uniform stress 中文意思是什麼

uniform stress 解釋
均布應力
  • uniform : adj 1 (形狀、性質等)一樣的,同一的;一致的;相同的。2 一貫不變的;始終如一的。3 規格一致的,均...
  • stress : n 1 壓力,壓迫,緊迫,緊張。2 【語音】重音;重讀;【詩】揚音;語勢,著重點。3 重要(性),重點,...
  1. If magnitude of expansive stress caused by adscititious magnesia is too large, or its distribution is not uniform, it trends to damage the structure of cement concrete, and then affect seriously dam durability

    如果氧化鎂混凝土膨脹量過大或不均,都將破壞水泥混凝土結構,影響耐久性,甚至局部崩裂造成安全事故。
  2. The relation of ?to the average value of may be assumed to lie between the aforementioned relations for uniform plane stress and uniform plane strain.

    而和平均值的關系式可以認為處于上述的均勻平面應力和均勻平面應變的兩個關系式之間。
  3. Conclusion when m / f is about 8 and two equal forces are added on both buccal and palatal sides, there are the uniform stress in the molar and controlled translatory movement

    結論下頜第二恆磨牙近中移動時,頰舌側同時加力並且施加適當的近遠中向的力矩,有利於牙齒的整體平行移動。
  4. In this thesis, studies are focused on as follows : ( 1 ) based on analyzing the general transfer - matrix, the conception of the generalized double layer soil model is proposed, and the transfer - matrix ( r ) of half - infinite elastic mass is introduce - d to the analytic expressions of stress and settlement under the uniform circular, rectangular and strip vertical loads in multi - layered soil ; ( 2 ) according to the analytic expressions of the additional stress and settlement under unifo - rm circular in multi - layered soil, rectangular and strip vertical loads, the programs are develop - ed to resolve and debugged. the results show that the programs are correct ; ( 3 ) through calculating the coefficient of additional stress on the central axis of uniform circ - ular vertical loads, under the corner point of the uniform rectangular vertical loads, and on the central axis of uniform strip vertical loads, and the settlement on the center of uniform circular vertical loads and uniform rectangular loads in double - layered soil, the characters of stress and settlement are discussed ; ( 4 ) a case, as an example, is studied with different calculation methods, such as traditional theory, fem. the results obtained are compared

    本文在已有研究成果的基礎上進一步開展了以下幾方面的研究: ( 1 )在對層狀地基傳遞矩陣法中的總傳遞矩陣分析的基礎上,提出了廣義雙層地基模型的概念,並把半無限體的傳遞矩陣r引入到多層地基在圓形垂直均布荷載、矩形垂直均布荷載及條形垂直均布荷載作用下附加應力與沉降的解析式中; ( 2 )根據多層地基在圓形荷載、矩形垂直均布荷載及條形垂直均布荷載作用下附加應力與沉降的解析式,編制了程序,調試通過並驗證了其正確性; ( 3 )通過對雙層地基圓形垂直均布荷載中心軸線上的附加應力系數和荷載中心沉降,矩形垂直均布荷載角點下的附加應力系數和荷載角點沉降及條形垂直均布荷載中心軸線上的附加應力系數進行的計算,探討了雙層地基中的附加應力與沉降特性; ( 4 )應用本文的層狀地基體系理論對一個工程實例進行了計算分析,並與傳統的計算方法的計算結果和有限單元方法的計算結果進行了對比分析,結果表明利用層狀地基理論計算更能反映地基中附加應力分佈的實際情況。
  5. While cyclic deformation experiment under constant strain control is performed in 400, the material shows the continuous hardening until cyclic invalidation. ( 3 ) back stress attained by kwl " s method is used to analyse the bauschinger effect during an incremental step cyclic test and cyclic deformation test under constant strain control, it is shown that back stress increases with increasing plastic strain and the numbers of cycle, and the back stress is uniform, regardless of tension or compression conditions. ( 4 ) as far as recrystallized zircaloy - 4 plate is concerned, the back stress in transverse direction is higher than that in rolling direction due to the higher schmid factor in rolling direction

    對于再結晶狀態的zr一4合金板材試樣來說, t方向(橫向)試樣的背應力要高於r方向(軋制方向)的背應力,原因在於r方向的schmid因子高於t方向的schmid因子; 400下, zr一4合金的背應力要明顯低於室溫下的背應力;含氫200pg / g的zr一4合金的背應力大小與無滲氫的zr一4合金背應力相比,無明顯區別;固溶處理后, zr一4合金的背應力大小發生了變化,在較高塑性應變下,背應力均高於固溶處理前的背應力。
  6. The work done in this paper is mainly as follows : ( 1 ) the wide beam should intrude to the wall at some length to make the flexural stress uniform along beam section width, thus make full use of the beam ' s bearing capacity and avoid the shear failure in the concrete joint. and it also prevents stress focus and concrete crack in the local shear wall

