塑性屈曲 的英文怎麼說
中文拼音 [sùxìngqūqū]
塑性屈曲
英文
plastic buckling-
The ship ' s hull is a thin - walled box girder structure composed of stiffened panels. the overall failure of a ship hull girder is normally governed by buckling and plastic collapse of the deck, bottom, or sometimes the side shell stiffened panels. therefore, the analysis of buckling and ultimate strength of ship panels in deck, boltom, and side shells is very important and necessary for the safety assessment of ship structure. in stiffened panels, local buckling and collapse of plating between stiffeners is a basic failure mode, and thus it would also very important to evaluate the buckling and ultimate strength interaction of plate elements under combined loads
船體梁的總體失效通常取決于甲板、船底板,有時候是舷側加筋板的屈曲和塑性破壞。因此,對于衡量船體結構的安全性而言,對甲板、底板、舷側板進行屈曲和極限強度分析是十分重要且必須的。對于加筋板而言,加強筋間的板格之局部屈曲和失效是最基本的失效模式。Results showed that the ductility of bolt spjice is much better than welds, weaker splice joints develop larger plastic deformation, slipping between faying surfaces, bearing of bolts to hole surfaces and buckling of splicing plates are all ideal energy dissipation mechanism
試驗結果表明:螺栓拼接節點的延性遠好於樑柱焊縫連接;較弱的拼接節點產生較大的塑性變形;接觸面的滑移、螺栓與孔壁的擠壓和翼緣拼接板的屈曲都具有良好的耗能能力。A fem of elasto - plastic flexural - torsional buckling of steel members under cyclic loading
循環荷載下壓彎鋼構件彈塑性彎扭屈曲的有限單元法Secondary bifurcation buckling behavior of elastic - plastic arch
拱結構的彈塑性二次分岔屈曲性能( 3 ) by using an elastic - plastic material model, the nonlinear analysis is taken on the rectangular tube and simply supporte d plate, and the ultimate carrying load capacity pu is obtained. the results show that the buckling mode is in accordance with the assumption of elastic analysis, and so shows the ultimate mode
( 3 )採用彈塑性模型,考慮幾何非線性理論,利用ansys軟體對矩形鋼管考慮板組相關屈曲影響和不考慮相關屈曲影響(將矩形管板件按四邊簡支板對待)兩種情況進行了屈曲後分析,分別得出其極限承載力p _ u ,並分析了矩形管的屈曲過程。Elastic - plastic bending induced residual stress and its influence on tensile yield strength of plates
彈塑性彎曲所致殘余應力及其對板料拉伸屈服強度的影響Nonlinear constitutive relations are discussed for analyzing the stress distribution, the appearance and development of the cracks, as well as the behavior of the boundary conditions of the two way slabs respectively. in the light of the experimental research on r. c. two way slabs under static loading, the behavior of yield line, the load deformation curves and the crack yield, plastic limit loads of slabs with different supporting conditions are studied
根據反映雙向板混凝土材料非勻質性的本構關系,分析了雙向板在荷載作用下的變形、屈服、裂縫和破壞的形態特性,並對鋼筋混凝土雙向板在不同支承條件下的塑性極限荷載、正常使用撓度(曲線)和截面設計作了進一步研究。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。Dynamic plastic buckling of cylindrical shells under axial impact
受軸向沖擊圓柱殼的塑性動力屈曲研究Dynamic plastic buckling
塑性動力屈曲The proposed beam model satisfied the rigid - body test requirement. by using general displacement control method ( gsp method ) to determine the incremental load parameter and using incremental tangent method to deal with material non - linearity, the proposed beam model were proved to be able to track the entire procedure of deformation, numerically effective during buckling or snap - through of structure
一系列的典型算例分析表明,本文提出的彈塑性大位移梁單元,能夠準確的跟蹤結構變形的整個過程,包括極值點失穩和跳躍屈曲的情況,可以運用於框架結構的屈曲后性能研究和非線性極限承載力的分析計算。Experimental study on elastoplastic buckling strength of web in i - section girder
鋼梁腹板彈塑性屈曲強度的試驗研究Since the overall failure of a ship hull is normally governed by buckling and plastic collapse of the deck, bottom or sometimes the side shell stiffened panels, it is of crucial importance to accurately calculate the ultimate strength of stiffened panels in deck, bottom and side shell for more advanced structural design of ship structures
由於船體梁的總體破壞通常由甲板、底板或者舷側加筋板的屈曲或塑性破壞控制,因此在船舶結構設計中準確地計算甲板、底板或舷側加筋板的極限強度就顯得尤為重要。The dynamic buckling of elastic - plastic column subjected to axial impact by a rigid body
剛性塊軸向撞擊桿的彈塑性動力屈曲The effects of external pressure on elastic - plastic dynamic buckling of ring - stiffened cylindrical
外壓對環肋圓柱殼軸向彈塑性動力屈曲的影響It ' s we1l known that the windshield material is an organic material. it shows visco - plastic behavior which is that the stress - strain curve, the yield stress and the limited stfess varied with the material deformation rate
眾所周知,風擋材料為有機材料,一方面呈現出粘彈塑性特性,即材料的應力應變曲線、屈服應力、破壞應力都隨著材料變形速率的變化而變化。For metals that experience the gradual elastic - plastic transition, the point of yielding is determined as the initial departure from linearity of the stress - strain curve and this is sometimes called the proportional limit
對于金屬逐步的彈塑性形變轉變,其屈服點確定為應力應變曲線非線性關系的開始,這個點也被稱為比例極限。Moreover, the detailed calculation and contrastive analysis are carried out by using the software ansys. theoretical calculation and testing results show that adopting the connection construction with a hole on the web can alleviate the stress state greatly and transform the failure mode of the connection from brittle fracture to local buckling damage on beam, reduces the possibility of brittle fracture by welding and improve the ductility performance of connection to a great extent
結果表明,採用腹板開孔的節點形式,可以使梁的塑性鉸位置由梁根部向中部偏移,達到了有效控制塑性鉸位置的目的;同時,採用這種節點構造可以改變節點附近的梁截面應力分佈狀態,降低了節點脆性破壞的可能性,使節點的破壞模式從脆性破壞轉變為梁的局部屈曲破壞,很大程度上改善了結構的延性。分享友人