that was modified and the form of potential energy function of elastic body, the linear system of saturation mode ( lssm ) was introduced into the neural computation of finite element, by which the no - error solving of finite element neural net computation was realized in theory

    針對上述問題，在國家自然科學基金（高技術新概念新構思探索） 、教育部優秀青年教師資助計劃、高等學校全國100篇優秀博士學位論文作者專項基金等的資助下，本文對彈塑性力學問題的動靜態的實時計算、模糊有限元的求解方法等問題進行了系統和深入的研究，取得了以下成果： （ 1 ）根據有限元總剛矩陣經修正後具有正定性的特點以及彈性體勢能函數的具體形式，將飽和模式的線性系統（簡稱為lssm系統）引入到有限元的神經網路計算中，在理論上實現了有限元神經網路計算的無誤差求解。
  5. In the paper the effects of the made parameters, the main materials and environmental conditions on plastic shrinkage cracking were investigated. it can be concluded as following : 1 ) there was a critical w / c ratio of maximum plastic shrinkage cracking between lower and higher w / c ratio of concrete mixtures made with the same cement content per cubic meter, concretes with lower or higher w / c ratio being less prone to plastic shrinkage cracking and the w / c critical ratio critical of maximum plastic shrinkage cracking being about 0. 5

    本文研究了配製參數、主要原材料以及環境條件對新拌混凝土塑性收縮裂縫的影響，結果表明： 1 ）單方混凝土水泥用量一定時，較低水灰比和較高水灰比對應的混凝土拌合物不易開裂，而中間某一臨界水灰比對應的混凝土拌合物開裂較嚴重，這一臨界水灰比為0 . 5 ；單方混凝土水用量或水泥漿量一定時，混凝土拌合物的塑性開裂趨勢與上述情況相似，但臨界水灰比分別為0 . 45 - 0 . 4和0 . 4 。
  6. However, due to the complexity of soil, the models that based on the traditional plastic mechanics have still much limitation when used to express the soil mechanical behavior, and it ' s very disordered that how many yield surface should be select and how to select flow principle

    但是由於土體材料的復雜性，目前基於傳統塑性位勢理論提出的本構模型在反映土體的力學特性上還存在很大的局限性，且在選用屈服面的數目及如何選用流動法則上也出現了理論上的混亂。
  7. This kind of connection has the combined advantage of shop welding and on - site high - strength bolting, which should have a better energy dissaption and plastic rotation capacity

    這種連接具有工廠焊接，工地高強螺栓拼接的綜合優勢，具有較好的耗能能力、塑性轉動能力等優點。
  8. Sketch plate takes great advantage of concrete plasticity, so this type of bridge often wins out in plane phase

    摘要異形連續板由於其充分發揮了混凝土結構可塑性強的特點，在景觀要求高的方案比選階段具有很大的優勢，往往能夠成為中選方案。
  9. After pretorsion the successor tensile yield limit and strength limit both improved very highly, but the trend of the increase of the strength limit was suspended till the pretorsional capacity reached 17, when the pretorsional capacity was greater than17 ( prestrain value was 81. 19 % of total strain ), the successor strength limit rapid failed and approached the yield limit. this illustrate the a3 steel specimen translate from plasticity into friability after pretorsion strengthen. when the specimen was operated by tension - torsion action, the yield limit had very large improved, but the strength limit changed very little. furthermore, the trend of the increase of the strength limit was suspended till the pretension capacity reached 0. 25 ( prestrain value was 66. 93 % of total strain )

    A3鋼試件在預扭轉后，后繼拉伸屈服極限和強度極限均有很大提高，但強度極限的增大趨勢到預扭轉量為17為止，預扭轉量大於17 （預應變值為總應變的81 . 19 ）后強度極限迅速下降，與其屈服極限接近，這說明a3鋼試件經預扭轉強化后逐漸由塑性轉化為脆性。該預應變值為a3鋼試件的韌脆轉變點。 a3鋼試件在拉伸-扭轉作用下，屈服極限有很大提高，但強度極限沒有多大改變，而且，屈服極限的增大趨勢到預拉伸量為0 . 25應變（預應變量為總應變量的66 . 93 ）后就不再增加。
  10. After the batch tests, geotechnical characteristics of cation contaminated clay are studied. it is found that adsorbed cation can induce significant changes in the mechanical properties of clay. : to determine diffusion parameters of cations through clay, some laboratory tests are carried, out via horizontal and vertical diffusion tests

    在粘土吸附性的基礎上，對粘土吸附污染物離子后的基本土工特性（塑性、滲透性、強度等）進行試驗研究，總結了粘性土在滲濾液的長期作用下其土工特性的變化趨勢。
  11. By using the constitutive model, we can establish the creep and consolidation model, the variation trend of super pore water pressure and the development of viscoelastic settlement and viscoplastic settlement. at last forecasting the long term creep settlement in the metallurgy industrial estate at the backward position of haihe river in tianjin

    並利用此本構關系建立蠕變與固結模型，計算出土層在大面積填土作用下超靜水壓力發展趨勢，同時得出其粘彈性、粘塑性沉降發展趨勢，最後對冶金工業區軟土長期蠕變沉降作出預測。
  12. This paper introduces all kinds of calculation methods of settlement and the popular research theory at present, expresses the rheology theory and its developing trend in detail. based on the rheology theory, the theory of linear - visco - elastic - plastic model is put forward to forecast the long term creep settlement of soft soil in the metallurgy industrial region at the backward position of haihe river in tianjin

