塑性流模型 的英文怎麼說
中文拼音 [sùxìngliúmóxíng]
塑性流模型
英文
plastic flow model- 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 ...
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 模 : 模名詞1. (模子) mould; pattern; matrix 2. (姓氏) a surname
- 模型 : 1 (仿製實物) model; pattern 2 (制砂型的工具) mould; pattern3 (模子) model set; mould patter...
-
By using one - dimensional finite different hydrodynamic code coupled with four spall models, spall in ductile metal has been studied
摘要在平面一維彈塑性流動有限差分計算程序中加入4種延性金屬層裂模型,對平板撞擊層裂實驗進行數值模擬。In addition, the constitutive models included in flac - 3d are deep into research, and th e stress increments are corrected in terms of the plastic strain increment while occurrence of plasticity flow
此外,還對flac - 3d內嵌的本構模型深入研究,塑性流動發生時塑性應變增量對應力增量的修正。Compared with the reality, it shows that this model and its parameters are defined reasonablly. to analyse the arrangement of drainage system with different spacings and depths, with unsteady flow formula and benefit index, this paper gives a two - dimensional non - linear programing model for arrangement of drainage system in the barley field, which can be solved by the method of projected gradient. by this model, we make out the optimum solution of spacings and depth of pvc pipe in littoral area of changjiang river that is s = 21. 5 8m, h = l. lm
論文通過對不同埋深、間距的塑料暗管排水布局的分析,結合非穩定流公式和效益指標,提出了麥田排水暗管布局的二維非線性規劃模型,並利用梯度投影法求解,得出長江下游濱海地區塑料排水暗管埋設的最優方案為埋深h = 1 . 1m ,間距s = 21 . 58m 。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。Lagrange wave speed in the release process was computed from the measurement, and result shows a good agreement with the data in literature. furthermore from the lagrange wave speed, the stress - strain relationship in the release process was calculated using the impedance match solution. comparison of the stress - strain with the fluid elastic - plastic model indicates that ofhc copper exhibits a clear work - harden behavior during the release
根據界面粒子速度剖面,計算得到了卸載過程中lagrange聲速隨界面粒子速度變化的關系,所得結果與文獻給出的數據符合很好;其次,利用阻抗匹配近似,計算分析了無氧銅卸載過程的應力-應變關系,並與流體彈塑性模型進行了比較,結果表明:無氧銅的卸載過程存在明顯的應變硬化效應。Through the simulation of the forming process, we can get the deformations, stress, strain, plastic flowing in sheets and the interface state under impact load and rolling load, the deformation of the sawtooth form and comparing to the initial state, the results above are expressed in computer animated way. and the effect of geometrical ( mainly different form, including 90 degree, isoceles triangle , 75 degree, and 1. 5 high and wide ), material and technical parameters on the bond strength are analyzed, also including the comparison of different sawtooth form. the optimum parameters are got
對雙金屬復合板成型過程進行模擬,從而得到在沖擊載荷和軋輥壓力作用下基板和覆板的應力、應變分佈和塑性流動變形規律,復合后的齒形的變形情況與初始齒形形成對比,以動畫的方式模擬成型過程,並分析了不同幾何參數(主要是不同的齒型,其中包括直角齒型、等腰齒型、 75度齒型、 1 . 5高寬齒型) 、材料參數、工藝參數對復合強度的影響,以及不同齒型的變形對比以及齒型對復合情況的影響,提出最優齒型、最優工藝參數,有效地指導了實驗。Abstract : based on the result of visioplasticity test, the law of tube central upsetting was created, and the calculated method of displacement field and strain field were obtained. in this study, the four deformation modes were showed when ratio of height to thickness of tubular billet is greater than 3. the four modes were related to the distribution of strainless - plane
文摘:根據管坯視塑性實驗法的實驗結果,分析了無芯軸支撐條件下,管坯中部鐓鍛的變形規律,闡述了變形區位移場、應變場的計算方法;通過對實驗結果的分析,得出了當鐓粗比3 ,管坯中部鐓鍛時,內壁呈現四種典型的變形模式;論述了分流面的分佈與四種變形模式之間的轉化關系。Paper aims at the theory problem of exact celerity machining design which is realized urgently in special shaped products, solves mathematics model of similar forming plastic stream, recurring to modern conformal mapping fruit, builds die mathematics model and optimized function equation of arc square product in precision extruding / drawing, establishes theory model for precision celerity shaped die of cad / cam integrative constitution
摘要本文針對亟待實現的擠壓(拔制)異型材模具精密快速加工設計理論課題,藉助于近代共形映射理論研究成果,求解了異型材擠壓(拔制)模具相似成形塑性流動的數學模型,建立了圓角方型材精密擠壓(拔制)模具模腔數學模型及其優化函數方程,建立了為實現模腔精密快速的cad / cam一體化的理論模型。The study demonstrated that linear visco - elastic parameters of rheological models built by theoretical modeling methods were constant while nonlinear visco - elastic parameters were not constant and changed as stress level changed and that visco - plastic parameters determined the shape of stress - strain curve