    關于寬梁與薄墻肢節點,可以得出以下幾點初步結論:寬梁應該深入墻肢一定的深度,以使寬梁截面的彎曲應力沿著梁截面寬度分佈均勻,充分發揮寬梁的抗彎能力,同時避免節點區混凝土的剪切失效,也避免剪力墻的局部因為受到的應力過大而拉裂。
  7. In the end, the mechanism of explosive accidents of lpg vessel under high temperature is analyzed. the major inducements of lpg vessel under high temperature are as follows : 1 ) sudden falling of pressure on valve opening ; 2 ) material strength falling of vessel wall, which is caused by high temperature of vessel wall ; 3 ) thermal stress that is caused by non - uniform temperature of vessel wall

    武漢理工大學碩士學位論文? ?論文最後分析了高溫環境下液化氣容器爆炸的事故機理,即高溫環境下液化氣容器爆炸的主要誘因為: 1 )閥門打開時的壓力驟降; 2 )容器壁溫度過高,導致容器壁的材料強度降低; 3 )容器壁的溫度不均勻引起的熱應力。
  8. The main results and academic contributions of the dissertation can be summarized as following : 1 ) for the difficulty to obtain the accurate analytical solution of the stress constraints around 3d cracks, detailed 3d fe analyses have been conducted to study the out - of - plane constraint factor tz around a straight through - thickness crack, a quarter - elliptical corner crack and a semi - elliptical crack embedded in an isotropic elastic plate subjected to uniform remote tension loading. the distributions of tz are minutely studied in the forward section of the cracks. strong 3d zones ( tz > 0 ) along the crack front were investigated despite the far field stress - free boundary conditions

    全文主要研究內容和學術貢獻如下: 1 .針對一般三維裂紋端部場應力約束準確解析的困難,對均勻拉伸載荷作用下各向同性彈性板中穿透厚度中心直裂紋、半橢圓表面裂紋和1 / 4橢圓角裂紋進行了大量詳細的全場應力三維有限元分析,首次全面分析了非穿透裂紋端部場三維影響區范圍,給出了不同形狀三維裂紋前沿離面應力約束因子tz的數值解,並結合k場平面解給出了非穿透裂紋端部應力場k - tz雙參數描述。
  9. Uniform bearing stress

    均勻支承應力
  10. On the basis of the important research project of the ministry of communications - the prevent and study of slope disaster in the project of beijing - zhuhai highway, the thesis developed the structure ' s design theory. in order to design more reasonable, the thesis propose the cohesion shear stress is unequal distribute at the anchorage zone. and it can be divided into two parts, the front function is uniform and the behind is exponential

    為了合理的進行工程設計,本文按彈塑性理論對預應力錨索錨固段的黏結剪應力進行了分析,將錨固段劃分為塑性變形區段和彈性受力區段兩部分,認為錨固段黏結剪應力為非均勻分佈,前段剪應力為均勻折減應力,後段剪應力為寸旨數變化應力,由此提出了相應的錨固段長度計算公式。
  11. The stress and working pressure on teeth of the staged nut in screw presses has been studied by fem method which proves that using staged nut in screw presses is helpful for improving the non - uniform distribution of stress and working pressure on the teeth and extending the working life of the screw

    摘要採用了有限元法對滑動螺旋壓力機的階梯式螺母進行了受力分析,研究了螺母螺牙應力及螺牙工作面的接觸壓力,並將階梯式螺母與普通螺母進行對比,認為螺旋壓力機中使用階梯式螺母有利於改善螺牙牙根應力軸向應力分佈不均和螺牙工作面的接觸壓力分佈不均的情況,從而提高螺旋工作壽命。
  12. This variation of stresses is due to the action of in - plane shear strain in the plate, which is termed “ shear - lag ”. stresses larger than the elementary bending uniform stress thus develop at the web - flange connection. an appropriate reduced “ effective width ” of the plate - with the uniform stress equal to the maximum longitudinal stress - has been widely used by engineers in conjunction with the elementary beam bending theory

