拉應力的 的英文怎麼說
中文拼音 [lāyīnglìde]
拉應力的
英文
tensile-
The frozen coal destruction is the tension stress destroys, and establish the frozen coal cutting model in this foundation, obtains the cutting force, feeding force, tooth spacing according to the smallest energy principle. bring forward a rotary drilling mothod to unload the frozen coal, the broken ability is strong, without frozen depth limits, then obtains this machine working parameters, has combined this method with a grab and determined the plane of vehicle - carried rotary drilling movable coal - unloader
凍煤破壞是拉應力破壞,在此基礎上建立了凍煤的切削模型,根據最小能量原理得到截割力,進給力和截齒間距的計算公式,分析得到截割力與切削厚度成正比,隨著前角的增大而減小;截齒最優截距與截齒尺寸有關且與切屑厚度成正比;進給力隨著截齒前角增大而增大的規律。The temperature of surface concrete varies with environmental temperature, but the conductibility of inner concrete is very poor. as a result, a quick decrease of environmental temperature will lead to large temperature gradient and then tensile stress develop soon in the thick direction, which will probably occur on the entire cross - section
混凝土表面溫度隨外界溫度波動而波動,但內部的導溫性能很差,所以在外界溫度驟降時將引起很大的溫度梯度,從而在厚度方向上拉應力發展很快,這極易引起全斷面拉應力發生。But this kind of constringency transform because of its inner part not even stress and all control functions exist with exterior, and make concrete produce to pull - stress and pull - strain
而這種收縮變形又由於其內部應力不均和外部約束作用的存在,使混凝土產生過大的拉應力和拉應變。It is obvious that the loading of fig. 19(a)produces both direct tension and bending stress on the cross section.
顯然,圖19(a)的加載在截面上產生了正的拉應力彎曲應力。The plating in ships is generally subjected to combined in - plane and lateral pressure loads. in - plane loads include biaxial compression / tension and in - plane bending and edge shear, which are mainly induced by overall hull girder bending and / or torsion of the vessel. lateral pressure loads are due to water pressure and cargo
面內載荷分為軸向壓應力或拉應力、邊緣剪切應力以及面內軸向彎曲應力。實際的船舶結構中面內載荷通常由船體梁的總縱彎曲或者船體梁的扭轉引起。側向壓應力則由水壓力和貨物壓力引起。Lastly, pressing stress is related with enter angle, structural parameter, the progression and physical character of the poweder. the experiment verified tube roll mill " s grinding effect prior vertical mill and roller
通過對筒輥磨層壓應力的分析可知:筒輥磨層壓應力與拉入角,結構參數,粉體級配物理性質有關。This paper focuses on the problem of semi - infinite elastic body filled with the material which behaves differently in tension and compression. the contents include : ( 1 ) the solution of elasticity theory for the material incapable in tension is established by introducing heaviside function ; ( 2 ) the solution of elasticity theory with different modulus in tension and compression is established based on the solution of elasticity theory for the material incapable in tension and mindlin ' s solution ; ( 3 ) the solution of elasticity theory with different modulus in tension and compression is employed to analyze the stress of pile foundation ; ( 4 ) the solution of elasticity theory with different modulus in tension and compression is employed to analyze the settlement of pile foundation
本文考慮材料的拉壓性能不同的特點,對半無限空間內部作用豎向集中力問題進行了新的研究,做了如下工作: ( 1 )引入heaviside函數,建立了不能承受拉應力材料的彈性理論解; ( 2 )基於不能承受拉應力材料的彈性理論解和mindlin解,建立了拉壓模量不同材料的彈性理論解; ( 3 )將拉壓模量不同材料的彈性理論解應用於樁基應力分析; ( 4 )將拉壓模量不同材料的彈性理論解應用於樁基沉降分析。The dynamic tensile stresses of earthquake may balance or exceed to the precompression stresses due to static watef, this may arouse opening of joints along the normal direction. if the altemate actions of earthquake join, the joints may behave gradual opening and closing
由於地震作用時的動拉應力將抵消並超過靜載作用下的壓應力,導致橫縫面沿法向張開,加上地震的交變作用,橫縫可能會呈現反復的「漸開漸合」現象。The welding technology of francis turbine runners is optimized from the view of subsection welding and local heating by numerical simulation. the result shows that welding residual tensile stress appears in the weld and its area nearby, and peak stress appears in the dangerous area of blades after practising quondam welding technology ; welding residual tensile peak stress in the dangerous area of blades can be decreased by welding both ends earlier and then welding middle section later during subsection welding, and decreasing effect on welding residual stress of the subsection welding is related to the weld length of blade outlets and welding direction of each subsection ; decreasing effect on residual stress of the local heating is direct proportional to heating time, heating temperature, heating area, and inversely proportional to cooling area, and welding residual tensile peak stress in the dangerous area is decreasing trend earlier, and then increasing trend later with heated location increased
