plane strain loading 中文意思是什麼
plane strain loading
解釋
平面應變加載-
The method for measuring the plane strain fracture toughness klc has been introduce to high polymer bonded explosives ( pbx ) by systematically studying technologies concerning the shape of specimen, the depth and its machining of crack, the loading rate, the measurement of critical fracture load, and the computation of klc, etc. the method has been used to test and study klc of three typical high polymer bonded explosives which are j2, jl, j3 respectively both at normal temperature and unmoral temperature
本文以高聚物粘結炸藥為研究對象，對測試高聚物粘結炸藥的平面應變斷裂韌度所涉及的樣品形狀、裂紋深度及裂紋制備、加載速度、臨界斷裂載荷p _ q的確定及平面應變斷裂韌度k _ （ ic ）的計算等方面進行深入研究，建立了較為完善的炸藥平面應變斷裂韌度測試方法。 -
Total of 14 dumbbell cfst columns were tested under eccentric loading, those with 6 specimens which concrete filled into the web space and those with 8 specimens which concrete not filled into it. experimental results indicate that, the portrait strain on the middle section of two type specimens keep on the plane with each loading. the maximum load of columns which concrete not filled into the web space is lower than those filled into it
試驗結果分析表明，兩組試件的中截面縱向應變分佈在不同的受荷階段基本能保持平面；腹腔內不填充混凝土的啞鈴形柱的極限承載力比腹腔內填充混凝土的啞鈴形柱的極限承載力略小，但差值不大，且這種差值隨著偏心率的增大而減小。 -
In this thesis, the stress intensity factors of top - down cracks caused by loading are calculated using three dimensional finite element model and compared to the results of plane strain model
本文採用三維有限元模型分析了荷載作用下自上而下裂縫尖端的應力強度因子，並與二維平面應變模型分析的結果進行比較。 -
3 ) the average - strain of cross - section still can be assumed to be keep - in - plane within the whole loading procedure ; the theoretical moment - curvatures obtained by the cross - section keep - in - plane is consistent with the experimental ones. 4 ) the analytical flexural bearing capacity and cfrp - strain are more accurate by assuming the concrete ultimate strain to be 0. 07 instead of 0. 0033 ; 5 ) limiting the cfrp - strain under 0. 01 is reasonable to evaluate the flexural bearing capacity of rc beams retrofitted with cfrp ; 6 ) the initial load is hardly influence the flexural bearing capacity of cfrp - strengthened rc beams
取混凝土的極限壓應變0 . 007代替0 . 0033進行計算的結果能更準確地評浙江大學碩士學位論文2004摘要價加固梁的抗彎承載力和cfrp應變; 5 .在計算cfrp加固梁的抗彎承載力時，限制cfrp的應變在0 . 01以內的措施是恰當的; 6 .梁所承受的荷載的大小對加固後梁的抗彎承載力影響不大。 -
After synthetically studying the effects of loading positions, rim thickness, circular pinion numbers and fillet radii of gear hob on root section stresses, a judging formula of plane stress and plane strain is proposed and verified, then 2d and 3d fem models are accurately established
系統探討了加載位置、輪緣厚度、周向齒數的確定方法，分析了滾刀頂部圓角對齒根應力的影響，提出了兩類平面問題的判據並予以驗證。
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