equation of stress 中文意思是什麼
equation of stress
解釋
應力均勻化-
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。 -
On the basis of modern blasting theories, the moving process of explosive stress field of multi - row and simultaneity is analyzed and the characteristics of stress field inspired by equivalent effect cell of globosity charge in cylindrical charge structure are considered. thus energy distributing equation of detonator explosion is established and the explosive energy utilizing rate factors are known. so the moving process model of the hole filling is constructed and the equation of calculating reasonable filling length is produced
本文在現代爆破理論的基礎上，分析了多排同段爆炸應力場的作用過程以及柱狀裝藥結構中等效單元球狀藥包所激發的應力場特點，建立了炸藥爆炸能量分佈方程，明確了影響爆炸能量利用率的因素，構建了炮孔充填物運動過程模型，得出計算合理充填長度方程。 -
Centered on the investigation on the evolvement of permeability as well as the coupling action between seepage and stress, the following work is carried out : 1. a further examination is given to classical biot seepage theory to discover the basic assumption to form the coupling seepage equation, and discuss the variety of coupling equations between seepage and stress and their adaptabilities. the physical meanings, adaptability, testing method of seepage parameters used in equation of continuum are analyzed based on the experimental investigations on complete relationship between stress, strain and permeability of rock and engineering test on permeability of rock at different depth
本文圍繞巖石破裂過程中滲透性的演化規律及其滲流-應力耦合作用機理這一課題，開展以下方面的研究工作: 1 .對經典biot滲流力學做了進一步的考察，揭示建立耦合滲流方程的主要假設，討論了各種滲流與應力耦合方程及數學模型的適用條件，通過巖石應力應變-滲透率全過程實驗研究和不同深度巖體滲透率工程試驗研究，分析了連續介質模型耦合滲流方程參數的物理意義、適用性、測試方法。 -
Based on the relaxation constitutive theory of viscosity - elasticity under non - constant temperature, the equation of thermal conduction in solids, and the finite element method, the non - stationary thermal stress in low carbon steel thick hollow sphere is calculated
摘要基於變溫粘彈性鬆弛型本構理論、熱傳導方程和有限元方法，對低破鋼厚壁球的非定常熱應力進行了分析。 -
With the material dynamic constitutive equation including damage and the effect of stain rate the predictable formula about ballistic limit velocity of fiber composite target. secondly based on the damage feature about ceramic / fiber composite target caused by impact load, analysis model about defense performance of ceramic / composite material target is formed and the predictable formula about ballistic limit velocity is also given. lastly using the reflection and projectile theory of stress wave the paper discusses the design of ceramic / composite material target, optimizes the design of double layer ceramic / composite targets, gains optimal coefficient under certain area density and discusses the variety relationship of area density and thickness with optimal coefficient u nder some ballistic limit velocity 3
首先，分析了纖維類正交鋪層復合靶板在沖擊載荷作用下的損傷破壞機理，結合包含損傷和應變率效應的材料動態本構方程，建立了纖維復合材料板彈道極限速度的預測公式；其次，根據陶瓷/纖維材料復合靶板在沖擊載荷下的破壞特點，建立了陶瓷/復合材料靶板抗彈性能分析模型，給出了彈道極限速度預測公式；最後，利用應力波反射和透射理論討論了陶瓷/復合材料靶板的設計問題，對雙層陶瓷復合靶板的優化設計進行了分析，給出了在一定面密度下的最佳優化系數，討論了一定彈道極限速度下的面密度和厚度隨優化系數的變化關系。 -
With the increase of volume fraction of sic particles, the flow stress of composites increases. from the compare of the experiment result and the analysis result, the constitute equation of mmcs is given. the penetration experimental equipments and technologies are also introduced
隨著sic顆粒的體積分數的增加，復合材料流動應力相應增加，並將實驗結果與理論計算結果進行了比較分析，得到反映顆粒增強金屬基復合材料性能的本構方程。 -
In this article, several existing main compensation methods for the term of dynamic stiffening are reviewed ; describing method of material coordinate is introduced on the basis of the principle theorem of mechanics of continuum ; and the dynamic equation of flexible body is derived from nonlinear green strain tensor and kichhoff stress tensor, which are based on initial configuration
本文評述了現有的幾種主要的動力剛化項補償方法，根據連續介質力學的基本原理，引入物質坐標的描述方法，採用基於初始位形的非線性green應變張量和kichhoff應力張量推導柔性體的動力學方程。 -
