彎應變 的英文怎麼說
中文拼音 [wānyīngbiàn]
彎應變
英文
bending strain-
Based on the generalized variational principle of the modificatory variables and substituent shearing strain field interpolation of the bending theory of the mindilin plate, this paper brings up the nine - node mixed plate bending element and adopts the sap2000 ? a large - scale finite element analysis programs. by the examples, we find the precision of the method is satisfying
在對轉換層厚板進行局部有限元分析時，本文提出了基於mindlin中厚板彎曲理論的修正的二類變量廣義變分原理和替代剪應變場插值方法的九節點厚薄板通用的板彎曲單元，並採用了sap2000有限元程序。Lastly the above stiffness matrix, the nodal variables of which are the dual of stress functions, is replaced by a new one with simple displacements vector regarded as unknown. such finite element satisfies homogeneous equilibrium equations and can pass the patch test as long as the original plane elasticity element can pass the corresponding patch test
所得到的板彎曲單元在單元內部滿足齊次平衡方程，並且只要原始平面彈性單元能通過常應變分片試驗則轉換得到的板單元一定能通過常曲率分片試驗。Here the hsc of sompa is achieved through adding super - effective water reducer, fined slag and silicon fume, and decreasing the water / cement ratio. by varying the area ( spacing ) of tension bars, compressive bars, vertical links and distribution steel and embedding steel fiber and polypropylene fiber we try to improve the behaviors of reinforced high performance concrete one - way spanning slabs in bending, so that its ductility be greater than 5. with the same arrangement of steel the width of bending member is varied to observe the effect of the width / depth ratio on the ultimate compressive strain of concrete
通過變化受拉筋含筋率和受壓筋、箍筋（鉤筋、分佈筋）含量，或摻加纖維使之成為鋼纖維高強混凝土（ sfrhsc ）和聚丙烯纖維高強混凝土（ pfrhsc ） ，對高強混凝土雙筋截面梁、板的受彎性能進行了試驗研究，試圖改善高強混凝土受彎構件的延性，使其延性比大於5 ；並在相同配筋情況下，通過變化截面寬度，研究了高強混凝土受彎構件的寬高比對壓區混凝土極限應變的影響；並對試驗構件的裂縫發展情況進行了觀測。Abstract : the therortical calculation of the bending stress of the root and experimental stress analysis on the modified profile and the standard involute tooth profile were made with the finite element method and the electric resistance strain film method. this indicated that the modified profile was supe rior to the standard involute profiles in terms of the bending strength
文摘:分別用有限元和電阻應變片法對修形齒形和漸開線齒形進行齒根彎曲應力計算與實驗應力分析.結果證明在彎曲強度方面修形齒形比標準漸開線齒形更優越Here we obtain the strain compatibility method ande equilibrium of forces and concepts of fracture mechanincs, they can be used to predict the ultimats strength in flexure that can be achieved by such elements, given the cfrp cross - sectional area, or conversely, the required cfrp cross - sectional area to achieve a targeted resisting moment of rehabilitated flexureal elements
Cfrp加固梁在承受彎曲荷載時的破壞是鋼筋屈服后碳纖維斷裂和鋼筋屈服后混凝土壓碎。本文通過應變相容方法和對破壞機理的定義，由給定的cfrp橫截面積預測加固梁的極限彎曲強度；或者相反，在已知加固梁的極限彎曲強度時可以求出所需的cfrp橫截面積。It is determined that with accurate knowledge of the complete stress - strain curve of concrete in compression, steel in tension, and with an iterative computerized non ? linear method, it is possible to predict the entire moment - curvature, moment - flexural rigidity and axial rigidity relation ship of a cross - section of a structure member
可以確定，只要知道混凝土受壓和鋼筋受拉的完整的應力應變關系，採用選代的非線性計算方法，就有可能預測結構截面彎矩一曲率、彎矩一彎曲剛度和軸向剛度的關系。Columns under axial compression and biaxial bending. in the beginning of the paper, it summarized the history and the actuality of the nonlinear analysis of special - shaped columns and the capability of the sliding of reinforcement anchoring. on the basis of related papers, the full path of stress - strain relation of concrete and the sliding of longitudinal reinforcement anchoring are all considered
