buckling stress 中文意思是什麼

buckling stress 解釋
挫曲應力
  • buckling : 彈性屈服
  • 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. The numerical results show that the elephant foot bulging is in fact buckling failure which is caused by the overcritical compressive stress rather than intensity failure

    分析表明：立式儲液罐罐壁「象足」變形主要是由罐壁縱向壓應力超過臨界應力而產生的局部屈曲破壞，並非強度破壞。
  2. On the basis of this, the paper makes a great deal of calculation and analysis in this part, different parameters " effect and stress gradient are included. local buckling coefficient and the efficient width calculated formula are provided and look forward to take a reference to the redaction of the specification

    本文對此內容進行了較為深入的研究，考慮了多個參數的影響，對各種應力比作用下的楔形腹板的屈曲及屈曲后強度進行了計算分析，得出了考慮翼緣相關作用的楔形腹板屈曲系數及有效寬度系數的計算公式，以期為規范的修訂提供參考。
  3. In the hogging condition, double bottom and the side shell remain the ultimate bucking strength, deck and upperwing tank remain the yield stress, and the other parts keep elasticity. then the key to calculate the ultimate strength of ship hull girders is to ascertain the ultimate bucking strength of the stiffened panels. in this regard, the developed formulation is designed to be more sophisticated than previous simplified theoretical method for calculating the ultimate strength of stiffened panels under combined in - plane bending and lateral pressure. fabricatio n - related initial imperfections ( initial deflections and residual stresses ) are included in the panel ultimate strength calculation as parameters of influence. all possible collapse modes involed in collapse of stiffened panels, including overall buckling collapse, column or beam - column type collapse, tripping of stiffeners and local bukling of stiffened web are considered

    確定了船體梁整體破壞時的剖面應力分佈之後，關鍵在於確定板架的極限屈曲強度。本文充分考慮了在縱向彎曲、橫向壓力作用下加筋板可能發生的幾種破壞模式，即板架的整體屈曲破壞、樑柱形式的破壞、筋的側傾、腹板的屈曲並同時考慮了初始焊接殘余應力、初撓度的影響，使其更精確的計算加筋板的屈曲強度。對于加筋板中加強筋腹板的局部屈曲，採用解析法推導出筋的腹板的撓度方程及其邊界條件，求解相應的方程，從而計算出腹板的局部屈曲應力。
  4. In the formula, our experience in structural strength design and the experimental results are considered. and such factors are also considered as differences in materials of the skin and the reinforcer, effects of bending, torsion, stretching and offcenter of the reinforcer. furthermore, through post - buckling stress analysis of the skin, it is shown that even low stress level will result in buckling of the skin, but the skin still has loading capacity

    在總結過去結構強度設計和試驗分析的基礎上，應用扁殼理論，在廣義力與廣義應變關系中考慮了蒙皮與加筋不同材料以及加筋的彎曲、扭轉、伸縮和偏心等的影響，推導出適合於工程應用的加筋殼結構軸壓屈曲臨界載荷的計算方法;並通過對薄壁結構蒙皮后屈曲應力分析，說明蒙皮在很低的應力水平時就出現失穩現象，但失穩后的蒙皮仍具有一定的承載能力。
  5. In the analysis of the elastic local buckling strength of the stiffener ' s web, the elastic critical stress is analytically derived by solving the characteristic value problem involving the governing differential equation under the corresponding loading and boundary conditions

    對于加筋板中加強筋腹板的局部屈曲，則用解析法推導出筋的腹板的撓度方程及其邊界條件，求解相應的方程，從而計算出腹板的局部屈曲應力。
  6. In active code for design of steel structures, axially compressed members are calculated not as torsional - flexural buckling but as flexural buckling with equivalent slenderness ratio, residual stress and initial geometry imperfection are also taken into account as flexural buckling

    我國現行鋼結構設計規范（ gb50017 ）採用換算長細比的方法將彎扭失穩等效為彎曲失穩，其殘余應力和初始幾何缺陷均按彎曲失穩考慮。
  7. The buckling of a plate mostly occurs in elastic regime with high strength steel adopted widely, and the plate reaches ultimate strength due to losing capacity when equivalent stress where maximal in - plane compressive stress appears arrives at yield in post - buckling phase

    隨著高強度鋼的廣泛應用，板格屈曲大部分發生在彈性范圍內，在後屈曲階段當板格最大面內壓縮應力處的等效應力達到屈服極限時，板格迅速卸載，此時板格達到極限強度。
  8. For each stiffener element, the average stress - strain relationship under axial load as a beam - column in the flexural buckling mode is derived based on the approximate method, proposed by gordo and guedes scares