The static loading test for three group of testing piles of jiading power plant secend stage project are analyzed and studied in this thesis, and the practical applying of high - accurate data collector, technique of waterproof insulation and testing technique of burying in the body of pile are introduced also. the vertical and horizontal loading features of three group of piles of different kind and constructing technique in different earth layer at the pile point are analyzed and compared and summed up with basic integro - differential equation calculating the pile earth system load transmit, transforming principle of stress - deforming and pile body rating of burying electric measuring element. changing law of stress, and changing law of pile body shifting and bending for different testing piles under vertical and horizontal load are showed so that the loading features of soil layer and pile at testing spot, reliable design data for pile type and base for scientific construction technique are provided
本文僅就嘉定電廠二期工程中的三根試驗樁的靜載試驗進行了分析和研究，利用樁土體系荷載傳遞分析計算的基本微分方程及應力-應變轉換原理，結合預埋電測元件的樁身率定，對三組不同種類、不同施工工藝、不同持力層中的樁的豎直、水平承載特性進行了分析、比較和歸納，通過大量、全面的實測數據，經過整理、轉換和推演，揭示了不同試驗樁在豎直、水平荷載作用下的應力變化規律和樁身變位、撓曲變化規律，最終提供試驗場地土層和樁的承載特性，為該工程合理設計樁型提供了可靠的設計參數，為確定科學的施工工藝提供了有力的依據。 -
In this paper, a more practical strength criterion equation of concrete in biaxial stress strength is taken into account. the result from this criterion equation agree well with the various test data and empirical curves and hence the equation can be put into the use of practical calculation easily
對混凝土在壓-壓受力破壞時的強度準則進行了研究，在分析中因二軸應力強度不可忽略，最終推導了一個簡單的、計及二軸應力強度影響的強度準則公式，該公式與諸多可資利用的試驗成果吻合較好，可較好地應用於實際計算之中。 -
Abstract : the wave equation, continuous equation for tower structure and the method of characteristic line, are derived in this paper, and variation of structure modulus of elasticity with strain and vibration frequency being considered, state of stress on the structure affected by earthquake wave is analyzed
文摘:推導了高聳結構（桿件）波傳播運動方程、連續方程和特徵線求解方法.並考慮結構彈性模量隨應變及振動頻率的變化，對地震波作用下結構的受力狀況進行了分析 -
The 16 - node degenerated iso - parametric element is proposed for the analysis of raft foundation with mid - thick plate. the stiffness matrix of single pile among the pile group can be founded assuming the total contact between the plate and the foundation. and the results of stress and deformation of plate, the force on pile and the settlement of pile bottom can be solved after the finite element disperse for the plate and the establishment of balance equation of pile - raft interaction
在引入16節點退化等參元的中厚板筏板分析模型的基礎了，假定筏板與地基間完全接觸，建立了群樁中單樁樁身剛度矩陣，繼而對筏板進行有限元離散得到樁筏共同作用的平衡方程，從而求解筏板內力、撓度、樁頂反力、樁端沉降等一系列結果。 -
4. based on the theory - character parameter, this paper presents the theory equation for stress - stain complete curves of the rpc filled steel tube, it is founded that computed curves are in good agreement with the tested one, and it can be applied for the all course analysis of the rpc filled steel tube
4 、基於上述圓鋼管rpc軸壓柱的理論特徵參數，推導建立了圓鋼管rpc軸壓柱應力應變全曲線理論方程，該方程理論曲線與試驗曲線相當吻合，可用於圓鋼管rpc構件的全過程分析。 -
The paper studied controlling rotor vibration with the super - elasticity of sma and sfd, set up the new equation of sys tern vibration according to the stress - strain curve of sma in super - elasticity state, used the nonlinear theory and the dynamic stability theory to study the vibration of rotor controlled by sma, discussed the stability condition of the system, obtained the relationship of system parameters when bifurcation was appeared, supposed a method that improves the stability of rotor system and restrains vibration amplitude though changing parameters, and finally validated the effect of restraining vibration of the improved system through emulation
摘要研究利用形狀記憶合金的超彈性和擠壓油膜阻尼器控制轉子振動，利用形狀記憶合金在超彈性狀態下的應力應變曲線，建立了新的系統振動方程，運用非線性理論和運動穩定性理論研究轉子在形狀記憶合金控制下的振動狀態，討論了系統的穩定性條件，獲得系統發生分岔時系統參數之間的關系；並提出了通過改變參數來提高系統穩定性和抑制振幅的方法，最後通過模擬驗證了改進后的系統振動抑制效果。 -