本論文主要內容是對鋼筋混凝土異形截面雙向壓彎柱（包括l形、 t形、十字形柱）進行非線形全過程分析，首先綜述了異形柱構件非線性分析以及粘結滑移性能研究的歷史與現狀，在有關文獻基礎上考慮了受拉縱筋和周圍混凝土的粘結滑移和混凝土應力?應變關系曲線的下降段。The content of the paper is nonlinear analysis of complete response process for t, l - shaped and " + " shaped section r. c. columns under axial compression and biaxial bending. on the basis of related papers, the full path of stress - strain relation of concrete and the sliding of longitudinal reinforcement anchoring are all considered, simultaneously, the restriction effect for concrete by thickening of stirrups is also included
本論文主要內容是對鋼筋混凝土異形截面雙向壓彎柱（包括l形、 t形、十字形柱）進行非線形全過程分析，在有關文獻基礎上考慮了受拉縱筋和周圍混凝土的錨固滑移和混凝土應力?應變關系曲線的下降段，同時考慮到在箍筋加密區箍筋對混凝土的約束影響。By means of stress - strain feature of upper and lower strata of fold neutral plane in the course of longitudinal fold formation, the differences between the upper coal bed and lower coal bed of fold neutral plane are analyzed from the coal thickness, coal structure, coal body structure, coalbed gas occurrence and diversities etc., revealing the cause of these appearances
摘要利用縱彎褶皺變形中中和面上下巖層的不同應力與應變特點，分析了處于褶皺中和面上下各煤層在背斜與向斜部位煤層厚度、煤層構造、煤體結構及煤層瓦斯的賦存規律與差異性，揭示了這些現象產生的原因。The research shows that : 1 ) the ductility of the hsc bending members constructed is much greater than 5 ; 2 ) increasing the vertical links and distribution steel can increase the deflection under ultimate moment ; 3 ) with appropriate compressive bars, vertical links and distribution steel the increase of moment after yield and the decrease of moment under ultimate moment can be ignored, so the ductility of the hsc bending member is much larger ; 3 ) the width / depth ratio of hsc bending member has no obvious effect on the ultimate compressive strain of concrete ; 4 ) the method used here to calculate the deflection is applicable ; 5 ) the location of crack coincides with the location of vertical links and distribution steel ; 6 ) the bending property of the hsc structure under the blast load can meet the demand of protective engineering
研究表明：本文研究的梁、板構件的延性比遠大於5 ；增加箍筋（鉤筋、分佈筋）含量，可以提高壓區混凝土剝落時的撓度；在適當的受壓筋、箍筋（鉤筋、分佈筋）含量下，可以忽略壓區混凝土剝落瞬間的承載力下降，從而大大提高構件的延性；受彎構件的寬高比對壓區混凝土極限應變的影響不明顯；受彎構件的裂縫間距受箍筋（鉤筋、分佈筋）的布置影響；文中所用的承載力和變形計算方法是可行的。化爆試驗表明，高強混凝土構件的動載抗彎性能能夠滿足防護結構的要求。A developable surface is one that can be made from a flat sheet without any in-plane strains.
可展曲面是一個可以由平板在不發生任何面內應變的條件下彎成的曲面。Along with the progress of drilling technology, many new types of bha such as steering motor assembly, dropping assembly with eccentric bend sub, dropping assembly with flexible connection are developed based on common building, dropping and holding assemblies. for using these bha, a new mathematical model is put forward for 3d static analysis of these types of bha under small deflection. and its weighted residual solution is given. the mathematical model includes ( 1 ) differential equations ; ( 2 ) boundary conditions at drill bit, stabilizer, bend angle, diameter change, tangential point and borehole wall ; ( 3 ) lateral forces and deflection angles of bit. the software based upon this method runs well
為了更好地應用各種新鉆具，建立了適用於對普通下部鉆具、導向鉆具、帶偏心彎接頭和柔性接頭的下部鉆具進行三維小撓度靜力學分析的數學模型，包括（ 1 ）微分方程； （ 2 ）鉆頭、穩定器、彎角、變截面、切點和井壁的邊界條件； （ 3 ）鉆頭的側向力和鉆頭轉角.給出了該模型的加權余量解.用該方法編寫的軟體應用效果良好Abstract : experimental researches on normal section ultimate fle xural strength of prestressed reverse - rib - slab with excessive steel bar were m ade, and according to chinese norm ( gbj10 - 89 ) and american norm ( aci ) in which s train harmony analysis method was adopted, its ultimate strength was calculated, these make us further realizse the ultimate flexural strength of prestressed r everse - rib - slab with excessive steel bar
