塑性和粘塑性 的英文怎麼說
中文拼音 [sùxìnghéniánsùxìng]
塑性和粘塑性
英文
plasticity and viscoplasticity-
And the rock mass as the main object of most engineering practice is developed by all kinds of geotechnical action and force in the long geology history to the complex characteristic of continuous medium, crannied medium and granular medium, to the anisotropic and heterogeneous entity with elasticity, plasticity, viscidity, creepocity and rheology
作為主要工程對象的巖體是在漫長的地質歷史發展過程中經受各種地質營力作用而形成的成因和構造復雜,巖性多樣且包含了連續介質,裂隙介質和散體介質特徵的,兼有彈性、塑性、粘性、流變性的各向異性的非均質地質體。They can also be used for fiber sizing, textile finishing, the reinforcing agent for cement and ceramics, and the preparation of various kinds of latex paints, and all kinds of special adhesion agents. the products of vinyl acetate - acrylic ester copolymer emulsion, which have overcome some defect of homopolymerized products, are newly developed. the modified emulsion has stronger water resistance, better flexibility, and lower glass state temperature
醋-丙共聚系列乳液產品是針對均聚產品的某些缺陷而發展起來的新膠種,它通過醋酸乙烯與丙烯酸脂類共聚改性,提高膠粘劑的耐水性和柔韌性,降低共聚物的玻璃化溫度,使產品對一些均聚乳液難以粘接的材料具有良好的粘接性能,主要產品有:寶麗板膠鋁箔紙膠塑板膠等。Used for producing polyester resin, polyimide resin, water soluble, alkyd resin, water soluble polyurethane resin, plasticizer, water soluble amino - alkyd resin, curing agent for epoxy resin, aeroengine oil, electric capacitor maceration oil, binder, sizing agent, smoke suppressor, instant binder, etc.
:用於製造聚酯樹脂及聚酰亞胺樹脂水溶性聚脂樹脂水溶性聚氨酯樹脂增塑劑和水溶性氨基醇酸樹脂環氧樹脂固化劑以及高級航空潤滑油電力電溶器浸漬油粒料粘結劑施膠劑消煙劑瞬時粘結劑等Basic silicones for industrial use. determination of extrudability fluidity and of viscosity " casson ". method using standard extrusion nozzle
工業用基礎硅塑料.擠壓度流動性和粘度的測定.標準擠壓噴嘴法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。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。Performance for a piezoresistive transducer pressure sensor to thermal and pressure environments can be predicted by finite element method. a simplified 1 / 8 model, considering silicon dioxide and nitride process as well as stack anodic bonding and adhesive bonding processes, was developed. the fem results were found to be comparable to experimental data. case studies suggested that pyrex stack induces certain amount of non - linearity, while it isolates hard epoxy nonlinear effect. flexible epoxy bonding or soft adhesive bonding is preferred to the packaging process. the viscoelasticity and viscoplasticity of bonding material will result in hysteresis and drift errors to sensor output. however, soft adhesive s influence on sensor can be ignored under relative stable environments. more over, detailed design and process information will help to improve modeling application
熱、壓環境下壓阻變換壓力傳感器的性能可以通過有限元方法預測.這里研究了簡化的1 / 8模型,模型考慮了二氧化硅和氮化硅生成過程及堆陽極鍵合和膠粘結合過程.結果發現有限元預測結果和實驗數據具有可比性.範例研究表明,硼硅堆導致產生一定的非線性,但它隔離了硬環氧樹脂的非線性.在包裝過程中最好使用柔性環氧黏合或軟黏膠性結合.黏合材料的黏彈性和黏塑性將會導致傳感器輸出的滯后和漂移誤差.然而,在相對穩定的環境下,軟黏合劑對傳感器的影響可以忽略.此外,詳細的設計和過程信息有助於提高模型的適用性By means of the finite element inverse analysis, based on stress - strain theoretical equations of the elastoplasticity and viscoelasticity - viscoplasticity, the change of the valley - side margin stress distribution during original state, the condition of human cutting a terrace of building houses in the loess slope, and the condition of cutting the top of loess slope is elucidated
3 .基於粘彈?粘塑性理論的本構方程,運用有限元方法進行反演分析,闡明了宅基邊坡谷緣在天然條件、斬坡建窯條件下和削坡條件下的應力場變化特點。結果表明,谷緣在斬坡建窯條件下拉張應力和剪切應力增大是導致崩塌產生的根本原因。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。Products and systems for the protection and repair of concrete structures - test methods - part 3 : determination of the adhesion of injection products, with or without thermal cycling - slant shear method