研究表明:運用模型理論建立的流變模型的線性粘彈性參數在低應力水平下是惟一的,但非線性粘彈性參數不惟一,並隨應力水平的變化而變化,而粘塑性參數的大小決定了應力應變等時曲線的形狀。According to the practical geological model of slope, by means of the finite element analysis, from the constitutive equations of the elastoplasticity and the viscoelasticity - viscoplasticity, the process and mechanism for progressive failure of the locked segment of rockmass are quantitatively revealed and simulated during the rupture, deformation, destruction, and failure of highsteep slope rockmass, and the dynamics driving the motion of rocky landslide with violent starting velocity by high pressure water flow is dealed with
根據邊坡實際地質模型,基於彈塑性與粘彈-粘塑性理論的本構方程,通過有限元模擬分析,定量地揭示和模擬再現了高邊坡巖體破裂、變形、破壞及失穩前後鎖固段巖體漸進性破壞的機制和過程,探討了高壓水流作用下滑坡啟程劇動的破壞機理。In the classical plasticity calculation, a material model includes the constitution of yield model and work hardening flow stress model
在經典的塑性成型計算中,材料模型包含兩方面的內容:初始屈服表面的確定,流動法則和加工硬化模型的建立。This constitutive model describes the non - associated plastic flow of granular material, and replaces the assumption that granular material complies with associated flow rule in the limit " equilibrium theory of granular material
該本構模型反映了散體材料的非相關塑性流動,取代了散體極限平衡理論中散體材料服從相關流動法則的假定。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。The flow stress model of 35crmo structural steel during hot forming
結構鋼熱塑性變形流動應力模型Based on the brevity discuss about the theory & practice development of performance measurement in internal and oversea commercial banks, and the brief analysis about the main financial performance assessment models, the author analyses the theoretical defects and practical bewilderment of our internal commercial banks " financial performance evaluation system. subsequently, the basic principium & the central thoughts of balanced scorecard ( which is a performance evaluation system grown up in america in 1990s ) are introduced, and after a profound analysis on the meaning of bsc ' s four performance assess factors ( financial, customer, the internal business process, the learning and growth. ), the profound enlightenment meanings, such as forming strategic operation thoughts, implementing bank ' s strategies practically, evaluating operation performance comprehensively and scientifically, are explicated
本文首先簡要論述了商業銀行績效測評概念的內涵與意義,並在對國內外商業銀行績效測評理論與實踐發展及商業銀行主要的財務績效評價模型作扼要評述的基礎上,分析了我國商業銀行當前財務業績評價系統的理論缺陷與實踐困惑;隨后,文章介紹了20世紀90年代在美國興起的平衡計分法績效測評系統的基本原理、核心思想,並在對平衡計分法的財務、顧客、內部業務流程和學習成長四個業績評價要素進行深入分析之後,闡述了平衡計分法對我國商業銀行塑造戰略性經營思維、切實實施銀行戰略、全面科學測評銀行經營績效的深刻啟示意義。Rheological model and equation of viscoelastic - plasticity of paste - like backfill pulp
似膏體粘彈塑性流變模型與流變方程研究On the basis of the previous achievements and the settlement observed data, considering the obvious creep characteristic, visco - elastic - plastic creep model, which reflects the saturated soft clay ' s nonlinear deformation characteristic, has been proposed in this paper, with the consideration of the primary and secondary consolidation settlement. the soft clay visco - elastic and visco - plastic deformation is also depicted respectively
針對具有明顯流變特性的飽和軟粘土,在總結前人研究成果和整理沉降實測資料的基礎上,把主次固結沉降結合起來考慮,提出了反映其非線性變形特性的粘彈塑性流變模型,分別對土體的粘彈塑性變形進行描述。Based on the shale code, the early code of ale, the two dimensional finite difference elastic - plastic flow code hepale has been developed, in which the ideal elastic - plastic model and equation of state of gruneisen are used to describe the solid material, the programmed burn technique is used to simulate the propagation of detonation, and the equation of state of jwl is used to describe the detonation products
藉助于ale方法的早期程序shale的基本框架,開發研製了二維彈塑性流ale方法計算程序hepale 。程序包含用彈塑性本構模型和gr nrisen狀態方程來描述固體材料的行為;採用jwl狀態方程來描述爆轟產物的性質;採用程序燃燒法來模擬爆轟波陣面的傳播。Bingham plastic model
賓漢塑性流模型Fluid - solid coupling mathematical model of elastic - plastic behavior in calculating oil casing transmutation and example
計算套損的彈塑性流固耦合數學模型及算例分享友人