四点弯曲,four-point bending
1)four-point bending四点弯曲
1.With the aid of the analytical methods of composite mechanics,a layered shear-lag model is established to investigate the multiple cracking of reinforced concrete(RC) beam reinforced with carbon fiber sheets underfour-point bending.借鉴复合材料力学的分析方法,建立一种分层剪滞模型,研究了碳纤维片材加固钢筋混凝土梁在四点弯曲载荷作用下的多重开裂破坏,求得了梁纯弯段下部钢筋保护层中的最大裂缝宽度和裂缝密度与施加载荷和碳纤维片材的粘贴层数之间的定量关系,计算结果与现有实验值较吻合。
2.Based on the study method for mechanics of composite materials,a layering model is established for the redistribution of the stress of reinforced concrete beam strengthened by unidirectional aramid fiber sheet with crack underfour-point bending load,and then the distributions of stress and displacement of all the sub-layers are obtained.借鉴复合材料力学的研究方法,对四点弯曲荷载作用下含裂缝的单向芳纶纤维片材加固钢筋混凝土梁的应力重新分布建立一种分层模型,从而获得了各子层的应力或位移分布。
3.In order to solve these problems,afour-point bending fatigue test system Cooper NU-14 was used to evaluate the fatigue performance of asphalt mixtures.鉴于其在加载方式与路面实际受力状态方面存在较大差别、实际开裂模式与理论开裂位置经常不一致,笔者尝试使用一种四点弯曲疲劳试验系统(即Cooper NU-14试验系统)评价沥青混合料的疲劳性能。
英文短句/例句
1.Experimental study of the environmental factor of composite honeycomb core sandwich panels in four-point bending tests复合材料蜂窝夹芯板四点弯曲环境因子试验研究
2.Experimental Investigation of Static and Fatigue Behaviour of Composites Honeycomb Materials Using Four Point Bending Tests复合蜂窝材料静力和疲劳性能的四点弯曲试验研究
3.Inflection Point拐点，弯曲点，转折点
4.QUASI-CONFORMING FOUR NODE PLATE BENDING ELEMENT FOR THIN PLATE VIBRATION ANALYSIS拟协调四节点板弯曲单元在薄板振动分析中的应用
5.His spine developed a slight curve.他的脊柱有点弯曲。
6.Here and there gleams as of a few scattered pieces of silver marked the windings of the great river.这里那里，银光点点，勾划出曲曲弯弯的河流航道。
7.classical double-curved bow with reversed curve ends.传统的具有反向弯曲端点的双曲弓。
8.Inspection Rules Used in Drawing Diagrams of Internal Bending Force;绘制弯曲内力图的“四查”规则及其应用
9.Whole Omphalion Curved Surface and Some Properties of Curve on It;全脐点弯曲曲面及其上曲线的若干性质
10.It was only offered a track on the right bank of the Rhine, which is winding and subject to delays.提供给它的只是莱茵河右岸的一条弯弯曲曲易于晚点的轨道。
11.Dragonflies are glancing and zigzagging over the pond蜻蜒在池面上弯曲点水，断续闪光。
12.Determination of Concrete Fracture Parameters from Three-Point Bending Tests;由三点弯曲试验确定混凝土断裂参数
13.Study of Critical Equivalent Crack of Three-Point Bending Beam;三点弯曲梁临界等效裂缝长度的研究
14.Boundary integration method of bending of thick rectangular plate with the corner paint hang in the air角点悬空弯曲厚矩形板的边界积分法
15.binodal cyclide双结点四次圆纹曲面
16.Each curved layer in a fold has a point of maximum curvature, which is called hinge point.在一个褶曲中，每一弯曲岩层上都有一个最大弯曲点，此点被称为枢纽点，
17.a twisty mountain road一条弯弯曲曲的山路
18.the twists and turns of the river这条河弯弯曲曲的地方.
相关短句/例句
four point bending四点弯曲
1.Interracial fracture properties of the stainless steel and aluminum bimetal are analyzed with the method offour point bending test,and the interface crack and the interface fracture structure are analyzed with SEM.采用四点弯曲的试验研究方法,对爆炸焊接不锈钢-铝复层材料界面断裂性能进行了研究,采用扫描电子显微镜对界面裂纹与断口形貌进行观察分析。
2.A new method for elastic modulus measurement of thin films—four point bending method is presented in this paper.提出了一种新的薄膜弹性模量测定方法──四点弯曲法 。
3)four_point bending beam四点弯曲梁
4)four-point bending method四点弯曲法
1.In this paper,a measurement system for thin film\"s gauge factor has been designed based onfour-point bending method and virtual instrumentation technology.本文应用四点弯曲法并基于虚拟仪器技术设计了氢化纳米硅薄膜应变系数测量平台,该平台利用虚拟仪器技术将测量硬件Agilent 34410A和NI 9237与计算机结合,并通过编程实现纳米硅薄膜在应力作用下的相应电阻变化和应变的测量和数据处理,从而实现纳米硅薄膜应变系数的自动测量。
5)four-point bend loading四点弯曲加载
1.The tensile stress characters distributing in the different specimen surfaces loaded by three-point andfour-point bend loading are analyzed by means of ANSYS software.通过ANSYS软件分析了三点弯曲、四点弯曲加载下不同弯曲试样表面的拉应力分布特征,结合材料因素对弯曲加载评价管线钢SCC有效性进行了探讨研究,并以X80钢为研究材料进行试验验证。
2.The stress corrosion cracking behavior of X80 and 16Mn pipeline steels and their welded joint in H2S solution environment are investigated by three-point andfour-point bend loading methods.分别采用三点弯曲、四点弯曲加载试验方法,研究了X80和16Mn管道钢及焊接接头的硫化物环境应力腐蚀开裂(SSCC)行为,并通过ANSYS软件分析了不同弯曲加载的应力分布特征,探讨了材料因素、力学因素对管道钢应力腐蚀行为的影响规律和机理。
6)Cylindrical bend specimen四点弯曲试件
延伸阅读
弯曲工艺的概念及弯曲件1．弯曲工艺：是根据零件形状的需要，通过模具和压力机把毛坯弯成一定角度，一定形状工件的冲压工艺方法。 2．弯曲成形工艺在工业生产中的应用：应用相当广泛，如汽车上很多履盖件，小汽车的柜架构件，摩托车上把柄，脚支架，单车上的支架构件，把柄，小的如门扣，夹子（铁夹）等。 弯曲的基本原理：以V形板料弯曲件的弯曲变形为例进行说明。其过程为： 1． 凸模运动接触板料（毛坯）由于凸,凹模不同的接触点力作用而产生弯矩， 在弯矩作用下发生弹性变形，产生弯曲。 2． 随着凸模继续下行，毛坯与凹模表面逐渐靠近接触，使弯曲半径及弯曲力臂均随之减少，毛坯与凹模接触点由凹模两肩移到凹模两斜面上。（塑变开始阶段）。 3．随着凸模的继续下行，毛坯两端接触凸模斜面开始弯曲。（回弯曲阶段）。 4．压平阶段，随着凸凹模间的间隙不断变小，板料在凸凹模间被压平。 5． 校正阶段，当行程终了，对板料进行校正，使其圆角直边与凸模全部贴合而成所需的形状。 弯曲变形的特点：弯曲变形的特点是：板料在弯曲变形区内的曲率发生变化，即 弯 曲半径发生变化。从弯曲断面可划分为三个区：拉伸区、压缩区和中性层。