    但實際上翼緣中剪切變形是不均勻的,由此導致正應力沿橋寬呈曲線分佈,從而引出了有效寬度的概念,即按初等梁理論的公式也能得與真實應力峰值接近相等的那個翼緣折算寬度。
  13. Results show that clamping angle dominated displacement of anchorage and failure mechanism : surrounding rock and soil compaction is induced by small clamping angle, instead, shear failure occurs in neighborhood soil of leading end of anchorage while clamping angle is big ; anchorage length influenced surrounding rock stress as nonlinear self - organization critical characteristic on interface ; anchorage size contribution to systemic primary monitor parameter is relatively uniform

    研究發現:夾持角控制著錨碇變位和破壞機理,夾持角過小時錨碇壓密圍巖土體,較大時錨碇前端附近土體則產生剪切破壞;錨碇長度影響接觸面圍巖應力量值,表現為非線性的自組織臨界特徵;錨碇體粗細對系統主要監控參數的貢獻相對均勻。
  14. The traditional level measuring methods can n ' t meet our demand because the subjective investigated is in such a poor systemic condition that the temperature is a little high and there ' s so many mill dust and steam there. in this article we perform systemic discuss and research against the dynamic level measuring method under special working condition on the basis of analyzing kinds of level measuring technique in and abroad. first we establish the pressure distribution mathematic model in storage bin and then deduce the mathematic relation between level height and the uniform stress on the bottom of the bin and designed a resistance compressive stress sensor used for the special condition and put forward a resoivement according to its zero excursion existing in practical use

    由於本研究系統被測對象環境溫度較高且潮濕,同時料倉中有大量粉塵及蒸汽,因此傳統的料位檢測方法不能滿足本測試要求。本文在分析國內外各種物位檢測技術的基礎上,針對特殊工況下動態物料高度的檢測進行了系統的探討與研究。首先建立了料倉中的壓力分佈數學模型,推導出料位高度與倉底均布壓力間的數學關系式,並據此設計了中溫電阻應變式壓力傳感器,同時對它在實際應用中存在的零點漂移等問題提出了改進措施,提高了傳感器性能,解決了上述特殊工況下動態物料檢測的技術難題。
  15. If self - weight stress is assumed to be uniform, the settlement will increase with the increase of the value of ratio cc / ck, or the level of loading, or the thickness of soil

    當假定自重應力為常數時, c _ c c _ k值、荷載和土層厚度的增加都會使沉降加大。
  16. As for non - uniform horizontal ground stress, it is realized generally by applying non - uniform pressure load on the lateral boundary / boundaries of the calculation model

    對于非均勻的水平地應力,一般是在計算模型的側面邊界上施加非均勻荷載來實現。
  17. The stress distribution is far from uniform in this stratified rock, the horizontal stress magnitude in hard rock layers is significantly higher the that in soft layers

    在軟硬相間的層狀巖體中地應力分佈很不均勻,應力大小與巖層硬度具有正相關性,硬巖中的水平應力大於軟巖的水平應力。
  18. Block wall is supposed as a uniform material and having same properties in every direction, and its relation of stress - strain adopts the model of zhejiang university structure lab. aided by ansys, eight types of walls under level load have been nonlinear analyzed and achieved the cracking, extreme load, cracks location and form respectively. the simulation results show great agreement with experiment results

    將砌塊砌體材料做勻質、各向同性處理,採用浙江大學結構工程研究所推薦的砌塊砌體非線性本構關系,利用ansys中的混凝土單元solid65模擬砌塊砌體和鋼筋混凝材料,共對八種類型墻體進行了非線性有限元模擬分析,分別得出了各種墻體的初裂、破壞荷載、裂縫開展情況、應力、位移等結果,初裂、破壞荷載和實測值相差不大,模擬的初始裂縫位置、形式以及裂縫開展情況與實驗結果比較吻合。
  19. The influence of shearing deformation causes the non - uniform stress in the wing plate of the box girder, especially the cantilever box girder

    摘要剪切變形的影響使得箱形梁的翼板中出現應力不均勻現象,尤其是懸臂箱形梁剪力滯現象。
  20. Based on unified strength theory, the boundary line equation of surrounding rock mass plastic zone under non - uniform stress field was deduced, and it can be used to pre - estimate the dimensions and shapes of underground tunnel ' s plastic zone with different coefficients of horizontal pressure

    摘要基於統一強度理論,推導出非均勻應力場的巷道圍巖塑性區邊界線方程式,可用於預測不同側壓系數時地下深埋隧洞的塑性區大小及形狀。
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