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平均模量
相关语句
  average modulus
     For weak rock with plenty of fissures such as sandstone and coal,the dynamic modulus is larger than the average modulus.
     含有大量裂隙的砂岩、煤等软弱岩石,动态模量大于平均模量;
短句来源
     The average modulus, which is determined from the average slope of the more-or-less straight-line portion of the axial stress-strain curve, is less influenced by the experimental conditions. But the calculation method is not clear.
     平均模量是应力-应变曲线中近似直线部分的斜率,受试验条件的影响较小,表示了应力与应变的变化关系,但其计算方法不够明确。
短句来源
     The secant modulus from zero stress can not describe the deforming property of the practical rock mass. But the average modulus, which is determined from the average slope of the more-or-less straight-line portion of the axial stress-strain curve, is less influenced by the experimental conditions.
     与割线模量相比,平均模量是应力-应变曲线中近似直线部分的斜率,受试验条件的影响较小,表示了应力与应变之间的变化关系。
短句来源
     Nanoindentation characterization demonstrated that the coating has a porous surface morphology and can be densified in the progress. The average modulus of the coating is (1.3) GPa, which is between the modulus of the prosthetic device and that of the brain tissue.
     利用纳米硬度仪得到的载荷-位移曲线表明,聚吡咯涂层具有疏松的表面结构,在受到压力时,涂层渐被压实,涂层的平均模量为1.3GPa,介于修补元件材料与中枢神经组织之间,在力学模量上起到了良好的中间过渡层作用。
短句来源
     Based on experiments of fine sandstone specimens,it is found that the strength is in relation to average modulus when strength is lower,and the modulus becomes a constant when specimen is compressed under higher confining pressure.
     根据一组细砂岩试验结果发现:试样强度较低时,平均模量与强度成正比,表明岩样破坏时内部完好材料需要的弹性变形相同;
短句来源
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  “平均模量”译为未确定词的双语例句
     ln tensile strength 905 MPa, mean module 42.2 GPa and mean fracture elongationrate 2. 14 %.
     所得通用级沥青炭纤维样品平均直径为11.6μm,平均抗拉强度为9O5MPa,平均模量为42.2GPa,平均断裂伸长为2.14%.
短句来源
     The results showed that for three rock types of which the average Young’s moduli in tension,ETA,were much smaller than those in compression,ECA,(ECA/ETA ratio equals 2,2.5 and 6),the average deformation modulus of unloading in tension,ETAUN,was much greater than ETA,and the values of ETAUN were approximately equal to ECA.
     结果表明,对于其中压缩平均变形模量ECA较拉伸平均模量ETA大得多的3种岩石(ECA/ETA分别等于2,2.5和6),拉伸下的卸载平均模量ETAUN远大于ETA,且ETAUN约等于ECA。
短句来源
     Experimental results from servo-controlled testing machine and public references are used to study the relation between confining pressure and Young's modulus for various rocks.
     利用伺服试验机和文献上的试验结果得到了不同岩石的平均模量与围压的关系。
短句来源
     Confining pressure merely does not influence Young抯 modulus of rock with homogeneous material in macrostructure or with local flaws only.
     宏观均匀致密或仅含有局部缺陷的岩样,平均模量与围压无关。
短句来源
     Rock with lower strength has lower Young抯 modulus as well, and Young抯 modulus tends to its limit quickly.
     单轴压缩强度较低的岩石,其平均模量也较小,且更快地趋于其极限。
短句来源
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  相似匹配句对
     Compressive modulus (E) changes with the fine railings content (?)
     尾砂压缩模量E和平均粒径(?)
短句来源
     For a sample of 38 sources we derive an average value of
     平均结果为
短句来源
     Mean Entropy
     平均
短句来源
     The Influence of Heat-Cycle Frequenly the Weibull Modulus and Average Strength of SiC Kiln Furniture
     热循环次数对SiC窑具Weibull模量平均强度的影响
短句来源
     Unloading Modulus of the Shanghai Soft Clay
     软土的卸荷模量
短句来源
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  average modulus
While the average modulus of elasticity and modulus of rupture in juvenile wood are 85% and 82% respectively of the mature wood value, the longitudinal compression strength is similar.
      
In this series model the parameters are the chain orientation distribution, the average modulus for shear between the chains, the chain modulus and a simple yield condition based on the critical resolved shear stress.
      
