塑性學 的英文怎麼說
中文拼音 [sùxìngxué]
塑性學
英文
plasticity-
In view of bearing capacity of the elastoplastic theory analysis, the author made a comparison between the achieved bearing capacity limit load pi / 4 of round base ( space problem ) and the limit load pi / 4 of bar groundwork foundation design ( plane problem ) from soil mechanics at home and abroad as well as foundation criterion, and explained why the value of formula in present design criterion from soil mechanics is inclined to be conservative. in the light of the author ' s many years experience of vibration test on the spot and the research work of relevant projects, the author worked over the dynamic pile testing of the bearing capacity of foundation and batholith, and gathered the parameter of dynamic analysis and testing. the author also talked over the difficult point of pile foundation design criteria in present batholith engineering world, i. e. the confirmation of batholith bearing capacity of pile end, from the following aspects : a ) confirmation of single axis counter - pressure strength of rock in house ; b ) f. e. m calculation of elastoplastic model ; c ) calculation of soil mechanics ; d ) deep well load test
然後，對巖土工程領域至今尚未解決，甚至不為人注意的考慮地基變形的地基承載力問題進行了實用化的探討，提出了考慮地基變形的地基承載力上程計算方法；對基於彈塑性理論分析的地基承載力國內尚未見報道的空間問題得到了圓形基礎（空間問題）的承載力界限荷載p _ （ 1 / 4 ） ，並與國內外土力學專著及地基基礎設計規范中的條形基礎（平面問題）的界限荷載p _ （ 1 / 4 ） ，進行了對比，從而定量上解釋了目前設計規范引用土力學承載力公式值偏於保守的這一情況；根據本文作者多年從事現場地基工程振動試驗及相關課題的研究工作，本文以截頭錐模型模擬地基，對地基（巖基）承載力的動測法進行了研究，為各類地基（包括巖基） ，匯總了動力分析和檢測川的參數：針對日前巖土工程界應用樁基設計規范中的難點? ?樁端巖基承載力的確定問題，從巖石室內單軸抗壓強度確定、基於彈塑性模型的有限單元法計算、土力學計算及深斤載荷試驗四方面進行了深入討論；本文作者根據多年現場載荷試驗的工程實踐，對深井荷試驗裝置的核心部分? ?反力裝置，設計了側壁支撐反力加載系統，該加載系統具有實用、簡便、穩定及安個等優點。Displacement formula for composite foundation of composite piles is derived by considering the coaction of foundation soil, broken stone pile, cfg pile and bedding cushion and by applying the theory of elastic - plastic mechanics, which is proper for superstructure being constructed
運用彈塑性力學知識，同時考慮地基土、碎石樁、 cfg樁和墊層四者的相互作用，推導出了比較切合實際的上部結構動工后組合樁復合地基的沉降計算公式。Topics in mammalian learning and memory including cellular mechanisms of neural plasticity, electrophysiology, and behavior
有關哺乳類動物學習和記憶的主題，包括神經可塑性的細胞機制、電生理和行為。Roll over protective structure ( rops ) is a device which installs on out of construction vehicle. the main functions are : when the vehicle rolling over. rops can prevent the vehicle from rolling over further, and reduce the possibility of rolling vehicle injures operator ; when the vehicle traveling on freezing soil. concrete and rock, it has large resist continuous impact ability ; when the vehicle overturning rops can support the whole vehicle. arrangement of falling object protective structure ( fops ) can block objects ( such as trees, rocks ) so that supply protection for operator. this problem is that research rolling over and falling objects protective structure of bulldozer by learning research condition of rops / fops and relative lay down international standard. on the base of theory analysis. detrudes counting formula of rops / fops deformation through founding mechanics analysis model of rops / fops at the stage of elasticity and plastoelastic. and finds a set of feasible nonlinear finite element analysis counting. lt calculates rops / fops plastoelastic deforma variable of 320hp bulldozer, bulldozer has been carried out by optimizing design method
