• 最后作者提出了极限应变作为冻土工程稳定性判据观点

    Finally, a new viewpoint of adopting limited strain as the major criteria of stability in frozen soil engineering is proposed.

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  • 试验研究潜艇艇体用爆炸冲击载荷作用下动态极限应变

    Experimental investigation were carried out on dynamic failure strain of submarine steel under shock loading.

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  • 试验结果确定了CFRP约束高强混凝土强度极限应变计算模型

    The calculation model of strength and ultimate strain of high-strength concrete wrapped with CFRP is made based on this results.

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  • 峰值应变应变增大增长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.

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  • 分段位移传递有限应变理论相结合计算大变形下极限应变

    Limit strain is able to be calculated by the combination of the fractionized displacement transfer (FDT) algorithm and the finite strain theory.

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  • 利用极限应变构件弯曲性能进行理论分析,其结果试验结果吻合良好

    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.

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  • 结果表明纤维包裹加固钢筋混凝土轴心抗压承载能力极限应变明显提高

    The results indicate that the confinement of fiber sheet can increase the compressive strength and ultimate strain of reinforced concrete column remarkably.

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  • 采用极限应变准则作为极限状态方程运用改进JC方法分析了地下隧洞稳定可靠度。

    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.

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  • 根据实测资料给出配混凝土试件与其对应湿后混凝土试件拉伸极限应变概型分布

    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.

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  • 极限应变构成FLD应变路径影响很大,在研究复杂应变路径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.

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  • 横轴方向的位移荷载速度越大,纵轴方向弹性量越大,平台极限应变小,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.

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  • 混凝土矩形FRP侧向强约束作用下,极限应力极限应变提高系数FRP的包裹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.

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  • 屈服应变可观增加应力没有增加的应力极限这个极限下,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.

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  • 土坡稳定问题塑性极限分析法惯用极限平衡分析法不同考虑应力——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.

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  • 试验结果表明加载应变路径变化影响成形极限曲线高低。

    It is shown that the change of loading strain path will affect the forming limit curve.

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  • 结果表明,成形极限力图不受应变路径影响,对于同一失稳准则,不同加载应变路径几乎为同一条曲线

    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.

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  • 计算得到轮包成形极限图、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可靠性正确性

    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.

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  • 该理论不仅可以给出复合材料强度极限强度,而且给出复合材料应力-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.

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  • 通过计算平面应力和平应变问题极限荷载因子相应的坍塌机构,验证算法的有效性

    Its efficiency was demonstrated by computing the limit load factor and the collapse state for some plane stress and plain strain problems.

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  • 采用传统极限平衡方法来分析边坡稳定没有考虑土体本身应力应变关系工作状态虚拟的。

    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.

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  • 试验观测了试件破坏全过程破坏形态等,记录荷载位移滞回曲线开裂荷载、极限荷载、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.

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  • 研究结果表明混凝土早期自收缩大小相应的极限拉伸应变具有显著次曲线关系

    Research results show that the relationship between autogenous shrinkage at early ages and ultimate tensile strain can be approximately figured by a quadric equation.

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  • 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应变路径关系

    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.

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  • 运用最大应变理论强度极限分析法,对简体、端板重要部件进行强度校核

    Used the maximum strain-energy theory and strength limit analytic method to check the important part such as sleeve, end-plate, etc.

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  • 笔者对此现象进行机理分析,并提可一出相应极限强度计算模型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.

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  • 拉伸应变达到承载极限,继续拉伸,突然很小是因为团簇发生结构变化

    When the tensile strain reaches the limit load, the force of tension suddenly becomes very small, because clusters structures change.

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  • 试验结果表明,铝内衬极限断裂应变材料极限延伸率的25%。

    The test results shows that AL-liner fracture strain is only 25 % of material ultimate strain.

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  • 在各项条件基本相同情况下,由于纤维的作用对延性系数提高幅度41.3%,极限应变的提高幅度达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%.

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  • 试验结果表明GFRP可以有效地提高极限强度峰值应变延性

    The experiment results indicate that GFRP sheet can enhance ultimate strength, peak value and ductility of brick masonry columns.

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  • 钢管混凝土极限应变钢管混凝土结构抗震设计重要参数之一

    Ultimate compression strain of Concrete-filled steel tube (CFT) is one of important parameters for seismic design of CFT structures.

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