( 3 ) the elasticity modulus of the fsmf powder is estimated 武漢理工大學(xué)碩士學(xué)位論文( 3 )估算了fsmf粉體的彈性模量。
The analysis method and cmm method are used to estimate the elasticity modulus of the fsmf powder . that offers a valuable reference to evaluate and apply the mineral composite filler 利用解析法和cmm法分別估算了fsmf粉體的彈性模量,為評價和應(yīng)用該礦物復(fù)合填料提供了有價值的參考依據(jù)。
The relationship between mechanic characteristics of composite ground and the length , the distance , elasticity modulus and replacement percentage of piles are discussed . the results of computing analysis has been contrast to the experimental data 研究樁長、樁距、樁體模量以及置換率對單樁承載力、樁間土承載力發(fā)揮值以及樁土應(yīng)力比的影響程度,并將計算結(jié)果與實測結(jié)果相比較。
But thermal stress ca n ' t be calculated without damage . and then it provided in this article the equation of the elementary damage , material intensity , elasticity modulus and temperature evolvement of rupture energy . 6 微裂縫的形成與發(fā)展仍然是由溫度應(yīng)力造成的,但此溫度應(yīng)力應(yīng)是考慮損傷行為的應(yīng)力,據(jù)此,文中導(dǎo)出了反映初始損傷、材料強(qiáng)度、彈性模量以及斷裂能的溫度損傷演變方程。
This paper describes the new production and properties of ductile fiber reinforced cementitious composites ( dfrccs ) . this particular dfrcc contains polyvinyl alcohol ( pva ) fibers , employing low fiber volume fractions ( between 1 % and 2 % ) and high - strength and high elasticity modulus 本文采用低摻量(纖維體積率為1 2 )的高強(qiáng)高彈聚乙烯醇纖維(簡稱pva纖維)進(jìn)行了延性纖維增強(qiáng)水泥基材料( dfrccs )的研制與性能測定。
First , mathematical model of swaying system is made , which is a basis on later chapters . meanwhile , the system is simulated and designed . the effect of loaded mass , loaded suppleness , general leaking coefficient and cubage elasticity modulus on performance of system is also analyzed 首先,作者建立了橫蕩控制系統(tǒng)的數(shù)學(xué)模型,作為以后各章節(jié)討論的基礎(chǔ),同時對系統(tǒng)進(jìn)行仿真和設(shè)計,并研究了系統(tǒng)負(fù)載質(zhì)量、負(fù)載剛度、總漏損系數(shù)和容積彈性模數(shù)對系統(tǒng)性能的影響。
Filling flexibilizer , such as epoxy terminal block , polyurethane ether structure , thiokol and liquid ctbn to the system of expoxy - mannich amide , through the test on shear strength , bounding elasticity modulus and break strength of cured products , the different fuction could be found using different flexibilizers 摘要在環(huán)氧酚醛胺體系中使用端環(huán)氧基聚氨酯醚、聚硫橡膠、液體丁腈橡膠等活性增韌劑,通過對固化物剪切強(qiáng)度、彎曲彈性模量及斷裂強(qiáng)度的測試對比,可以看出不同增韌劑效果不同。
Influence of the temperature field and stress field is ignored but some other factors are considered such as temperature difference between the surface and inside of the concrete , circumstance temperature , work sequence , shaping period , elasticity modulus , the volume etc . and the emulation technology is applied to calculating the construction of the concrete 運用仿真技術(shù)對大體積混凝土結(jié)構(gòu)進(jìn)行了不考慮損傷狀態(tài)下的溫度場及應(yīng)力場的仿真計算。計算過程中綜合考慮了混凝土結(jié)構(gòu)內(nèi)部溫度的變化,環(huán)境溫度的變化,施工順序,澆筑時間以及材料彈性模量的變化,徐變特征,自身體積等因素,同時指出了仿真計算中存在的問題與不足之處。
A full - scale review of the nonmetal mineral filler to improve the strength and toughness of the resin matrix materials in the domestic and overseas is presented . based on the theory and experiment , the mechanism of the fsmf filler to build up the strength and toughness in the resin matrix composite materials is studied ; the relation of the mechanical property of the resin cast and the content of the fsmf is obtained ; the elasticity modulus of the fsmf powder is estimated by analysis method and cmm method ; in the end , fsmf used in rpmp is discussed 本文對非金屬礦物填料填充樹脂復(fù)合材料增強(qiáng)增韌的國內(nèi)外研究現(xiàn)狀進(jìn)行了較全面的評述;在理論和實驗的基礎(chǔ)上,研究了fsmf填充樹脂復(fù)合材料增強(qiáng)增韌機(jī)理;進(jìn)行了fsmf填充樹脂澆鑄體的有關(guān)力學(xué)性能測試,獲得了fsmf填充樹脂澆鑄體的有關(guān)力學(xué)性能與fsmf含量的關(guān)系;利用解析法和cmm法,估算了fsmf粉體的彈性模量;最后探討了fsmf在玻璃鋼夾砂管道中的應(yīng)用。