本文利用數值模擬手段對轉輪的焊接工藝從分段焊和局部加熱兩個方面進行了優化,結果表明:採用普通工藝焊接時,葉片焊后殘余拉應力出現在焊縫及其附近區域,並且在葉片出水邊的熔合線附近(危險區域)出現了峰值;在採用優化的分段焊時,先焊兩端后焊中間的方法可以降低葉片危險區域的焊接殘余拉應力峰值,降低效果與葉片出水邊焊段長度、焊縫各段的焊接方向有關;局部加熱法降低轉輪危險區域殘余應力的效果主要與加熱時間、加熱溫度以及加熱面積成正比,與冷卻面積成反比,並且危險區域的殘余應力隨加熱區域的增大呈先降低后升高的趨勢。Compared the results of fea and the data of experiment, we can analyse that the distributing of the seismic stress of polymer - geogrid reinforced material is similar to that of the static stress, but the stress values of them is different ; the seismic similar friction coefficient between the earth and reinforced material fall with the increasing of earthquake acceleration, model acceleration respond along the height of the model, etc. thirdly, according to the comparison and analysis of the model seismic fea results and model experiment data, we can find the polymer - geogrid reinforced earth seismic fea is reasonable, which is composed by earth element, contact element and reinforced material element
通過對比有限元計算結果和試驗數據,分析得出塑料土工格柵筋材的最大動拉應力的分佈與靜拉應力的分佈沿筋材的埋深大致相同,只是應力的值大小不同;地震作用下土筋間的動似摩擦系數是隨地震加速度的增加而減小;模型沿墻高方向的加速度響應等。接著,根據模型動力有限元時程分析結果和模型試驗數據的比較分析,得出由土體單元、接觸單元和筋材單元組合的塑料土工格柵加筋土非線性動力有限元分析模式的合理性。Mechanical properties of corrosion - resistant stainless steel fasteners - part 3 : set screws and similar fasteners not under tensile stress iso 3506 - 3 : 1997 ; german version en iso 3506 - 3 : 1997
耐蝕鋼緊固件的機械特性.第3部分:不受拉應力的止動螺A bearing surface transmits the interaction between an arch dam and its foundation, the strength of which directly affects the constraint of the bedrock to the dam, and thus affects the stress and deformation of the dam. the influence is studied in this paper with nonlinear finite element method, as an example, for a high arch dam in design. the results show that the influence on stress is only limited within the local area near the bearing surface, larger on the maximum principal tensile stress than on the principal compression stress, and the decrease of the strength does not cause unlimited increase of the maximum stress. the influence on the displacement of the top of the dam is smaller than that of the bottom of the dam, especially the relative downstream displacement. at the lower strength of the bearing surface, the relative downstream displacement at the bottom of the dam increases with the decrease of the strength
建基面是傳遞拱壩和基巖相互作用的紐帶,它的強度直接影響基巖對壩體的約束,從而影響壩體的應力和變形.採用非線性有限單元法,以設計中的某高拱壩為例,分析建基面強度對壩體應力和變形的影響.結果表明建基面強度對壩體應力的影響僅限於建基面附近的局部范圍,對最大主拉應力的影響要大於對最大主壓應力的影響,建基面強度的降低不會無限地增大壩體的應力數值;建基面強度對壩頂位移的影響較小,但對壩底位移(尤其是順河向相對位移)的影響較大,當建基面強度較低時,壩底順河向相對位移隨建基面強度的降低而增大The bottom roller and sub - bottom roller of hcr is calculated about its equivalent stress, contact stress and the distributing of pulling - stress along the inside track of hcr. also, effects of hollowness and pinch fit are analyzed on bearing stress and rated load
主要計算預負荷空心圓柱滾子軸承的最底部滾子和次底部滾子的等效應力、接觸應力和滾子內圈拉應力的分佈情況,分析滾子空心度和過盈量對軸承應力和額定載荷的影響。Standard test method for tensile stress - strain of carbon and graphite
碳和石墨抗拉應力的標準試驗方法The maximal tension stresses in surface and base between induced crack have been obtained by parametric analysis
通過結構參數分析掌握了預切縫間面層、基層中最大拉應力的分佈規律。Secondly, another 2d - fem analysis is made on a practical engineering of foundation pit excavation supported by soil - nailed system. then the different distributions of tensile stress, shear stress, plastic failure zone and horizontal displacement obtained by analysis for non - supporting and soil - nailed supporting step - by - step excavation are compared with each other. some conclusions about mechanism of soil - nailed supporting system are reached from above comparisons
在計算方法與本構模型研究中,重點對ansys中基於drucker - prager彈塑性本構模型的巖土體d - p材料作了分析,指出了此材料沒有對拉應力限制的缺陷並提出在計算過程中必須密切注意拉應力的大小及分佈;同時提出了基坑分步開挖與支護的數值模擬過程。Testing of wood ; determination of ultimate tensile stress parallel to grain
木材試驗.與木料紋理平行的極限抗拉應力的測定It has been shown that, when the direction of stress parallels magnetizing direction, barkhausen signal increases with the increasing of tensile stress, decreases with the increasing of compressive stress
結果表明,應力方向與磁化方向平行時,巴克豪森信號值隨拉應力的增大而增大,隨壓應力的增大而減小。Influence of temperature control on tensile stresses in arch dams
溫度控制對拱壩拉應力的影響The influence of relative cover c / d on corrosion failure model and maximal principal tension stress, the position of rebar located, corrosion of adjacent rebar induced additional stress are considered in this model
模型中考慮相對保護層厚c d對銹脹破壞形態和鋼筋周圍混凝土最大主拉應力的影響,並且考慮了鋼筋位置不同以及相鄰鋼筋銹蝕產生附加應力的影響。分享友人