文摘:通過疊合結構中預應力超筋倒肋薄板正截面極限承載力的試驗研究，分別採用規范gbj10 - 89中的受彎構件、偏心受壓構件的計算公式及美國aci規范中的應變協調分析方法計算了極限承載力，從而更清楚地認識了配有高強鋼絲的超筋倒肋板的極限承載力計算問題。In the first part of this dissertation, theory of fracture mechanics of the frozen soil has been presented. a general strength theory based on fracture mechanics was proposed, and the validity of the theory using in frozen soil was discussed. the fracture toughness values for different kinds of cracks extension were determined, such as the plane strain fracture toughness for mode i cracking ( kic ), fracture toughness for mode cracking of frozen soil and the intersection of frozen soil and concrete
論文第二章為凍土斷裂力學的基本理論，包括斷裂力學在凍土研究中的工程適用性、條件適用性、平面應變斷裂韌度測試的適用條件等，給出了凍土斷裂韌度k _ （ c ） 、 k _ （ c ） 、 -型復合斷裂測試的基本原理及試驗方法，並基於weibull脆性破壞理論推導了凍土三點彎曲試樣k _ （ c ）尺寸效應系數，為後面的工作提供理論基礎。The main results show that : ( 1 ) the mechanism of laser bending is very different from that in bending with hard tools. ( 2 ) the bending angle is varied along scanning direction, and there is a deformation wave in the process. ( 3 ) the effects of sheet length on bending can be neglected while the length is more than 10 times of thickness. ( 4 ) the sheet width has much higher influence on the bending process
分析發現：激光彎曲成形時板料的應力狀態與機械折彎時有根本不同；當激光束沿直線單向掃描時，板料兩端的彎曲角度不同；板料的長度大於10倍板厚或5倍光斑尺寸時，板長對彎曲角度的影響不再顯著；沿掃描方向，距離光斑中心3倍光斑尺寸以外的區域，仍然對彎曲變形量產生影響。Considering different soil spring models for vertical fault movement and horizontal fault movement, two damage cases of pe pipeline in ji - ji earthquake have also been simulated. the large deformation of a buried pipeline under fault movement is investigated in the 4th chapter. to examine the inelastic behavior of buried pipelines, the parametric studies on pipe material property, diameter ( d ), diameter - to - thickness ratio ( d / t ), crossing angle ( ), as well as soil stiffness, have been conducted using a shell - spring fem method
對於0 p三90 」的情況，當斷層位移相對管徑還不是很大時（管子內的彎曲應變與軸向拉伸應變相差不大的情況） ，斷層附近管子變形形式與梁相似；當斷層位移相對管徑很大時（管子以軸向拉伸應變為主的情況） ，斷層附近的管子軸線變形為一圓弧，管子表現得像一條沒有彎曲剛度的索。Since the flexural waves in the plate would produce scattered waves when they propagated through the flaw of a plate, the measured signals of a strain gauge contented the direct waves propagated from the impact source and the scattered waves propagated from the flaw
藉由小波轉換進行訊號的時頻分析，進而求得彎曲波由沖擊點至各應變規的波程時間，並計算出彎曲波在各頻率中的波群速度。The paper on the basis of the study on the control of the changing slope curve paving in theory, through the study on the responses of the screed to different input signal in condition of the erected string, the controller of the transverse gradient and the floating beam on the spot experimentations, and through the analyzes the three paving design method in theory and the experimentation, on through the analyzes the three paying design method in theory and the experimentation data, provides some material solving measures to solve the changing slope curve paving
摘要根據彎道變坡攤鋪控制特性的理論研究，在工程實際中採用掛線法、橫坡控制器和浮動均衡梁進行了不同輸入激勵函數下熨平板響應的試驗研究，並通過對這3種攤鋪設計方法的理論和試驗數據的分析，提出了解決彎道變坡攤鋪的具體措施。Testing of leather ; determination of the stress - strain behaviour during vaulting and bursting test
皮革的檢驗.彎曲和爆裂試驗中應力-應變性能的測定Design the configuration parameter of the electromagnets using magnetic circuit theory, and check the temperature increase of the electromagnet. and design a power device using igbt with electric and electron theory. it can supply the electromagnets excitation current which changes regularly on a given rule
對于彎扭矩檢測系統，運用應變儀的原理，在試件上的合適位置加貼應變片並組成惠斯登全橋差動電路，檢測出實際加載在試件上的彎矩和扭矩的大小。分享友人