最后作者提出了用极限应变作为冻土工程稳定性判据的新观点。
Finally, a new viewpoint of adopting limited strain as the major criteria of stability in frozen soil engineering is proposed.
试验研究了潜艇艇体用钢在爆炸冲击载荷作用下的动态极限应变。
Experimental investigation were carried out on dynamic failure strain of submarine steel under shock loading.
试验结果确定了CFRP约束高强混凝土强度和极限应变的计算模型。
The calculation model of strength and ultimate strain of high-strength concrete wrapped with CFRP is made based on this results.
峰值应变随应变率增大有增长的趋势,极限应变没有明显的率敏感性;
The peak strain has a increasing tendency with the increase in strain rate; and the ultimate strain is not sensitive to the strain rate.
将分段位移传递法和有限应变理论相结合,可计算大变形下的极限应变。
Limit strain is able to be calculated by the combination of the fractionized displacement transfer (FDT) algorithm and the finite strain theory.
利用极限应变法对构件的弯曲性能进行了理论分析,其结果与试验结果吻合良好。
Moreover, the limiting strain method is used in the theoretical study of the flexural behavior of the beams, and the theoretical analysis shows a good agreement with the experimental results.
结果表明:纤维布包裹加固钢筋混凝土柱的轴心抗压承载能力和极限应变明显提高;
The results indicate that the confinement of fiber sheet can increase the compressive strength and ultimate strain of reinforced concrete column remarkably.
采用极限应变准则作为极限状态方程,运用改进的JC方法分析了地下隧洞稳定的可靠度。
In this paper the limit strain criterion is used as a limit state function and an improved JC method is used to calculate the reliability index of the stability of the tunnel.
根据实测资料,给出了全级配混凝土大试件和与其对应湿筛后混凝土小试件拉伸极限应变的概型分布;
On the basis of test data, this paper gives the probability distributions of the limit tensile strain of large full graded samples and small wet screened ones.
因极限应变构成的FLD受应变路径的影响很大,在研究复杂应变路径的成形极限问题时带来极大不便。
Strain-based FLD is strongly affected by the strain path and has brought much inconvenience to the study of forming limit under complex strain paths.
横轴方向的位移荷载速度越大,纵轴方向的弹性模量越大,平台极限应变越小,而屈服应力和平均平台应力相差不大。
When the transverse loading speed becomes bigger, the axial elasticity modulus also becomes bigger, while the platform yeild strain becomes smaller, buy the yield stress changes little.
混凝土矩形柱在FRP侧向强约束作用下,极限应力、极限应变的提高系数与FRP的包裹量及截面形状、特征有关。
For rectangular columns sufficiently confined with external FRP, the improvement of ultimate stress and stain is related to the amount of FRP and the shape and characteristics of the cross-section.
屈服点是在应变有可观增加,应力没有增加的应力极限,在这个极限下,如果应变继续增加,应力就也会增加。
The yield point is the stress at which there is an appreciable increase in strain with no increase in stress, with the limitation that, if straining is continued, the stress will again increase.
土坡稳定问题的塑性极限分析法与惯用的极限平衡分析法不同的是它考虑了土的应力——应变关系,属土坡稳定分析的新技术。
The plasticity analyses for stability problems is differentiated from the conventional limit equilibrium method by the former in consideration of the soil's stress-strain relationship.
试验结果表明:加载应变路径的变化会影响成形极限曲线的高低。
It is shown that the change of loading strain path will affect the forming limit curve.
结果表明,成形极限应力图不受应变路径影响,对于同一失稳准则,在不同加载应变路径下几乎为同一条曲线。
The result shows that FLSD is independent of strain path, and that the FLSD under different strain paths are almost the same curve according to the same instability theory.
对计算得到的轮包成形极限图、应力应变分布图进行了分析,并采用基于网格分析法的物理实验验证了有限元建模的可靠性和正确性。
The validity of modeling, the accuracy and reliability of simulation results for stamping forming processes of hubcap are affirmed on the basis of grid strain analysis technique.
该理论不仅可以给出复合材料的初裂强度和极限强度,而且还能给出复合材料的应力-应变曲线。
Not only the strength at first crack and ultimate strength can be calculated, but the stress-strain curve of composite material can be established.
通过计算平面应力和平面应变问题的极限荷载因子和相应的坍塌机构,验证了算法的有效性。
Its efficiency was demonstrated by computing the limit load factor and the collapse state for some plane stress and plain strain problems.
采用传统的极限平衡方法来分析边坡的稳定,没有考虑土体本身的应力—应变关系,其工作状态是虚拟的。
Analyzing the stability of the side slope through classical ultimate balance method, the working state is fictitious without considering the stress-strain relation of the soil mass.
试验中,观测了试件的破坏全过程及破坏形态等,记录了荷载—位移滞回曲线、开裂荷载、极限荷载、箍筋和纵筋的应变等数据。
The failure process and mode has been observed, and load-displacement curves, cracking and ultimate load, and the strain of longitudinal and transverse steels have been recorded.
研究结果表明,混凝土早期自收缩大小与相应的极限拉伸应变具有显著的二次曲线关系;
Research results show that the relationship between autogenous shrinkage at early ages and ultimate tensile strain can be approximately figured by a quadric equation.
在数值模拟中应用最小厚度作为成形极限判据,研究最小厚度值与应变路径的关系。
In numerical simulation minimum thickness was taken as forming limit criterion. The research on the relation between minimum thickness and strain paths was carried out.
运用最大应变能理论和强度极限分析法,对简体、端板等重要部件进行了强度校核。
Used the maximum strain-energy theory and strength limit analytic method to check the important part such as sleeve, end-plate, etc.
笔者对此现象进行了机理分析,并提可一出了相应的极限强度计算模型和应力应变三线性模型。
The distinctive working mechanism of HFRP strengthening columns was analyzed, and an ultimate strength mode and a tri-liner stress-strain model were put forward correspondingly.
当拉伸应变达到承载极限,继续拉伸,力突然变的很小,这是因为团簇发生了结构变化。
When the tensile strain reaches the limit load, the force of tension suddenly becomes very small, because clusters structures change.
试验结果表明,铝内衬的极限断裂应变仅为材料极限延伸率的25%。
The test results shows that AL-liner fracture strain is only 25 % of material ultimate strain.
在各项条件基本相同的情况下,由于钢纤维的作用对延性系数的提高幅度达41.3%,对极限压应变的提高幅度达30.6%。
As steel fiber is added to high shength concrete, the value of ductility coefficient increases 41. 3 %, and the ultimate compression stain increases 30.6%.
试验结果表明,GFRP布可以有效地提高砖柱的极限强度、峰值应变与延性;
The experiment results indicate that GFRP sheet can enhance ultimate strength, peak value and ductility of brick masonry columns.
钢管混凝土极限压应变是钢管混凝土结构抗震设计的重要参数之一。
Ultimate compression strain of Concrete-filled steel tube (CFT) is one of important parameters for seismic design of CFT structures.
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