This paper introduces the limit - destruction theory to study and analyze the function - mechanism of sand cushion in the collective function of the piles and the earth, and then brings forward the regulating - equation of the stress ratio between the up - pile - soil and the top of pile concerning the sand cushion. its final calculating result basically tallies with the practical function conditions. this provides an alternative approach to the study of sand cushion
4在復合地基樁、土共同作用中，墊層的作用和機理，本文引入極限破壞理論對砂墊層作用機理進行分析研究，提出砂墊層的樁頂樁土應力比協調方程，其計算結果與實際作用情況較吻合，為砂墊層研究提供了一種思路。 -
With the method of the lie group transformation, the symmetry of the equation governing one dimensional finite strain consolidation is discussed and, from the point of the symmetry, the feasibility to obtain the analytical solution of these nonlinear partial differential equations is discussed. where - after exact or approximate analytical solutions focused on different consolidation problems are obtained, these including : under some assumptions of relations of the void ratio with coefficient of permeability and effective stress, the method of lie group transformation is applied to solve the non - linear partial differential equation of large strain consolidation of homogenous saturated clay soil in semi - infinite domain with the consideration of the material and geometrical nonlinearity during consolidation procession. the implicit exact solution without considering the effect of self - weight of soil is obtained
運用lie群變換方法討論了一維大應變非線性固結方程的對稱性，以及在該對稱性的意義下求解這類非線性偏微分方程解析解答的可能性，並就大應變非線性固結問題的多種情況求得了其完整的或者近似的解析解答，具體包括：基於有效應力與孔隙比以及滲透系數與孔隙比之間的關系的一些假定，採用李群變換求解考慮材料非線性和幾何非線性的半無限均質土體大變形固結非線性偏微分方程，得到了一個不考慮自重固結的完全解析解。 -
As the main method of measurement in the tests, some strain measuring points are arranged on the reinforced steel bars of the anchor bearing body. the changes of strain with different loading levels at their locations have been measured, through which range of influence and distribution of strain with loading in grout can be investigated, and corresponding distributions of axial force and bond stress are calculated according to hooke ' s law. making use of nonlinear curve fitting, distribution equation of bond stress of the fixed unit anchor length is achieved
試驗測試手段通過在錨索承載體上布設應變測點，觀測錨索在不同的荷載級別下的應變變化情況，對不同荷載級別下，單元錨索注漿體內應變的影響范圍及分佈規律展開分析，依據虎克定律計算出了其軸力與粘結應力的分佈；並對測試結果進行了擬合，得出了錨固段粘結應力分佈的擬合方程。 -
Based on the damage evolution formation depicted by kachanov of brittle materials in unitary stress state, in this dissertation, the constitutive equation of nonlinear damage material is given, macroscopically, on the assumption that damage variable is exponential relation to strain, d = ( gy i k ) ", where g is the shear module, k is the damage module and the y is the effective strain, d is damage variable and n is hardening exponent
在kachanov描述的一維應力狀態下的脆性材料的損傷演化模型的基礎上，文中給出非線性損傷材料的本構方程，唯象地假設損傷變量與應變成冪次關系， d ~ * = （ g / k ） ~ n ，其中g為剪切模量， k為損傷模量，為有效應變因子， d為損傷變量， n為硬化指數。 -
But thermal stress ca n ' t be calculated without damage. and then it provided in this article the equation of the elementary damage, material intensity, elasticity modulus and temperature evolvement of rupture energy. 6
微裂縫的形成與發展仍然是由溫度應力造成的，但此溫度應力應是考慮損傷行為的應力，據此，文中導出了反映初始損傷、材料強度、彈性模量以及斷裂能的溫度損傷演變方程。 -
Based on unified strength theory, the boundary line equation of surrounding rock mass plastic zone under non - uniform stress field was deduced, and it can be used to pre - estimate the dimensions and shapes of underground tunnel ' s plastic zone with different coefficients of horizontal pressure
摘要基於統一強度理論，推導出非均勻應力場的巷道圍巖塑性區邊界線方程式，可用於預測不同側壓系數時地下深埋隧洞的塑性區大小及形狀。 -
In this paper, the equilibrium equation of liquid bulge forming small tangential round corner is deduced for the complicated shape tube - type blank, the function equation between forming stress parameters are and the small corner are obtained ; the forming mechanism of the small tangential corner is studied, the matching relation between liquid bulging pressure and axial thrust is given, the optimal liquid bulging force parameters are determined
摘要本文推導出復雜形狀管類件復合液壓脹形時環向小圓角成形的平衡方程，得出了成形應力與環向圓角半徑的解析關系；研究了環向小圓角成形機理，確定了液體脹形壓力與軸向推力的匹配關系以及最佳的成形力參量。
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