    這種方法對傳統船型是有效的，但是它不能給出船體極強度的真實估算，而且當應用於非傳統船型時其計算結果不能令人滿意。
  9. A new approach to truss topology optimization, i. e topology group concept, is introduced. it may consider many kinds of constraint, including stress, euler buckling, static displacement and frequency constraints

    提出了桁架結構拓撲優化設計的一種新方法?拓撲組方法，可同時考慮應力，失穩，靜動位移響應以及固頻約束。
  10. Local buckling capacity of steel composite beam subjected to combined bending, shear and patch loading is one of key problem in steel structures design. the computational formula for local stability of web was based on the assumption of infinite - elastic perfect plates in the steel structures design code ( gbj17 - 88 ). but in the revised code ( gb50017 - 2003 ), this formula was made big change with reference to british code ( bs5950, partl ) and australian code ( as4100 ), the related research result of our country was included as well. in the modified formula, influence of early geometric imperfection and elastic - plastic buckling stage were considered, which is compatible with both actual circumstance of engineering and the strength formula of beams under bending stresses ( considering partial plasticity of the section ). in this paper, the preceding problem is deeply analyzed and studied, considering the effects of various geometric parameters and stress combinations on buckling critical stress of web, the revised local buckling correlative formula for transverse and longituded stiffened web panels under combined stresses is analyzed and verified by finite element method

    組合鋼梁腹板在彎、剪及局壓復合應力作用下的局部屈曲承載能力是鋼結構設計中需考慮的問題，新的《鋼結構設計規范》 （ gb50017 ? 2003 ）對此部分內容作了較大改動，原規范中關于腹板局部穩定的計算公式是基於無限彈性的完善板假定；新的規范則參考了英國規范（ bs5950 part1 ）及澳大利亞規范（ as4100 ）並結合我國相關研究成果，考慮了屈曲進入彈塑性階段以及初始幾何缺陷的影響。這不僅與工程實際情況相符，而且也與鋼梁在彎曲應力作用下允許截面部分進入塑性的計算公式相協調。
  11. The use of intermediate stiffeners in the compression plate may significantly increase elastic buckling stress and ultimate capacity of the plate. however, the behavior of the plate with intermediate stiffeners would be complicated

    在受壓板件中設置中間加勁肋可以顯著提高板件的彈性屈曲應力和極限承載能力，但是也使得板件的屈曲行為變得復雜。
  12. The discrete stiffener solution and orthotropic plate solution are used for analyzing the buckling behavior of intermediately stiffened plates theoretically in this paper. thus, closed - form solution of critical buckling stress and required adequate stiffening rigidity of the stiffener is obtained

    本文分別用分離加勁肋法和各向異性板法對縱向中間加勁板件的屈曲性能進行了理論分析，得到了屈曲應力和理論充分加勁剛度解析表達式。
  13. The effects for buckling stress of the changes of the stiffener rigidity, shape, dimension, as well as its location are analyzed in this thesis

    論文對帽形中間加勁肋的剛度、加勁肋的形狀、尺寸和位置變化對中間加勁板件屈曲應力的影響作了分析研究。
  14. The cold - formed square hollow section columns are widely used in various structures such as building structure, trusses, space frames and offshore plates etc. this paper is mainly doing the research on load carrying capacity of the cold - formed square hollow section columns under axial load, the paper includes the following main contents : ( 1 ) an elastic buckling stress for cold - formed square hollow section is presented by finite element analysis, and is compared with the result given by classical elastic buckling theory ; ( 2 ) the elastic - plastic non - linear behavior of the cold - formed square hollow section columns analyzed by ansys is presented ; ( 3 ) by using material model, and geometry nonlinear analysis, the cold - formed effect to stub columns of cold - formed square hollow section is studied ; ( 4 ) by using an material model, the geometry nonlinear analysis, the influence of initial geometrical imperfection to stub columns of cold - formed square hollow section is also analyzed ; ( 5 ) the load carrying capacity of the cold - formed square hollow section columns, which are including the cold - formed effect and influence of initial geometrical imperfection is analyzed by non - linear finite element, and the theoretical analysis results are compared with the results of experimental study and the results calculated by specification gb50018 - 2002

