plastic torsion 中文意思是什麼
plastic torsion
解釋
塑性扭力-
This paper focuses on the research of the stress mechanism of the ribbed shell structure in statics, dynamics and under the explosive load on the basis of the engineering practice of cave depot of single aircraft. in this paper, according to the classical shell theories, the basic differential equilibrium of the ribbed shell structure and the finite element analysis of 3d rippled plate are established, in which the function of annular ribs reinforcement bars and 3d ripped steel plates are distributed in the range of the steel, and the functions along the longitude direction of tension, bending, and torsion are neglected ; applied with dynamic analytical theory, the dynamic model of ribbed shell structure and the analytical theory model of elastic - plastic are set up ; the triangle series method is used to solve the displacement and stress under the distributed load and the concentrated load of the ribbed shell structure
本文以軍用機場地面單機掩蔽庫工程建設為工程背景，首次對內襯三維波紋鋼板混凝土拱型復合結構的受力機理進行了靜力、動力和爆炸荷載的分析研究。根據將橫肋、鋼筋及三維波紋鋼板的作用均勻分佈在殼體范圍內的情況，忽略橫肋、鋼筋及三維波紋鋼板沿殼體母線方向的抗拉、抗彎及其抗扭作用，首次推導出了內襯三維波紋鋼板混凝土殼體的微分平衡方程，建立了有限元計算模型，並採用三角函數法，求解了三維波紋鋼板混凝土拱型復合結構在分佈荷載和集中荷載作用下的位移響應和應力響應，並與普通殼體進行了比較。 -
Third, a theoretic approach based on total theory of plasticity is for the first time applied to analyze elastoplastic torsion rigidity of the tubular, and the results are well proved by the test data. also for the first time, the plastic stability of the spiral skew stiffening shell is studied. it is shown in the experiments that there is the comparability between the stability of the members at plastic limit and that of the thin - shelled steel tubular with the spiral skew stiffening concrete rib
本文首次分析了扭轉作用下的螺旋斜向加勁殼的塑性穩定性問題，還根據試驗觀象的觀察，對構件在塑性極限時的狀態，簡化為內壁襯朽螺協剎向加勁混凝土肋的薄壁鋼管的塑性穩定問題，利用塑性殼體穩定理論進行了探討。 -
Perfectly plastic torsion
完全塑性扭轉 -
And the theoretical a nalyses done in this paper are listed below : first, the experimental data on the members of varied parameters under torsion demonstrate the general rule of the deformation while the tubular is under torsion. the paper establishes three phases of the deformation of the tubular under torsion, namely, the elastic deformation, the elastic - plastic deformation, and ultimate failure. through regression analysis, a simplified method is proposed for calculating the capabilities of the tubular under elastoplastic torsion, and the formulary for bearing value, is also recommended as a reference in engineering design
本文根據不同參數的構件受扭性能試驗結果，研究了該結構受力變形全過程的基本規律，提出了受鈕全過程的三個工作價段，即彈性變形階段，彈塑性變形階段和極限破壞階段，經分析回歸得到扭轉全過程彈塑性的簡化分析方法及承載力計算公式，可供工程設計參考；同時根據本文的彎扭試驗結果以及對離心鋼管混凝土構件進行的理論分析，推導了彎扭試驗相關承載力的關系。 -
Abstract : by the using of the theory of plastic mechanics, a calculated formula of ultimate strength of shearing stress is obtained for metallic materials with torsion of circular shaft, and the experimental results about low - carbon steel are given
文摘:利用塑性力學基本理論，建立了具有塑性屈服及強化特性金屬材料圓軸扭轉的剪應力強度極限的計算公式，並給出了低碳鋼剪應力強度極限的處理結果 -
To obtain large bulk material with ultra - fine grain for the requirements of property measurement and engineering utilization, the transformation of friction press - torsion deformation zone was introduced in this paper. both the transmit of heat theory and the plastic mechanical theory were practiced to analyse the mechanical and deformation qualification
為了得到大塊的超細晶結構材料，滿足超細晶材料性能研究和工程應用的需要，本文提出了一種在大塊結構材料內部得到超細晶的新方法? ?摩擦壓扭強變形區轉移法。 -
Elastic - plastic torsion
彈塑性扭轉 -
And, the structure weak - regions lie respectively in the transfer - floor, the vicinity of the 20th floor and the roof, which need to make the measure to avoid the structure plastic deformation under the action of stronger earthquake. ( 5 ) the vibration form appears the coupling of move and torsion, electing the first 15 modes to analyze can reflect accurately the actual load - function situation of the structure
轉換層、 20層附近以及頂層為結構的薄弱層，需採取加強措施以防在強震下產生塑性變形。 （ 5 ）本結構的振動形式表西安理工大學碩士學位論文現為平動與扭轉的禍連，取結構的前巧階振型作分析能夠較精確的反應結構的實際受力狀態。
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