    本文詳細介紹了國內外關于沉降計算的研究現狀，以及當今流行的研究理論，著重介紹了流變理論的研究現狀及其發展趨勢，並在此基礎上提出了用線性粘彈塑性模型理論來預測天津市海河下遊冶金工業區軟土長期蠕變。
  13. This paper uses the method of tensor to proof the tenable condition of generalized plastic potential, discuss the mathematical essential of the associated and disassociated flow rule and the relation of the yield surface and plastic potential surface, reason the expression of plastic factor strictly. debate the limitation on drucker ' s postulate. subsequently, this paper gives the mathematical basis of constitutive theory involving the rotation of principal stress axes. so it is proved that the mathematical and mechanical foundation of the generalized plastic mechanic

    本文運用張量的方法論證了廣義塑性位勢理論成立的充要條件，討論了關聯與非關聯流到法則的數學實質，屈服面與塑性勢面的關系，嚴密推導了塑性因子的表達式，討論了drucker公設的局限性，並給出了考慮主應力軸旋轉時土體本構模型理論的數學依據，系統的論證了廣義塑性力學成立的數學力學基礎。
  14. Supposed the two nonreversible deformations both obey the drucker law, the plastic loading function was established based on experimental data and the plastic work was used as hardening parameter supposed loess damage is mostly due to shear and the damage potential function has the same form of the equivalent plastic strain line in the plastic part, the damage potential function was gained by fitting the test data

    假定兩類不可逆變形都服從drucker公設，根據試驗數據確定以塑性功為硬化參數的塑性加載函數。認為損傷主要由於剪切產生，假定損傷勢函數與塑性部分的塑性剪應變等值線具有相同的形式，通過試驗數據擬合得到損傷勢函數，然後根據損傷理論推導建立q1黃土的彈塑性損傷本構模型。
  15. Point to the limitation of existing method, the neural computation method of finite element of elasticity - plastic mechanics was studied on the base of variational principle of the second order minimal potential energy in plastic theory. the neural network solving method of elasticity - plastic mechanics based on variational principle of the second order minimal potential energy was presented, and the neural network computation model of finite element of plastic mechanics was given

    針對已有方法的局限性，以塑性理論中的二階段最小勢能變分原理為基礎，對彈塑性力學問題的神經網路有限元計算方法進行了研究，提出了基於二階段最小勢能變分原理的彈塑性力學問題的神經網路求解方法，建立了塑性力學問題的有限元神經網路計算模型。
  16. This paper includes the several contents as followed : 1 ) introducing concepts of concrete superposed structure, summarizing the study condition of it at home and abroad, pointing out the research trend, nailing down the main research contents and laying a course. 2 ) the character of the concrete is introduced first. differences between strength of concrete studying and strength of materiak elasticity or plasticity are distinguished

    本文主要研究了以下幾方面內容： 1 ）介紹了混凝土疊合結構的相關概念，綜合評述了混凝土疊合結構在國內外的研究狀況，指出混凝土疊合結構的研究發展趨勢，制定了本課題的研究內容和技術路線； 2 ）首先介紹了混凝土的力學構成，並討論了本文的混凝土力學與傳統力學（材料力學、彈性力學和塑性力學）的區別，得出適用於混凝土受力性能分析的三個基本方程，並提出受力分析的方法。
  17. Based on the discussion, this paper expatiated the essential principle of the plastic mechanics in rocks include the material yield criterion, loading - unloading criterion, plastic potential theory, hardening rules, and application in geotechnical engineering

    隨后在這一部分中闡述了巖土塑性力學的基本原理，包括巖土類材料的屈服準則、加卸載準則、塑性勢理論、以及加載硬化規律等原理及其在巖土工程中的應用。
  18. After the streamlines and potential lines were plotted, the potential line of the hardening and softening parts were taken as the same ellipse form. in order to establish the softening elasto - plastic model of qi loess, the plastic potential function used is in a ellipse form and the plastic work function was used as its hardening parameter

    作流線和勢線，揭示了勢線的硬化部分和軟化部分具有相同的橢圓曲線形式，採用橢圓來表示塑性勢函數，以求待定塑性功函數為硬化參數的方法建立了q1黃土的軟化型彈塑性本構模型。
  19. Meanwile, the springback principle of minimum potential energy is applied to calculate the springback deformation of a contilever beam occurring elasto - plastic deformation

    同時，應用回彈最小勢能原理于彈塑性變形懸臂梁的回彈變形計算。
  20. Synthetic maro - fiber is a new type reinforcement material that appeared in the last of 20th century. when compared to steel fiber and synthetic micro - fiber, the synthetic macro - fiber offers a large number of advantages : ( 1 ) light ; ( 2 ) evenly distributed ; ( 3 ) erosion resistance ; ( 4 ) obviously improves the impact resistance, flexural toughness, fatigue and seismic properties ; ( 5 ) resistance for early crack ; ( 6 ) prominent advantage in shotcrete

    粗合成纖維興起於20世紀末，它是一種新型的增強增韌材料，相對于鋼纖維、細合成纖維，它具有明顯的競爭優勢: （ 1 ）質輕; （ 2 ）無腐蝕; （ 3 ）易於均勻分散; （ 4 ）顯著提高混凝土的韌性、抗沖擊、抗疲勞、抗震防爆性能; （ 5 ）可以提高塑性混凝土的早期抗裂性能; （ 6 ）在噴射混凝土中具有顯著的優勢。
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