混凝土結構防護和修理用產品和系統.試驗方法.第3部分:有或無熱循環的注塑產品粘結性的測定.斜剪切方法Abstract : based on the rigid visco - plastic fem technique, this paper numerically simulate the superplastic bulging process of void - sensitive materials using pressure controlling strategy of maintaining maximum effective strain rate constant and void damage evolution model of superplastic forming
文摘:基於剛粘塑性有限元技術採用最大應變速率恆定的壓力控制策略和超塑性成形空洞損傷演變模型對空洞敏感材料的超塑性脹形過程進行了數值模擬。Abstract : in this paper, rigid visco - plastic fem technique is applied to numerically analyze the factors affecting the forming time of superplastic bulging, and the regularities of forming time affected by different factors are given by examples of constant pressure and constant strain rate die - bulging of cylinder parts, all of which provides guideline for process planning in actual superplastic bulging
文摘:採用剛粘塑性有限元技術對超塑性脹形成形時間的影響因素進行了數值分析,以圓筒形零件的恆壓和恆應變速率充模脹形為例,給出了不同因素對超塑性成形時間的影響規律,為超塑性脹形實際工藝設計提供了依據。In this dissertation, investigations were performed aiming at metallic polycrystals with medium grain size. numerical simulations and uniaxial tension tests were carried out to investigate the evolution of microstructure and mesoscopic viscoplastic behavior at elevated temperature
本文主要針對未經細化晶粒處理的金屬多晶材料,試驗和數值模擬相結合,研究高溫變形中材料微結構演化及細觀粘塑性力學行為。Research on the thermal - viscoplastic constitutive relation of damaged materials and numerical simulation of circular tubes fracture
含損傷材料的熱粘塑性本構關系和柱殼破裂研究A thermal rigid - visco - plastic constitutive relation accompanied by dynamic recrystallization is implanted into deform3d based on the unix and windows system by means of the user routines in order to add the function of predicting microstructure evolution during hot forging process to deform3d
在unix和windows平臺上,對現有的體積成形商業軟體deform3d進行了二次開發,利用deform3d的用戶子程序功能,插入了包括動態再結晶過程的熱粘塑性本構模型。In this article, we introducte the advanced numerical, analysis method - finite element method and lucubrate the rigid - viscoplasticity basic theory for three - dimensional problem with the metal ' s specific feature of the warm extrusion forming process, the analytical procedure of metal ductility forming process and the rigid - viscoplasticity finite element method ' basic theory. the rigid - viscoplasticity ' s modle has been made and the rigid - viscoplasticity ' s modle finite element columnwise based on the lagrange facil method and overtension overtress has been deducted in this paper. at the same time, we have analytic studied the forming technique process for the sway oil pump stator
本論文採用先進的數值分析方法? ?有限元法,結合金屬在溫擠壓成形過程的具體特點,詳細論述了三維問題的剛粘塑性有限元法,介紹了金屬塑性成形過程的分析方法,以及剛-粘塑性有限元法的基本理論,建立了剛-粘塑性模形,推導了基於lagrange乘子法和過應力模形的剛粘塑性有限元列式,並對轉向油泵定子的成形工藝過程進行了研究分析。Then to provide insight into the development of instabilities on the surface of the armature, a viscoplastic constitutive model is formulated in a user defined material subroutine to model the microvoid ' s growth
為解釋電樞表面不穩定性的形成,結合gurson - tvergaard - needleman屈服模型和johnson - cook強度模型,通過用戶材料子程序,實現了微孔洞增長的粘塑性本構關系。Deformation of preloaded soft ground was calculated with the yin ' s double yield surface model, the viscoelastic - viscoplastic model and the viscoelastic - viscoplastic damage model respectively
結合堆載預壓加固軟基實例,分別採用殷宗澤雙屈服面模型、粘彈粘塑性和粘彈粘塑性損傷模型進行有限元分析。It ' s shown that the simulation results with viscoelastic - viscoplastic - damage model are closer to the in - situ measured data, so both damage and creep of soft soil must be considered in engineering analysis
結果表明,用粘彈粘塑性損傷模型計算的結果與實測值比較接近,說明在工程分析中同時考慮軟土流變和損傷是必要的。Introduce the domestic and foreign standards and methods to evaluate low - temperature properties, synthesize plastic and flow principles of environment friendly lubricants and finally reach a ground that illustrates the low - temperature flowability of environment friendly lubricants
介紹了國內外評價低溫性能的指標和技術方法,對潤滑油的粘塑性流變機理進行了理論推導,從而找出解釋環境兼容潤滑油低溫流變特性的根據。分享友人