ultimate adj. 1.最后的,最終的,極限的,結(jié)局的。 2.根本的,首要的,基本的。 3.最遠(yuǎn)的;終極的;【力學(xué)】最大的。 the ultimate end of life 人生的終極目的。 to the ultimate ends of the world 到天涯海角。 n. 終極;頂點(diǎn);最后結(jié)果;基本事實(shí),基本原理。 in the ultimate 到最后,終于。 adv. -ly ,-ness n.
stress n. 1.壓力,壓迫,緊迫,緊張。 2.【語(yǔ)音】重音;重讀;【詩(shī)】揚(yáng)音;語(yǔ)勢(shì),著重點(diǎn)。 3.重要(性),重點(diǎn),強(qiáng)調(diào)。 4.【物理學(xué)】應(yīng)力;脅強(qiáng),重力。 The landlord has imposed a severe stress on the poor tenants. 房東給貧苦的房客們加了很大的壓力。 We must lay stress on self reliance. 我們必須強(qiáng)調(diào)自立更生。 Give stress to the 2nd syllable. 重讀第二音節(jié)。 stress diagram 【工業(yè)】應(yīng)力圖。 moisture stress 缺水。 tensile stress 【材】抗張應(yīng)力。 be stressed out (因心理壓力過(guò)重而)精疲力盡的。 driven by stress of=under stress of. in times of stress 在緊張[繁忙,困難]的時(shí)候。 lay [place, put] stress on 強(qiáng)調(diào),用力干,著重于。 under stress of 被…逼迫著,在…強(qiáng)制下,由于,因?yàn)椤?vt. 1.著重,強(qiáng)調(diào),加重語(yǔ)氣說(shuō)。 2.用重音讀。 3.加壓力[應(yīng)力]于,壓,壓迫。 adj. -ful ,-less adj.
Calculation methods for the ultimate stress and effective height of external prestressing tendons 體外預(yù)應(yīng)力筋極限應(yīng)力和有效高度計(jì)算方法
Relations between the fractal dimensions of tensile fractures and the tensile ultimate stresses for the grain composite material caco3 abs 拉伸斷口表面分形維數(shù)與其拉伸強(qiáng)度極限的關(guān)系
Measures in force per unit area [ i . e . pounds per square inch ( psi ) ] the ultimate stress that can be withstood by a material in tension prior to failure 在出現(xiàn)問(wèn)題前材料單位面積所能承受的極限拉力,例如:磅每平方英寸( psi ) 。
An important step in structure design is the calculation of the ultimate flexural strength of external prestressed concrete beams , which needs to calculate the ultimate stress increment of external tendons first 結(jié)構(gòu)設(shè)計(jì)的一個(gè)重要環(huán)節(jié)就是極限承載力計(jì)算,而計(jì)算體外預(yù)應(yīng)力混凝土梁的極限承載力就必須求得梁在破壞時(shí)的體外筋應(yīng)力增量。
At last , the effect of the steel yield strenth , the yield - to - ultimate stress ratio , the shape and size of the access hole is researched . in conclusion , the finite - elenent model and the program adoped in this paper can well similate the response of beam - to - cloumn connections uder cyclic load 本文所建立的模型及采用的程序能夠很好的模擬、研究在循環(huán)荷載作用下剛性梁柱連接的反應(yīng),為進(jìn)一步研究剛性鋼框架梁柱連接的抗震性能打下了基礎(chǔ)。
This paper demonstrates ultimate stress increment of unbonded tendons can be composed of approximate elastic deformation along the elements and local plastic deformation by nonlinear analysis on the unbonded partially prestressed concrete continuous structures . referring to the rule of ultimate stress increment of unbonded tendons at every load case , a regression formula of ultimate stress increment of unbonded tendons based on elastic - perfectly plastic model has been presented for engineers to calculate ultimate stresses of unbonded tendons in prestressed concrete multi - span continuous structures 考慮在各種荷載工況作用下無(wú)粘結(jié)筋極限應(yīng)力增量的變化規(guī)律,并與理想的彈塑性模型相比較,最終得出以理想彈塑性模型計(jì)算各種荷載工況作用下無(wú)粘結(jié)筋極限應(yīng)力增量的回歸公式,從而為預(yù)應(yīng)力混凝土多跨連續(xù)結(jié)構(gòu)的無(wú)粘結(jié)筋應(yīng)力設(shè)計(jì)計(jì)算提供有益的參考。
This thesis briefly analyzes some yield criteria and instability criteria to the sheet metal forming first . then according to the transformation rule from ultimate strain to ultimate stress , it establishes the mathematical calculation models of the forming limit stress diagram for the software development according to hill48 、 hill79 and hosford yield criterion irrespectively 本文首先分析了板料成形的屈服準(zhǔn)則和失穩(wěn)準(zhǔn)則,然后根據(jù)極限應(yīng)變到極限應(yīng)力的轉(zhuǎn)換關(guān)系,分別采用hill48屈服準(zhǔn)則、 hill79屈服準(zhǔn)則和hosford屈服準(zhǔn)則,建立了用于軟件開(kāi)發(fā)的成形極限應(yīng)力圖的數(shù)學(xué)計(jì)算模型。
The study in the paper starts with beam distortions , and it treats the plastic deformation area as pure bending sect , rest of the beam as rigid bodies . according to different shapes of the external tendons , it divides into three structural forms familiar in projects , that is the beams with no deviator , with a deviator and with two deviators , and studies the relation between the deformation of the external prestressing tendons and that of the beams , and derives the formulas of the ultimate stress increment of external tendons . in the formulas , the ultimate angle corresponding to half of the plastic deformation area is considered as a variable parameter 本文首先從梁極限狀態(tài)下的變形入手,將塑性鉸區(qū)看作純彎段,將塑性鉸以外的區(qū)域看作剛體,按照體外預(yù)應(yīng)力筋的形狀不同,分工程中最常見(jiàn)的三種體外結(jié)構(gòu)形式,即無(wú)轉(zhuǎn)向塊的直線型體外筋混凝土梁、具有一個(gè)轉(zhuǎn)向塊的單折線型梁和具有兩個(gè)轉(zhuǎn)向塊的雙折線型梁,研究體外預(yù)應(yīng)力筋變形和梁體的變形間的關(guān)系,推導(dǎo)出以極限狀態(tài)下塑性鉸區(qū)之半對(duì)應(yīng)的轉(zhuǎn)角為參數(shù)的計(jì)算體外預(yù)應(yīng)力混凝土簡(jiǎn)支梁以及連續(xù)梁的體外筋應(yīng)力增量計(jì)算公式,并進(jìn)一步求得梁的極限承載力。
Ultimate stress increment is a hotspot problem in theory of unbonded partially prestressed concrete structure , however , according to design critera and the art of the state on this issue around the world , it is still not considered in reason that ultimate stress of unbonded tendons in prestressed concrete multi - span continuous structures varies with load cases 無(wú)粘結(jié)筋的極限應(yīng)力增量一直是無(wú)粘結(jié)預(yù)應(yīng)力混凝土結(jié)構(gòu)理論中熱點(diǎn)問(wèn)題,而從目前各國(guó)的設(shè)計(jì)依據(jù)及研究現(xiàn)狀來(lái)看,還沒(méi)有合理考慮多跨連續(xù)結(jié)構(gòu)的無(wú)粘結(jié)筋極限應(yīng)力隨荷載工況變化的情況。