stress and strain fields 中文意思是什麼
stress and strain fields
解釋
應力和應變場-
With the adoption of the rate - sensitive constitutive relationship, it is asymptotically investigated the propagating tip fields of antiplane mode iii crack under the condition of incompressibility, and the dynamics equations are obtained separately governing the stress and strain fields at the crack - tip
採用這種率敏感型本構關系，本文對不可壓縮條件下反平面型擴展裂紋的尖端場進行了漸近分析，分別求得了其裂紋尖端應力和應變場的動力學控制方程。 -
During the temperature fields, the results indicate that the processing parameters such as the extrusion velocity, casting temperature, perform preheating temperature, die preheating temperature and so on are important for the temperature fields besides the dwell time. they are must be in concordance each other to the deforming zone is in the quasi - solid state, and the stable semi - solid extrusion is implemented. during the deforming fields, the hyperbolic sine thermo - rigid - viscoplastic fem model is selected according to the forming feature of the process, and the variations of the stress - strain fields are studied
在溫度場的模擬中，模擬結果表明，保壓時間是影響製件成形質量的關鍵因素之一，擠壓速度、液態金屬澆注溫度、預制體預熱溫度和模具預熱溫度等工藝參數對溫度場的影響也很大，需進行參數之間的協調，只有當變形區內部始終維持準固態時，才能實現穩定的液-固擠壓成形過程；在變形場的模擬中，根據液態浸滲擠壓的成形特徵，選用了雙曲正弦剛-粘塑性有限元計算模型，研究了變形過程中應力應變場的變化規律，研究了模角對變形和金屬流動的影響及變形力的變化過程和其影響因素。 -
Stress and strain analysis of determinate structures under different temperature fields
靜定結構在不同溫度場中的應力應變分析 -
The hybrid element method is applied to get bonded materials " characteristic equations and the stress and strain fields near the tip of the interface of bonded materials
同時本文應用雜交元方法確定結合材料特徵根，求得界面端附近的應力場和位移場。 -
Through stress, displacement straight - line picture and the strain ratio of two supports before it cracks, the stress and displacement fields of symmetric and asymmetric samples under static conditions are observed
通過裂紋啟裂前的應力、位移等直線圖及兩個支座的應變之比，觀察靜態條件下對稱試件及非對稱試件裂紋面兩端的應力場和位移場。 -
The transient heat transfer between the drum wall and cooling water rising up with steady rate was simulated numerically using fem, and the time history of the stress and strain fields were also acquired with indirect coupling method
摘要利用有限元法模擬了焦炭塔進水冷焦階段恆速上升的介質與塔壁的動態傳熱過程，並用間接耦合法求得了應力、應變場的變化過程。 -
The displacement vectors caused by the tide - generating force are different for different points inside the earth, hence tidal strain and stress fields are formed inside the earth
地球內部各個質點在月亮和太陽的起潮力作用下產生的位移矢量不同，在地球內部形成固體潮應變場和應力場。 -
Firstly, the displacement, stress, strain fields and the working state of dam body and foundation are evaluated by fem. by overloading the upstream water level and reducing rock strength parameters, the failure process of dam foundation is simulated and the failure mode and paths are determined. the results show that when overload method is used, damaged area develops from up - stream to down stream with failure front stays near the interface between dam body and bedrock
首先採用非線性有限單元法對壩體及壩基在不同荷載工況下的變位、應力應變狀態展開分析，評價各工況下壩基的運行狀態，而後採用超載法和綜合法對大壩穩定性進行分析，模擬壩基的漸進性破壞過程，追蹤巖體破壞狀態的發展演變過程，從而得到壩基在超載和強度下降過程中的破壞模式和破壞發展路徑。 -
In this paper, we reviewed the history of the studies about the mechanical properties on arterial walls, and introduced the experimental studies about the arterial walls, which included the structure of the arterial wall, experimental model, theoretical models of thin and thick wall cylinders, method of stress and strain analysis and the difference between dynamic and static experiments, and discussed the fields of tissue engineering, remodeling of the artery and the relation between stress and growth
本文首先對動脈壁力學性質研究的歷史做了回顧，其中著重介紹了動脈壁力學性質的實驗研究。包括動脈壁的結構、實驗模型的研究、薄壁筒和厚壁筒理論模型的研究、應力和應變分析方法以及動態和靜態實驗的區別，並對當前研究的熱點問題，如組織工程、動脈重建和應力與生長的關系作了探討。 -
The postprocessor analyze the distributing characteristic and the changing orders of stresses and strains, as well as maximal stress fields and maximal strain fields
利用后處理程序分析了鉚釘塑性變形的應力、應變的變化規律，單項最大應力區和單項最大應變區的分佈特點。 -
The stress and strain fields around dislocations are covered in some detail, and the strain energy of the defects as well
對於差排附近的應力及應變場，以及這些缺陷的應變能將有詳細的說明。 -
In order to fully develop the theory of squeezed branch piles, in particular, the justification of its superior performance in terms of the bearing capacity and sinking displacement, we have derived the analytical formulas of the axial load and the strain at arbitrary depth ; based on existing static loading test results and research on belled pile, together with the analysis of on - site testing data, we have applied the expand theory on sphere holes to the computation of radial stress of squeezed branch piles under hole expansion ; taking the oil pressure of hole expansion in to account, we have find the a branch force under certain hole pressures, hence we can estimate the maximum bearing capacity of single piles ; we have introduced the experiential formulas for the bearing capacity of squeezed branch piles based on its stress characteristic and pile testing data ; we have also done numerical simulations of squeezed branch piles utilizing finite element method software ansys ; we have matched the simulation res ults with those of on - site basic load experiments, regenerating the distributions of stress fields and strain fields of squeezed branch piles, and from those distributions, we can determine the optimal distances between plates and piles
為了完善支盤樁的設計理論，探求支盤樁高承載力和低沉降量的內涵，本文推導出了支盤樁任意深度的截面荷載以及位移隨深度變化的理論公式；基於已有的靜載試驗成果及有關擴底樁的研究成果，從對現場測試數據的分析，將球形孔擴張理論引入到支盤樁擴孔時徑向應力的計算，考慮到擴孔時的油壓數據，求得某一孔壓下的支盤力，據此估算單樁極限承載力；同時根據對支盤樁的受力特點和試樁數據的分析，提出了支盤樁承載力計算的經驗公式；用有限元分析的方法，利用大型有限元分析軟體ansys對支盤樁進行數值模擬，並將模擬結果同現場的靜載試驗結果進行對比，再現了支盤樁在荷載作用下土中應力場和位移場的變化，根據應力場和位移場的變化范圍，指出最佳盤間距和樁間距；為支盤樁的設計和施工提供了一個可量化的設計依據。 -
Abstract : focused on the metal plastic forming of valve bodies for power plant boiler, a new process named “ shear extrusion ” is described in this paper. the numerical simulation analysis is carried out by using the 3 - d deform software to predict the distribution of velocity, stress, strain and temperature fields during the forming process and the flow law of metal. then the numerical simulation results are testified by simulative experiment. finally, large - size valve bodies have been successfully formed by the screw press
文摘:針對電站鍋爐用大型截止閥體的製造新工藝? 「剪切擠壓」 ，利用數值模擬的方法對剪擠工藝進行研究，得到了成形過程中速度、應力、應變及溫度場等的分佈及金屬流動規律，並通過物理模擬實驗進行了驗證，進而為獲得閥體剪擠製造的最佳成形工藝參數提供可靠依據。
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