back stress 中文意思是什麼

back stress 解釋
反向應力
  • back : n 1 背，背部；背脊；背面，反面；背後，後部，後面，裏面。2 （指）甲；（刀）背；（手）背；（書）背...
  • 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. Hyperbola model of mgo - mixed concrete ' s autogeny deformation, especially deduce of the model ' s parameter and building process of the model are analyzed in detail. ( 2 ) calculating method of autogeny deformation and creep are discussed. based on these, timely - simulation theory of dam body ' s temperature field stress field and pre - process back - process method are mainly studied

    （ 2 ）對mgo混凝土的自生體積變形及徐變變形的計算方法進行了探討，在此基礎上，重點研究了壩體溫度場和應力場實時模擬的原理以及前後處理方法。
  2. Theoretical analysis and computing the stress of abs automobile braking in front and back axletree

    汽車制動前後軸的受力分析與計算
  3. As the balancing platform tends to make the barycenter move backward, a more balancing stress distribution under the wall, a higher and steadier wall can be achieved. furthermore, the resupine back of the downward wall not only works reasonably, but also can reduce the amount of excavation and filling obviously. so gravity retaining walls with balancing platform are applied heavily

    衡重式擋土墻因具有衡重臺使墻身重心后移、墻底應力趨于平衡，可提高擋土高度、增強墻體穩定性；且仰斜式下墻不僅受力合理、還可減少開挖與回填量等優點而被大量採用。
  4. Through the analysis we found that the effect will become more obviously with the increase of thickness or width of superstratum and the decrease of the coefficient of foundation bed ; ( 3 ) anisotropy and nonlinear elastic f. e. m. model has been established and the effect of stress dispersion in compound two - layer foundation was analyzed on the base of the model. from the analysis we can conclude that the coefficient of subsidiary stress dispersion will amplify with the increase of thickness or width or stiffness of back - up coat ; ( 4 ) the formula which can be used in conventional calculation has been deduced for calculating the coefficient of subsidiary stress dispersion and it also has been affirmed to be reasonable through the checking calculation ; the whole theory of compound two - layer foundation has been brought forward in this paper and it ' ll enrich the theory of composite foundation

    針對以上問題本文做了以下一些工作並得到若干結論： （ 1 ）提出了「復合雙層地基」的概念，並通過工程實例證明此概念的提出有其合理性和必要性； （ 2 ）用彈性地基梁理論證實了復合雙層地基確有應力擴散效應，且擴散效應隨上覆硬層厚度、剛度的增加而增大，隨下臥層基床系數的增大而減小； （ 3 ）建立了非線彈性、各向異性有限元模型，並以此為基礎分析了復合雙層地基的應力擴散效應，得到附加應力系數隨加固層厚度、寬度、剛度的增加而增大的結論； （ 4 ）推導了可用於常規計算的復合雙層地基應力擴散系數公式，並代入工程實例進行了驗證。
  5. Back - analysis method and computing program of damage parameters by the curve of stress - strain by uniaxial tension and compression test was made out. 5. by the damage evolving relation proposed the flexural process of the trisection specimens of wet - sieved and fully - graded concrete was numerically simulation

    5 .根據本文提出的損傷模型和損傷參量演化關系，分別對濕篩混凝土和全級配混凝土試件進行了三分點加載數值模擬。
  6. 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。
  7. So it is very important to understand the cyclic deformation behavior of zircaloy - 4. in this paper, bauschinger effect of zircaloy - 4 with different metallurgical state at room temperature and 400 ? is investigated in an incremental step test and cyclic deformation test under constant strain control. bauschinger effect during cyclic deformation is described by using back stress, which is mainly responsible for bauschinger effect ; back stress is attained by using kwl " s method

    本文採用單試樣逐級加載循環變形和恆應變幅循環變形試驗，研究了不同冶金狀態、溫度、氫以及固溶處理下的zr - 4合金的bauschinger效應現象；種種結果表明，影響bauschinger效應的主要因素是背應力；本文正是從背應力的角度來分析各種狀態下zr - 4合金的bauschinger效應現象；背應力的計算主要通過使用kwl方法而獲得。
  8. The stress distribution of the back bearing pillar in blasting demolishing reinforced concrete frame structures

    鋼筋混凝土框架爆破拆除時后承重柱的應力分佈
  9. Another topic of this article is to try to find a proper overlay design method. by using elastic layer system ( els ), finite element method ( fem ), genetic arithmetic ( ga ) back calculation and efficacious thickness method, the paper puts forward four design methods. the results say that the position where the max stress appears is not the only one but varies with the thickness of overlay

    根據陜西省高速公路瀝青路面病害以及使用性能的實際情況，提出了代表彎沉值的計算方法以及下臥層模量的反演方法，在此基礎上利用彈性層狀體系理論、有限單元理論、遺傳演算法以及有效厚度法等理論對加鋪層厚度設計方法進行了研究。
  10. Abstract : the back - analysis on displacements may provide a new method for engineers responsible for the slope engineering design to choose mechanical parameters and some components of the initial stress

    文摘:位移反分析的提出，可望為邊坡工程設計工程師提供一個確定有關地層力學參數和某些地應力分量的新方法。
  11. At first in the condition of low - velocity impact it is discussed with the formation of ceramic smash cone angle on the base of quasi - statistic hertz and 3 a 6 y a c - theory. then using spherical stress wave reflection and transmission theory under the state of medium - high velocity the formation of spot in the ceramic back. finally the damage mechanism of ceramic suffered by the high impact is simply discussed

