高應力纖維 的英文怎麼說
中文拼音 [gāoyīnglìxiānwéi]
高應力纖維
英文
high stre fibre- 高 : Ⅰ形容詞1 (從下向上距離大; 離地面遠) tall; high 2 (在一般標準或平均程度之上; 等級在上的) above...
- 應 : 應動詞1 (回答) answer; respond to; echo 2 (滿足要求) comply with; grant 3 (順應; 適應) suit...
- 力 : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
- 纖 : 纖形容詞(細小) fine; minute
- 維 : Ⅰ動詞1 (連接) tie up; hold together; link 2 (保持; 保全) maintain; safeguard; preserve; keep ...
- 纖維 : fibre; staple; filamentary
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The bar - bar impact apparatus of split hopkinson tensile / pressure bar for high strain rate tests of fiber reinforced composites is developed. the components of this apparatus, the data sampling method and software are introduced in details
研製用於纖維束和纖維復合材料高應變率下力學性能測試的桿桿型沖擊測試裝置?分離式hopkinson桿,描述該測試裝置的硬體構成、信號採集和分析計算。The occurrence of high shear stress at the fibre end is a factor which is expected to lead to crack generation.
在纖維端部存在高切變應力視為導致產生裂縫的因素。Through direct pullout test, we examine the effect of the water to cement ratio, contend of steel fiber and silica fume on the bond behavior ; compare the bond behavior of two types of cfrp bars with difference surface treatment ( r1 bars and g1 bars ), and reprocess the one of inferior bond strength ; investigate the bond stress distribution along the bond length of cfrp bars, and assess the adequacy of some exist analytical models of bond - slip behavior to reproduce the experimental bond behavior
本文主要通過直接拉拔試驗,考察水膠比、鋼纖維摻量、硅灰摻量以及cfrp筋的表面處理類型等材料參數對粘結性能的影響,並對粘結效果較差的cfrp筋研究了表面處理方法,以提高cfrp筋與rpc的粘結性能;通過在cfrp筋表面粘貼應變片,測定了粘結應力沿cfrp筋埋長的分佈情況,並對現有的粘結滑移本構模型與試驗結果的擬合效果進行了比較。In spinning process, what should be done is to improve the coherence force of the fibers due to the linen fiber being thick, stiff, smooth, super long and containing more short fibers, causing difficulty to spinning ; in weaving it should focus on the settlement of unclear shedding and more ends breaking caused by fuzzy & poor elasticity of the warp yarn ; finishing plays an key role in improving fabric appearance to solve fold mark & frost mark and enhance style of peach skin and linen knot effects
紡部工序主要克服天絲與亞麻纖維抱合力低,特別是亞麻纖維粗、硬、滑、超長纖維和短纖維率高給紡紗工藝帶來的困難;織造工序重點解決成紗毛羽對開口清晰和經紗彈性差對斷頭的影響;后整理涉及影響外觀質量的摺痕與霜印問題,並要突出桃皮絨和獨特的亞麻麻節外觀效應。In metal matrix composites, thermal residual stresses will arise due to get ( coefficient of thermal expansion ) mismatch between matrix and fiber during cooling
在擠壓鑄造的金屬基復合材料中,由於基體和纖維的熱膨脹系數相差很大,所以在制備過程中由高溫(工藝溫度)冷卻至室溫時復合材料中會有熱殘余應力產生。However, the mechanical properties and orientation of fiber changed little. montmorillonite could also improve the thermal stability of microstructure in pet fiber. we suggest that the strong coherence of the interfaces between montmorillonite microparticles and pet restricts the motions of pet molecular chains, developing " the special continuous network structure " and effectively prohibiting the thermal shrinkage of pet fiber
