蠕变性
- 网络Creep;creep resistance;creep properties
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介绍了三峡工程船闸区硬性结构面的蠕变试验结果,着重分析了结构面在恒定荷载作用下的蠕变性态。
The creep test results on hard structural plane in TGP 's permanent lock regions are represented , and the creep status of structural plane under the acting of a constant load are emphatically analysed .
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蠕变塑性伸长率测定方法分析
Analyses of Measurement Methods of Creep Plastic Percentage Elongation
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蠕变塑性表征方法的研究
Study of Expressive Method of Creep Plastic
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通过等离子体处理法、氧化法等各种物理和化学的方法对UHMWPE纤维表面进行改性处理,可不同程度改善其耐热、界面、抗蠕变等弱性。
The weak heat resistance , interface and creep resistance of the fiber can be improved differently by the surface modification using various physical and chemical methods such as plasma and oxidation .
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超高分子量聚乙烯纤维蠕变性能改性研究
Investigation on Modification of Creep Behavior of UHMWPE Fiber
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抗高温蠕变高粘结性共聚酰亚胺应变胶研究
Studies on the Copolyimide Strain Adhesive Creep-Resistance and High Adhesion at High Temperature
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并对盐膏岩的蠕变与塑性变形的因素进行概述;
Moreover the creep deformation and plastic deformation factors of salt and anhydrite rocks are summarized ;
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试验结果指出,弯曲晶界试样与平直晶界试样相比,在850℃、35kg/mm~2条件下,蠕变断裂塑性平均提高73%,蠕变断裂寿命平均提高26%。
The results show that at the temperature of 850 ℃, load 35 kg / mm2 , the plastic property of average creep fracture of zigzag grain boundaries increases about 73 % and the average creep fracture life increases about 26 % as compared with the straight grain boundaries .
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TiAl基合金因其低密度,高强度,良好的抗蠕变和高温抗氧化性,是一种很有吸引力的高温结构材料。
TiAl-based alloys are one kind of attractive materials for high temperature structural applications because their outstanding mechanical properties such as high specific strength , good creep strength and acceptable oxidation resistance .
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提出一种新的考虑热应变、蠕变应变和塑性应变,反映界面脱层的Voronoi单元,并将其引入颗粒增强复合材料的力学性能模拟中。
A Voronoi cell element , formulated with creep , thermal and plastic strain , and interfacial crack , is proposed for the simulation of thermo-mechanical fatigue behavior of particulate reinforced composites .
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有限应变下蠕变-弹塑性-损伤耦合本构模型的数值模拟
Numerical simulation of coupled creep elastoplastic damage constitutive model at large strain
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蠕变-弹塑性-损伤耦合响应的有限元分析
Finite element analysis for coupled creep elastoplastic damage response
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影响疲劳/蠕变断裂寿命分散性的因素主要有层合板的铺设结构、木材缺陷和竹材结构等的影响。
The influence factors of fracture life are composites board 's lay structure , wood-lacuna , and bamboo structure .
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本文提出了一个模拟有限应变下各向同性蠕变-弹塑性-损伤耦合本构行为的数值模型。
A numerical model to simulate isotropic , coupled creep elastoplastic damage constitutive behavior at finite strain is proposed in the present work .
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由于蠕变问题的随机性研究较困难,过去的研究主要集中在确定性蠕变损伤问题上。
Because of the difficulty to get randomness of the creep data , the former research mainly concentrated on the deterministic creep damage problem .
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含有夹层的岩盐洞室变形,由于夹层与岩盐的特性差异,使得夹层与岩盐存在蠕变变形的差异性。
The deformation of rock salt cavern with bedded . There is some difference in creep distortion between rock salt and interlayer , because they have different identity .
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对比岩石定常本构模型、非定常本构模型计算结果对实验量测结果的拟合度,验证引入时变蠕变参数的必要性及合理性。
Compare was carried out between the fitness function value of constant constitutive model and that of inconstant model . The results reveal that it is necessary and reasonable to introduce time-varying parameters into creep constitutive model . 6 .
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深入开展角闪石和角闪质岩石变形特点与变形机制的研究工作,将促进加深对于中下地壳岩石的蠕变规律与流变性的了解,进而建立完整和全面的地壳岩石圈力学和流变学结构模型。
Detailed study on the deformation characteristics and deformation mechanisms of hornblende and hornblende rocks would promote understanding the creep laws and rheology of middle-lower continental crustal rocks , and establishing a comprehensive mechanical and rheological model of crustal lithosphere .
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本文对金属在均匀单向与复杂应力状态下的蠕变与蠕变破坏行为及结构物蠕变下持久性发展了系统的试验与理论研究。
The authors developed a systematic experimental and theoretical study on the behaviour of creep and creep rupture of metals under uniaxial and complex stress state , as well as on durability of constructional elements during creep .
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结合蠕变试验结果,研究和分析了三种测定蠕变塑性伸长率的方法。
Combine with the creep experimental results , the three methods for measure plastic percentage elongation of creep are studied and analysed .
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根据木材发生蠕变的原因,提出了几点减小木材蠕变的木材改性的方法。
Based on the causes of wood creep , wood modification was put forward to decrease creep deformation of wood .
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K46合金的高温拉伸蠕变曲线表现出非常长的稳态蠕变阶段,而较高的蠕变塑性来自于加速蠕变阶段。
It is found that the creep curves of alloy K46 consist mainly of a longer steady-state creep stage and an accelerated creep stage , which occupies the most creep strain .