    首先，在低速撞擊的條件下，基於準靜態hertz的理論與薩布斯基理論，分析了陶瓷破碎錐角的形成；其次，在中高速撞擊條件下，利用球面應力波反射迭加理論，分析了陶瓷背面的層裂的形成；最後，簡單討論了高速撞擊下陶瓷的破碎機理。
  12. The meso - cenozoic evolution of bachu fault - uplift is closely related to its south and north subsiding foredeep. under the background of indian plate subducting under asia - europe plate, bachu forebulge was greatly affected by the development of southwest depression and awati depression. almost all of its structure reversed, and as a result of it, both of its south and north boundary migrated. according to its evolution history and its feature, the authors tentatively use both - side migration model to interpret the evolution of compound forebulge. since triassic, almost all the spheres above lithosphere synchronously became flexure. because transpressional stress field became increasingly strong, bachu forebulge continued uplifting and big faults formed. then, bachu uplift, as a whole, slipped upward along those big faults and showed migrating toward thrust zone in plane. in tectonic tranquility, the lithosphere bounded back and in consequence of it, bachu uplift slipped down and showed migration toward craton, at that moment negative inversion structures developed. while the forebulge migrated toward its south and north foredeep, it was very possible that locally extensional stress appeared in the forebulge

    在印度板塊向歐亞板塊俯沖的大背景下，巴楚前緣斷隆受西南坳陷和阿瓦提凹陷的影響，新生代時構造體制發生反轉，邊界向南北遷移。根據其發育過程特徵，作者用復合前緣隆起兩端遷移模式對復合前緣隆起獨特的構造發育史進行了解釋：即三疊紀以來巖石圈各圈層同步撓曲變形。隨著擠壓應力場的增大，巴楚隆起在撓曲基礎上不斷抬升，形成幾條大型斷裂帶。
  13. This paper looks back on the " qing dynasty palace culture " popular in recent cultural market, lays much stress on recounting the transformation of " the qing dynasty palace culture " from " dramatized interpretation " to " orthodox interpretation " in 2005

    摘要文章回顧了近年來文化市場中出現的「清宮文化熱」現象，重點敘述了2005年清宮文化由「戲說」到「正說」的轉變。
  14. Considering different microstructures and properties of metal of hardened layer and the core of back - up roller, the distributions of shear stress below surface and the contact stress between work roller and back - up roller of a four - high - mill were simulated with nonlinear fem

    摘要考慮軋輥表面淬硬層與其心部金屬材料組織性能的差別，採用非線性有限元方法對四輥軋機的工作輥與支撐輥間接觸應力及輥內剪應力分佈進行模擬，並將模擬結果與傳統強度校核方法進行了對比分析，研究了軋輥淬硬層厚度對輥間接觸應力的影響規律。
  15. Its main steps are as follows : ( 1 ) to determine the tensor of hydraulic conductivity of the rock mass near the ground ; ( 2 ) to back - analyzing of stress field ; ( 3 ) to predict the fissure aperture at different levels ; ( 4 ) to suppose the structure of fissure network not to vary with depth and to calculate the tensor of hydraulic conductivity of the wall rock

    其主要思想是，首先確定近地表巖體的滲透張量；根據地應力實測資料進行地應力場的量級反演；選擇適當的裂隙開度-應力模型，預測不同深度的裂隙開度；在裂隙網路結構不隨深度變化這一假定的基礎上，計算隧道標高的圍巖滲透性。
  16. Back stress effect

    背應力效應
  17. We reached the moon and came back, but we find it troublesome to cross our own stress and meet our neighbors

    我們可以往返月球，但卻難以邁出一步去親近我們的左鄰右舍。
  18. Taking the qian xue - sen ' s system of modern science and technology as background, this paper has expounded the meaning, way of and difficulty with the founding of systematology, looked back three stages of qian xuesen ' s systematology founding, investigated the present situation, problems and causes, and put forward some personal viewpoints on the different opinions about systemtology in the academic circle, proposing that for the development of systemtology it is necessary to further digest the non - linear mechanics, self - organization theory, cas theory, and so on and make creative conversion of their results with the description of the whole emergency of the system as the general goal and the stress imposed on the working - out of the intrinsic mechanisms and laws of the complicated big systems

    摘要以錢學森的現代科學技術體系為大背景闡述建立系統學的意義、途徑和難度，回顧了錢學森創建系統學的三個階段，考察系統學的現狀、問題及其成因，對學界某些歧見給出筆者的看法提出系統學的發展應該進一步消化非線性動力學、自組織理論、 cas理論等，並對其成果作創造性的轉換，以描述系統的整體涌現性為總目標，重在揭示開放復雜巨系統的內在機制和規律。
  19. When stress is ongoing - - such as the stress caused by money problems, bad relationships, or an overburdensome job - - this constant physical reaction can significantly raise your risk of colds, diabetes, heart disease, back troubles, and almost every other major health concern

    人在處于壓力中- -例如：由於金錢問題、不好關系或工作負擔太大- -不斷出現的身體反應會極大地提高感冒、糖尿病、心臟疾病、背部問題及每種主要健康問題產生的風險。
  20. Look back generally to elaborate the development and present situation of the stress - strain model of soil. according to a great deal of data of the test and research of zipingpu reservoir concrete faced rockfill dam ' s material, suggest the more reasonable stress - strain - volume change equation to contain strain softening, dilatancy ( shrinkage ) of the no viscous moraine and gravel. suggest the method to gain the model ' s parameter

    較全面回顧闡述了土體本構模型的發展和現狀，根據紫坪鋪面板堆石壩築壩料的大量試驗研究，提出相對合理的應力應變關系方程，以反映土體的應變軟化、剪脹性，並提出模型參數的求取方法，求取模型參數。
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