此外,蒙脫土的添加也有效地提高了纖維的熱尺寸穩定性,我們認為這可能是由於片層結構的蒙脫土在pet基體中類似分子網路交聯點,起到了應力支承點的作用,使分子網的連續性和完善程度變好,有效抑制了纖維的熱收縮。With the very low water to cement ratio, rpc has ultra - high strength high ductility and low permeability. in this paper, the compressive strength of rpc can reach to a high point with the number approximately 135mpa. as illustrated from the study results, we can approve some fundamental conclusions : there are big effects on rpc with deferent kinds and properties of raw materials and deferent curing conditions ; stress - strain curve shows the process of destroy with rpc samples ; x - ray diffraction analysis indicates that heat treatment at temperatures 90 accelerate the hydration of rpc sharply, therefore, mechanical and microstructural properties of rpc are highly dependent on heat treatment ; it is believed that rpc materials have excellent resistance to chloride permeability ; during the heat treatment, the shrinkage of rpc developed quickly because of chemical reactions ; the rpc with slag mostly has the advantage of rpc without slag about resistance to solutions corrosion
研究結果表明:通過對rpc各組分摻量變化的研究,可以找到rpc的最優配合比;試件成型后的熱養護制度對rpc的性能影響巨大; rpc的抗壓應力?應變曲線可以反映出試件受破壞時微裂紋的擴展情況,剛纖維的摻入可以大幅改善rpc的韌性; rpc在成型后存在較大的收縮,而其中的化學收縮要遠遠大於乾燥收縮; rpc具有很強的抗氯離子滲透性能,漿體的密實度很高;通過x射線衍射實驗,可以發現rpc的膠凝體中ch晶體已經幾乎不存在,膠凝體主要由c - s - h凝膠和未水化水泥顆粒組成;在抗溶液侵蝕的實驗中,摻礦渣rpc的抗溶液侵蝕性能在絕大多數情況下要好於不摻礦渣試件,酸、堿溶液和浙江工業大學碩士學位論文摘要一些鹽溶液都會對rpc的結構產生侵蝕作用,但是機理各有不同。Continuous carbon fiber reinforced silicon carbide ceramic matrix composites ( cysic ) are considered as the most promising thermal structural candidate materials for aerospace, energy and nuclear technologies etc. as a key technology for improving high - temperature structural applications of the materials, oxidation protection with anti - oxidation coating system had being paid more and more attentions
連續碳纖維增強碳化硅陶瓷基復合材料( c sic )是一種極具潛力的高溫結構復合材料,在航空航天、能源及核技術等領域有著廣闊的應用前景。為了推進材料的高溫應用,對防氧化塗層已開展了廣泛的研究,但是對目前廣泛採用的cvdsic塗層的缺陷控制鮮有研究。There is not composite enhancing effect to shear resistance of reinforced concrete beams between steel fiber and stirrups
鋼纖維與箍筋之間在提高鋼筋混凝土梁斜截面承載力方面不存在「藕合增強效應」 。It is a combination high quality natural or synthesized fabrication like linen, tencel, elastic fibers, cotton and compound processes like knitting, weaving, jacquarding. the fabric is treated with green high tech processes as biological enzyme softening and non - formaldehyde crinkle killing. the product is featuring natural health - care function, body suitability as well as graceful and fashionable design
採用羅布麻tencel彈力纖維和高支棉等多種優質天然合成保健功能纖維,並應用梭織針織提印花結合等多種復合生產工藝和生物酶柔軟無甲醛抗皺等綠色高新整理技術,具有多種顯著的天然衛生保健功能和良好的人體形態舒適性,而且具有新穎別致和高檔華貴的特殊品質外觀Strain rate and temperature dependence of mechanical properties of high - strength and high - modulus polyethylene fiber yarns
高強高模聚乙烯纖維力學性能的應變率和溫度效應The cycle numbers to fatigue failure of asphalt concrete can be increased greatly by the utilization of polyester fiber, and this enhancement is presented more significantly at lower stress levels
間接拉伸疲勞試驗也表明,聚酯纖維能提高瀝青混凝土的疲勞壽命,且在低應力的情況下改善效果更加明顯。( 6 ) the electrically induced strain is observed in both cfrc and plain oncrete. compared with plain concrete, cfrc demonstrates more sensitive to the outward electric field. that is, cfrc can produce the same strain as plain cement paste with smaller voltage
( 6 )得出了碳纖維混凝土和素混頒土在外加電場作用下,山電場產生的變形與電場的對應關系,表明電場引起的變形隨外加電壓的增加而增加,梁彎曲的方向隨電場方向而變化,碳纖維混凝土比素混凝土具有高的電力敏感性。The methods of shear strengthening of reinforced concrete beams with cfrp are described in this article. the ways of shear - destruction of the beams, the factors affecting shear resistance capacity, the developing of stress are also introduced