    冷彎方管作為軸心壓桿廣泛用於房屋結構、桁架、網架、塔架以及海洋平臺等結構中，本文主要研究軸心受壓冷彎方管的承載力性能，內容主要包括以下一些： （ 1 ）對冷彎方管的彈性臨界應力進行有限元分析，並與經典理論結果進行對比，以驗證有限元程序的適應性； （ 2 ）闡述冷彎方管採用有限元彈塑性非線性分析理論及應用ansys軟體的非線性分析方法； （ 3 ）採用彈塑性模型，考慮幾何非線性及材料非線性，對不同寬厚比的軸心受壓冷彎方管柱的冷彎效應進行有限元非線性分析研究； （ 4 ）考慮冷彎效應對屈服應力的影響，對不同寬厚比的軸心受壓冷彎方管短柱在不同初始變形下的承載力性能進行有限元非線性研究； （ 5 ）考慮冷彎效應、幾何初始變形，對不同長細比和不同寬厚比的軸心受壓冷彎方管長柱的承載力性能進行有限元非線性研究，並與試驗結果以及我國現行規范gb50018 ? 2002計算結果進行對比分析。
  15. Theory analysis in this paper pointed out that the flexural - torsional buckling is the usual form of t - section steel. so the slenderness ratio of flexural - torsional buckling should be used when people give out the b / t ratio by the " equal stability " conception. initial stress, defects and tangent modulus are include in the deduce of the paper to get a rational b / t ratio

    通過理論分析指出軸心受力剖分t型鋼整體失穩以彎扭屈曲為主，所以在運用「等穩定」方法確定腹板寬厚比限值時應與桿件的扭轉長細比「掛鉤」 ，並以此為出發點考慮殘余應力、初始缺陷，應用切線模量推導出了較為合理的腹板寬厚比限值公式。
  16. In the end, the steel - reinforced concrete arched bridge ( chun ' an weiping bridge ), which span is 198m, is analyzed by the proposed three - dimensional nonlinear finite element method and also those gained conclusions are directly adopted in the computation. the universal stability coefficient and nonlinear buckling stability coefficient of the bridge are respectively computed, in which the dead load and the live load are assembled according to the criterion. on the other side, the regularities of creep deformation and subsidiary stress of the investigated bridge under the first - stage dead load are carefully researched

    最後，將本文所提出的三維非線性分析方法及其主要研究成果直接應用於198m跨勁型骨架式鋼管混凝土拱橋「淳安威坪大橋」的分析計算中，對該橋在最不利恆載和活載組合下的一般特徵值失穩系數和非線性屈曲系數進行了對比研究，並對一期恆載長期作用下該橋的徐變變形、附加應力以及截面應力、應變重分佈規律分別進行了深入研究。
  17. In the analysis of the elastic tripping of the stiffener, the critical stress under this mode of failure is derived by using the energy method and the principle of least potential energy. in the analysis of the elastic overall buckling of stiffened plates, attention is focused on global buckling, and local buckling effects are neglected

    對于加筋板中筋的側傾失穩，則通過能量法推導加強筋側傾失穩時的總勢能泛函，利用最小勢能原理求解出此失穩模式下的臨界應力。
  18. The second part involves the coupled design optimization of thermal structures, which takes the thermal displacement, thermal stress, thermal buckling and thermal vibration into account, hi this part, the main contents are the theory and computational schemes of sensitivity analysis, the techniques of software design and the algorithms of design optimization for the coupled system. the research work will be introduced with the following chapters

    這里的耦合有三方面的含義： 1 ）在系統分析中考慮熱傳導對結構分析的耦合作用； 2 ）在靈敏度分析中，針對直接法和伴隨法兩種計算格式分別考慮了熱傳導對結構或結構對熱傳導的耦合作用； 3 ）在優化設計時，優化模型中同時考慮了熱傳導約束和結構響應約束的共同作用。
  19. The effects of lateral pressure and plate buckling mode are taken into account. when the tripping taking place, average stress - strain curves begin load shedding according to empirical formula

    主要區別在於所用的單元性能曲線有所不同，以及對初始變形、殘余應力和側向載荷等影響因素的處理方法也各不相同。
  20. By selecting polynomial displacement function, buckling analyses for isotropic, orthotropic and angle plying laminated plates with built - in symmetric delamination are made. finally, transfer function method is adopted to three - dimensional stress analysis of laminated piezoelectric cylindrical shell. the sensing and actuating effects of three - layered piezoelectric cylindrical shell are presented

    採用傳遞函數方法對正交各向異性有限長簡支壓電層合圓柱厚殼進行了三維應力分析，並對三層壓電圓柱殼的傳感效應和作動效應進行了分析。
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