其主要功能是：當車輛滾翻時， rops能刺入未凍土壤而阻止車輛的進一步滾翻，降低滾翻的車輛對系著安全帶司機軋傷的可能性；保證rops在碰撞和沖擊變形不大的地面（如凍土、混疑土上、巖石）時，能具有相當大的抗連續沖擊能力；當車輛已經處于顛覆狀態時，已經變形的rops應能支撐住整車。落物保護裝置（簡稱fops ） ，其構件的布置方式要能遮蔽墜落的物體（如，樹木、巖石等） ，以便對司機提供適當的保護。本課題主要通過了解國內外有關對rops fops的研究情況和有關國際標準的制定，對大型推土機傾翻和落物保護裝置進行研究，在理論分析的基礎上，通過建立rops fops的力學分析模型，推導彈性、彈塑性階段rops fops變形的計算公式，建立一套可行的rops fops的非線性有限元分析計算方法。Based on the regional structure dynamics analysis of the lithosphere imbricate structure in lanping - weixi area, the middle section of three - rivers area ( n26 - 28 ), the bouguer gravity anomaly of deep structures was completed and the fractal of these faults was calculated. the geology structure model and the elasticoplastic three - dimension finite - element mathematic are described, made and calculated ; and physical simulation was accomplished
針對三江中段n26 - 28蘭坪-維西地區的巖石圈正交疊加構造的區域構造動力學分析，進行了深部構造的布格重力異常延拓處理和淺部的斷層分維計算，描述、製作計算了地質結構模型、彈塑性三維有限元數學模型和物理模擬。Considering the characters of bp neural network, such as the simple structure, the advisable malleability, self - fitness, self - studying, nonlinear function approximating, the considerable abilities of parallel computing, fault - tolerant and so on, the bp algorithm have been extensively applied to the areas of system modeling, pattern recognition and seismic exploration since 1986. compared with other algorithms, as the above reasons, the bp algorithm has become the most usual and efficient solutions to the artificial neural networks
由於人工神經網路中的bp神經網路結構簡單，可塑性強，具有良好的自適應、自學習、極強的非線性逼近、大規模并行處理和容錯能力等特點，自1986年rumelhart等人提出以來，被廣泛應用於系統建模、模式識別、地震勘探等重要領域。而bp演算法數學意義明確，步驟分明，是神經網路中最為常用、最有效、最活躍的一種方法。Interest plasticity and college innovation education
論興趣的可塑性與大學創新教育In order to fully refect the geo - tech basic mechanics behaviors and to rationally explain the strain localization, this paper establishes the theory framework of gradient - dependent plastic model based on the theory framework of gradient - dependent plastic mechanics and in considering the plastic strain ' s gradient - dependence in double yield function, offers a kind of possible concrete pattern of the generalized plastic gradient model and analyzes each parameter of the model, particularly with the physical sense of " localized parameters " and the elements producing possible effect upon the model
為了較全面地反映巖土的基本力學性質，同時合理解釋應變局部化現象，本文基於廣義塑性力學的理論框架，在雙重屈服函數中考慮了塑性應變的梯度依賴，建立了廣義塑性梯度模型的理論框架，並給出了廣義塑性梯度模型的一種可能的具體形式，分析了該模型的各個模型參數，尤其是其中的「局部化參數」的物理意義和可能對其產生影響的因素。After the stolon had suffered from severing disturbance, clonal ramets could keep photosynthetic organ from being damaged through the plastic responses of the chlorophyll fluorescence traits, such as increasing nonphotochemical quenching of chlorophyll fluorescence ( npq ), decreasing actual photochemical efficiency of ps ii in the light ( f / fm " ) and photochemical electron transport rate ( etr ). moreover, the clonal ramets could also increase water use efficiency by means of decreasing stomatal conductance
在匍匐莖受到切斷干擾后，臭柏能通過提高非光化學猝滅（ npq ） 、降低ps實際光化學量子產量（ f fm 』 ）和表觀光合電子傳遞速率（ etr ）等葉綠素熒光特性的可塑性反應來保護小枝光合機構不被破壞，並且可以降低氣孔導度以提高水分利用效率。Moreover, popularizing such system is expected. the following works have been fulfilled within this thesis : first of all, based on the general principle of virtual displacement of nonlinear continuum mechanics, the geometric and material stiffness matrices is presented, several examples show that both of them can give out accurate result
本論文主要完成了以下工作：首先，根據連續介質力學理論構造出的交錯桁架結構空間單元的幾何剛度矩陣和彈塑性剛度矩陣，算例分析表明這些矩陣能準確地計算出結構的空間二階效應和空間單元彈塑性桿端力增量，計算結果具有良好的精度。Woodiness materials is prepared to thermoplastic through chemical modification, which can easy machining and has biodegradability ; is also composite with resin or plastic to wood - plastic ( wpc ) ; or dipping it into resin then sinter it to woodceramic
摘要木材經過化學改性可制備成易於加工且可生物降解的熱塑性木材；也可與樹脂或塑料進行復合得到木材塑料（木塑復合材料） ；或者將其浸漬入樹脂再進行炭化得到木材陶瓷。The adult brain shows remarkable plasticity, learning - induced plasticity is that an awake animal learns the association between two events and modifies processing ability of its brian to specific information and thus change its behavior as a function of the learned association