對碳纖維布加固混凝土梁以提高抗剪能力的方法作了介紹,對梁在加載后的破壞方式、影響抗剪能力的因數、應力的發展作了闡述。Steel fiber scatters stress converging in the area of the top end of tiny cracks, restrict the occurrence and development of cracks, diminishes the width of cracks, and enhances the integrity of concrete with the occurrence of cracks via the effect of felting between concrete and steel fiber, and consequently the strength of concrete that resists compression, tension, and shear force increases obviously, and the capability of concrete that resists compact, and fatigue, and the ductility and durability of fissured concrete improve
鋼纖維削弱了混凝土微裂縫尖端的應力集中、限制並約束裂縫的產生和開展、減小裂縫寬度、尤其是通過粘結作用提高了裂后混凝土的整體性,從而使混凝土的抗拉、抗彎、抗剪強度顯著提高,其抗沖擊、抗疲勞、裂后韌性和耐久性也有較大程度的改善。The compress tests on multiaxial multi - layer warp knit glass - fiber composite ( mmwk ) have also been carried out at high strain rates. the out - of - plane compressive property of multiaxial multi - layer warp knit glass - fiber composite are also rate sensitive. the maximum stress strain and elastic modulus of mmwk composite increase with the rising of strain rate
首次對多軸向經編玻璃纖維復合材料進行了高應變率下的面外壓縮試驗,實驗結果表明,多軸向經編結構玻璃纖維復合材料在面外力學性能上是應變率相關的,隨著應變率的增加,沖擊壓縮瞬時應力增加,最大應力和最大應變增加,同時初始模量也有增大的趨勢。We are a leading global supplier of high - tenacity polyester fiber and other advanced materials that are used in automobile tire reinforcement, engineered reinforcements, broad and narrow woven fabrics and rope
我們是首屈一指的全球供應商,提供高強力聚酯纖維和其它先進的材料,用於汽車輪胎及工程增強骨架材料寬幅和窄幅織物和纜繩。Through the bonding tests and the theory analysis between the advanced composite glass sheets and the concrete under the general load - carrying condition, the iterative load - carrying condition, the freeze - thaw action, and the defective bonding, the calculative model has been established, and the numerical value of fibre sheet strain under different load - carrying has been confirmed. the bond strength calculative expressions for the concrete bonded with glass fibre sheet under the pull - shear and the bend load - carrying conditions have been established. the author put forward the decreasing coefficient and the calculative expressions for the influence of reinforce effect by the non - effective area and the calculative expressions for the influence of the freeze - thaw action on the carrying capacity of the concrete beams
本文採用美國泰扶高強復合玻璃纖維布以及與之性能相當、由南京玻璃纖維研究院自行研製開發的egfw430型玻璃纖維布兩種材料,通過在靜載、重復荷載、凍融及有缺陷粘結條件下的高強玻璃纖維布與混凝土粘結性能的試驗研究與理論分析,建立了玻璃纖維布-混凝土的粘結計算模型,明確了不同受力狀態下纖維布應變的設計取值,提出了玻璃纖維布-混凝土抗剪粘結強度的計算公式;確定了考慮非有效粘貼面積對加固效果影響的折減系數;給出了凍融循環次數引起承載力下降的插值計算方法;並驗證了重復荷載作用下玻璃纖維布與混凝土良好的粘結性能。Cfrp tendon is a new composite material manufactured by special technology, it has many advantages such as high - strength, low - density, better corrosion - resistant and so on, so it can potentially replace steel tendons in normal concrete structures and prestressed concrete str uctures, particularly in areas where corrosion is a problem
碳纖維塑料筋是採用特殊工藝製造的新型復合材料,它具有強度高,密度小,耐腐蝕等優點,能夠取代普通混凝土結構和預應力混凝上結構中的普通鋼筋和預應力鋼筋,尤其是在鋼筋銹蝕問題嚴重的地區。The carbon fibers with low strength are broken easily according to thermal tension and bend stress damage models, and the carbon fibers with high modulus are broken easily according to thermal shear stress damage model in spite of less damage caused by heat. the carbon fibers with surface glue of epoxy resin are damaged easily in physical and chemical ways because of high oxygen extent and rigidity of epoxy resin
低強度碳纖維容易在熱應力拉伸或彎折破壞模式下損傷;高模量碳纖維高溫損傷小,但國防科學技術大學研究生院學位論文容易以熱應力剪切破壞模式下斷裂;環氧樹脂表面膠剛性較大,氧含量較高,使碳纖維容易受到化學損傷和熱應力彎折損傷,均不宜用來制備c燈sic復合材料。分享友人