effective adj. 1.有效(力)的,靈驗的;顯眼的,〔美國〕生效的,被實施的;【軍事】有戰(zhàn)斗力的。 2.【經(jīng)濟學(xué)】實質(zhì)上的;有實價的 (opp. potential, nominal)。 3.【軍事】精銳的。 effective horsepower 【物理學(xué)】有效馬力。 effective range 有效射程。 an effective shot 命中(彈)。 an effective landing area 【航空】安全降落區(qū)。 the effective wind 平均風(fēng)速。 effective segregation 【生物學(xué)】正分離。 effective coin [money] 硬幣。 the effective strength of an army 軍隊的戰(zhàn)斗實力[有生力量]。 be far from effective 很不得力。 become effective 〔美國〕(法令等)生效。 take effective measures 采取有效措施。 n. 【軍事】 〔pl.〕 現(xiàn)役兵額,有生力量;精兵。 adv. -ly 1.有效地,有力地。 2.實際上。 n. -ness 有效;有力。
Prediction of the effective modulus for fiber reinforced composite 纖維增強復(fù)合材料的有效模量預(yù)測
Effective moduli of composites based on confocal ellipsoid model 基于共焦點橢球構(gòu)型的復(fù)合材料有效性質(zhì)預(yù)測
Effective modulus of composite materials with doubly periodic rigid line inclusions of unequal length subject to antiplane shear 含雙周期不等長剛性線材料有效反平面剪切模量研究
The relation between poroelastic modulus and effective modulus of rock under dry and fluid - saturated conditions was discussed in this paper 論述了在干燥和飽和兩種情況下,巖石的有效體積模量于孔隙彈性模量的關(guān)系。
Finally , the mori - tanaka estimate is used to evaluate the effective moduli of polygon - shaped fibers composites having slightly weakened interface 最后,采用mori - tanaka理論計算非完美界面條件下纖維增強復(fù)合材料的有效模量,其中纖維的橫截面為凸多邊形。
The creep data of frp jacket were obtained in the test . 3 . the analytical studies were carried out using the age - adjusted effective modulus method for creep of concrete , combined with the findley ’ s power law 3 .采用齡期調(diào)整有效模量法( aemm )計算混凝土徐變,結(jié)合findley模型計算frp徐變,建立了損傷加固柱的徐變計算模型。
By laplace transforming the governing equation of the problem of unidirectional fiber reinforced composite materials , the formulae for predicting the viscoelastic relaxation moduli in laplace transformed domain are obtained . according to correspondence principle of viscoellastic mechanics and elastic , mechanics , the results of effective moduli for several s are obtained by using the finite element method of the homogenization . then effective relaxation moduli should be curve - fitted , according to the viscoelastic relaxation modulus formulae of many viscoelastic materials 首先對單向纖維增強復(fù)合材料粘彈性問題的控制方程進行l(wèi)aplace變換,在像空間s中利用均勻化理論建立宏觀松弛模量的laplace變換泛函形式,根據(jù)粘彈性-彈性對應(yīng)原理,用均勻化問題的有限元方法預(yù)報單向纖維增強復(fù)合材料在相空間中多個離散點的本構(gòu)關(guān)系,然后根據(jù)典型粘彈性材料的松弛模量具有的函數(shù)形式進行曲線擬合,再通過對擬合出的函數(shù)進行l(wèi)aplace逆變換,從而再回到時間t域,就得到了單向纖維增強復(fù)合材料的松弛模量。
Using the time dependent finite element method of age - adjusted effective modulus , the author calculates the deflection which is induced by shrinkage and creep in a continuous rigid frame bridge of urban rail transit , and further compares with the site test result , the conclusion is very meaningful 摘要采用按齡期調(diào)整有效模量的時變分析有限元法,對城市軌道交通預(yù)應(yīng)力混凝土連續(xù)剛構(gòu)橋的收縮徐變變形進行了理論計算,并與實測結(jié)果進行了對比分析,結(jié)果表明理論計算是可信的。
Abstract : this paper studies several main codes of prestressed concrete in the world and analyses their methods to calculate the long - term stress losses . all these methods are divided into two groups . the author introduces the theory of the first group ? ? “ the age - adjusted effective modulus method ( aemm ) ” and analyses how to determine the modulus used in these methods . then , as example , two prestressed concrete beams are calculated to compare the result of different methods . at last , some recommendations for the calculation of long - term stress losses are given to improve the present code of our country 文摘:定性分析了國內(nèi)外幾本主要規(guī)范、規(guī)程和建議中關(guān)于預(yù)應(yīng)力長期損失的計算方法,將其分為兩類,推導(dǎo)了第一類方法的理論基礎(chǔ)? ?齡期調(diào)整的有效模量法,詳細分析了第一類計算方法中各系數(shù)的取值,并以兩根預(yù)應(yīng)力混凝土梁為例對各方法的計算結(jié)果進行了定量分析,最后對我國預(yù)應(yīng)力長期損失計算方法提出了改進建議。
This paper studies several main codes of prestressed concrete in the world and analyses their methods to calculate the long - term stress losses . all these methods are divided into two groups . the author introduces the theory of the first group ? ? “ the age - adjusted effective modulus method ( aemm ) ” and analyses how to determine the modulus used in these methods . then , as example , two prestressed concrete beams are calculated to compare the result of different methods . at last , some recommendations for the calculation of long - term stress losses are given to improve the present code of our country 定性分析了國內(nèi)外幾本主要規(guī)范、規(guī)程和建議中關(guān)于預(yù)應(yīng)力長期損失的計算方法,將其分為兩類,推導(dǎo)了第一類方法的理論基礎(chǔ)? ?齡期調(diào)整的有效模量法,詳細分析了第一類計算方法中各系數(shù)的取值,并以兩根預(yù)應(yīng)力混凝土梁為例對各方法的計算結(jié)果進行了定量分析,最后對我國預(yù)應(yīng)力長期損失計算方法提出了改進建議。