彎折應力 的英文怎麼說
中文拼音 [wānzhéyīnglì]
彎折應力
英文
bucking stress- 彎 : Ⅰ形容詞(彎曲) curved; bent; crooked; flexuous; tortuous Ⅱ動詞1 (使彎曲) curved; bend; flex 2 ...
- 折 : 折動詞[口語]1. (翻轉) roll over; turn over 2. (倒過來倒過去) pour back and forth between two containers
- 應 : 應動詞1 (回答) answer; respond to; echo 2 (滿足要求) comply with; grant 3 (順應; 適應) suit...
- 力 : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
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When optical fiber bends, the refraction of towline rush pith changes with stress ' s function. then conduction and close region of the fiber change too
光纖彎曲時,光纖的纖芯折射率分佈由於應力作用而發生變化,因此,光纖的通導和截止空域也發生了變化。The study in the paper starts with beam distortions, and it treats the plastic deformation area as pure bending sect, rest of the beam as rigid bodies. according to different shapes of the external tendons, it divides into three structural forms familiar in projects, that is the beams with no deviator, with a deviator and with two deviators, and studies the relation between the deformation of the external prestressing tendons and that of the beams, and derives the formulas of the ultimate stress increment of external tendons. in the formulas, the ultimate angle corresponding to half of the plastic deformation area is considered as a variable parameter
本文首先從梁極限狀態下的變形入手,將塑性鉸區看作純彎段,將塑性鉸以外的區域看作剛體,按照體外預應力筋的形狀不同,分工程中最常見的三種體外結構形式,即無轉向塊的直線型體外筋混凝土梁、具有一個轉向塊的單折線型梁和具有兩個轉向塊的雙折線型梁,研究體外預應力筋變形和梁體的變形間的關系,推導出以極限狀態下塑性鉸區之半對應的轉角為參數的計算體外預應力混凝土簡支梁以及連續梁的體外筋應力增量計算公式,並進一步求得梁的極限承載力。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。It shows that the method suggested in the paper is simple, applicable for engineering and has good precision. on the bases of the formulas deduced, and combining with relative test datas, it studies in the paper several factors influencing the bearing performance of the simple beams, such as shape of the external tendons, the equal moment segment length, span - to - depth ratio of the beam, valid initial prestress of the external tendons, area of the internal tension reinforcement, strength of the concrete, vertical distance between
在公式推導的基礎上,結合相關試驗資料,研究了體外筋的形狀、等彎矩區長度、梁跨高比、有效張拉預應力、體內受拉筋配筋率、混凝土強度、錨固點到樑上邊緣在垂直方向上的距離、體外預應力筋水平段長度(雙折線型體外筋的情況)以及荷載類型等對體外預應力混凝土簡支梁受力性能的影響。Ldneinallcs, wiectory pltw for obstacle avodance, and intelligen contidl systein of macrowhcro mpatd pe be on vahable - - truss are the forly and pe in this diwton. by tw the am dris netal netwoik ( w, the proper bo nd - th for wrgt ~ ators is ds. based on the cn ' n, the fotw poanon pioblem of m wtwt variabe geotw to rugd is tiaind by use of the tw function
變幾何桁架機構有十分好的剛度重量比,理論上每個構件都是二力桿,不傳遞彎矩和扭矩,並可設計為可折疊的機構,變幾何桁架機器人機構比串聯型機器人機構有更好的剛度,這些特性使得變幾何桁架機構具有廣闊的應用前景。The carbon fibers with low strength are broken easily according to thermal tension and bend stress damage models, and the carbon fibers with high modulus are broken easily according to thermal shear stress damage model in spite of less damage caused by heat. the carbon fibers with surface glue of epoxy resin are damaged easily in physical and chemical ways because of high oxygen extent and rigidity of epoxy resin
低強度碳纖維容易在熱應力拉伸或彎折破壞模式下損傷;高模量碳纖維高溫損傷小,但國防科學技術大學研究生院學位論文容易以熱應力剪切破壞模式下斷裂;環氧樹脂表面膠剛性較大,氧含量較高,使碳纖維容易受到化學損傷和熱應力彎折損傷,均不宜用來制備c燈sic復合材料。Based on the calculated results of the computer program, varied stress contribution curves of short leg walls with t, l and + shaped sections are shown in the paper, together with deformation information of members. to measure the influence of shear lag, the equivalent bend stiffness of short leg walls is introduced. the discounting coefficients of the bend stiffness of members can be used in the bars - system models of short leg walls building structures
藉助一個力學模型,論文將影響構件側移的彎曲變形、剪切變形、剪滯效應三個因素分離開,分析了剪滯效應對構件抗側性能的影響,並將該影響計入了短肢剪力墻理論抗彎剛度的折減系數,經折減的短肢剪力墻等效抗彎剛度內在包含剪滯效應的影響,可方便地用於結構的計算實際。The physical damage models of carbon fibers are established, which are matrix shrink stress damage model, thermal tension stress damage model, thermal bend stress damage model and thermal shear stress damage model
由此建立了碳纖維的四種熱應力物理損傷模型,即基體體積收縮應力損傷模型、熱應力拉伸損傷破壞模型、熱應力彎折損傷破壞模型和熱應力剪切損傷破壞模型。The pseudo - force method is applied to calculate the compressive strength factor of the kinky propagated crack with the effect of interaction among cracks taken into account
採用偽面力法計算了考慮相互作用的彎折擴展裂紋應力強度因子,並通過一些簡化得到了顯式的表達式。分享友人