成體腦存在顯著的可塑性。學習誘導的可塑性是指動物學習兩個事件之間的聯系而產生的腦對特定信息處理功能的改變並能隨之調整本身行為的現象。Phbv will degrade at the processing temperature, which is much lower than its acute thermal degradation temperature. as the material for chemical fiber, phbv shows some special properties. when it was spun, the as - spun fiber was elastic and finally it would turn to be rigid
作為化學纖維的原料，此類材料的初生纖維在固體狀態表現出的由彈性行為為主向塑性行為為主的轉變直至最後表現為剛性體特徵，直接影響著此類纖維的成形加工過程，成為其進一步發展的瓶頸障礙。In recent years, the pushover method is much more applied by the scholars and engineers for its clear concept and simple usage. up to now, reinforced concrete frame buildings are still used widely in industries and civilian constructions owing to its merits
近年來，由於pushover方法原理清晰、編程簡便，並且能在相當程度上給出強震作用下結構物的彈塑性反應過程，因此，已經越來越得到學術界和工程界的認可。Abstract : on the basis of general principles of mechanics and critical state soil mechanics theory, a theoretical formula determining the coefficient of earth pressure at rest for cohesionless soil is derived by means of combining hypoplasticity with critical state soil mechanics. the formula has a simple form and is only related to the effective angle of internal friction of soil. there is a slight difference between the calculated value of the formula and that of other formulae. the further investigation of the formula shows that it can be used to determine the coefficient of earth pressure at rest of cohesionless soil
文摘:在滿足一般力學原理和臨界狀態土力學理論的基礎上，本文將亞塑性理論與臨界狀態土力學相結合，推出了一個計算無粘性土靜止土壓力系數的理論公式.該公式形式簡單，僅與土的有效內摩擦角有關，其計算結果與常見的多個經驗公式的計算結果只有微小的差別.文中討論結果表明，該公式可用於確定無粘性土的靜止土壓力系數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。Ctod ( crack tip opening displacement ) and j - integral are two important parameters in elastic - plastic fracture mechanics
Ctod （ cracktipopeningdisplacement ）和j積分是彈塑性斷裂力學研究方法中的兩個重要參數。This text is divided into totally three part, the first part clarities mainly the connotation of credit, the meaning transformation and present application. emphasizing on the importance of the corpus credit diathesis in modem society based on the foundation of existing theoretical outcome. furthermore. the text delimitates the connotation of the credit diathesis, induces the feature of using the credit, namely the three greatest features that are made up of objectivity and subjectivity, explicit ages and plasticity ; the author analyzes closely the credit diathesis of students that is very beneficial for further modem social safety, healthy development, building of the fashion of credit moral, purifying educational and academic circumstance and so on
本文共分三部分，第一部分主要在認真吸取現有理論成果的基礎之上，經過分析和調查研究闡明了信用的內涵及其含義的演變，以及在今天生活中的應用，突出主體信用素質在現代社會的重要性，在此基礎之上比較科學地界定了信用素質的內涵，歸納信用素質的特點，即客觀性和主觀性、鮮明的時代性和可塑性三大特點。第二部分比較深入的分析了培養大學生信用素質對于促進現代社會的健康發展、信用道德風尚的建設、凈化教育環境和學術環境等具有的巨大價值，以及對培養合格人才具有非常重要的意義。0 x 10 " 3 and 264. 6mpa respectively. 6. the damping mechanism at ambient temperature is related to viscous motion of dislocation and interactions between dislocation with various point defects, the viscous sliding between the phase with rich zn and primary a dendrite crystals and the micro - plastic deformation of the soft phase in the eutectic
6 ） azsm合金的室溫阻尼行為與組織中的溶質原子和位錯的交互作用以及位錯的粘性運動、富鋅相與基體之間的粘性滑移、以及共晶體中較軟相的西安理工大學碩士學位論文微塑性變形有關。Subject covers all major areas of cellular and molecular neurobiology including excitable cells and membranes, ion channels and receptors, synaptic transmission, cell type determination, axon guidance and targeting, neuronal cell biology, synapse formation and plasticity
本學科涵蓋了細胞分子神經生物學的所有主要領域，包括興奮細胞和細胞膜、離子通道和受體、突觸傳遞、細胞類型決定、軸突導向和定位、神經元細胞生物學、突觸形成和可塑性。分享友人