The resulting expression of the average modulus includes as special cases the Kerner formula for incompressible elastic materials and the Oldroyd expression of the complex viscosity of emulsions of Newtonian liquids in time-dependent flow.
      
Stress-strain curves of sinusoidally stretched sets of filaments revealed complex, non-linear behavior with an average modulus of elasticity of 5 MPa·m-2.
      
The average modulus of groundwater resources is about 1.4?L/s/km2.
      
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Mechanical properties of T300 carbon fibre reinforced epoxy composite areinvestigated under impact tension of strain rates from 10~(-3)/s to 10~3/s.Experimental re-sults and numerical simulation show that the composite is weak sensitive to strain ratesin the studied region.Geometry effect of specimen is analysed and a detailed discussionis given to the action of stress wave on the fracture feature.Depending on the responseof the composite to tensile impact,esp.of strain rates from 10~2/s to 10~3/s,the necessi-ty...

Mechanical properties of T300 carbon fibre reinforced epoxy composite areinvestigated under impact tension of strain rates from 10~(-3)/s to 10~3/s.Experimental re-sults and numerical simulation show that the composite is weak sensitive to strain ratesin the studied region.Geometry effect of specimen is analysed and a detailed discussionis given to the action of stress wave on the fracture feature.Depending on the responseof the composite to tensile impact,esp.of strain rates from 10~2/s to 10~3/s,the necessi-ty of studying the composite in a more widespread rate range is suggested.

该文研究了T300碳纤维单向增强的环氧复合材料,在应变率从10~(-3)/s到10~3/s范围内的冲击拉伸行为.通过对实验数据进行拟合,得出该范围内材料对应变率具有弱的敏感性,表现在破坏强度及破坏应变随应变率增加不显著变化,平均模量几乎不受应变率的影响.分析了试件的几何尺寸效应,讨论了应力波作用对破坏形态的影响以及实验中观察到的拔出现象.从应变率在10~2~10~3/s附近材料行为某些非确定性,指出在更宽范围内了解其性能的必要性.

With coal tar of WISGCO, general pitch carbon fiber is made in the process ofpurlfying, adjusting, splnnlng, unfusing and carbonizing' The mean diameter of fiber sample is11. 6 μm, mc;ln tensile strength 905 MPa, mean module 42.2 GPa and mean fracture elongationrate 2. 14 %.

以武钢煤焦油为原料,通过原料净化、可纺沥青的调制、沥青纺丝、沥青纤维不熔化和不熔化纤维发化工艺研制通用级炭纤维。所得通用级沥青炭纤维样品平均直径为11.6μm,平均抗拉强度为9O5MPa,平均模量为42.2GPa,平均断裂伸长为2.14%.

Rock is made of mineral grains with fissures and cracks and it is not nonlinear elastic at all.There is no mechanical relation between the dynamic and static parameters.For weak rock with plenty of fissures such as sandstone and coal,the dynamic modulus is larger than the average modulus.However,for marble rock with different grains,the relation between the dynamic modulus and the average modulus is much complex although the dynamic modulus is larger than the deformation modulus.The dynamic modulus is even smaller...

Rock is made of mineral grains with fissures and cracks and it is not nonlinear elastic at all.There is no mechanical relation between the dynamic and static parameters.For weak rock with plenty of fissures such as sandstone and coal,the dynamic modulus is larger than the average modulus.However,for marble rock with different grains,the relation between the dynamic modulus and the average modulus is much complex although the dynamic modulus is larger than the deformation modulus.The dynamic modulus is even smaller than the deformation modulus for the volcanic or metamorphic rock.The dynamic Poisson's ratio is very sensitive to the wave speed and no clear pertinence with the static parameter.Rock blocks from in?situ have unloaded and dehydrated,and the machining of specimens may produce new damage.There are opening fissures in the specimen,which results in the supersonic wave speed lower.For example the average value of longitudinal speeds measured in the dike ends of one marble mine is larger than the maximum speeds of specimens.Therefore,it is not safe to evaluate the integrality of rock mass by the ratio of the supersonic wave speed in rock mass to that in the specimen.

岩石由矿物颗粒组成,内部存在弱面、裂隙等结构,并非线弹性材料,动静态参数之间并没有确定的力学关系.含有大量裂隙的砂岩、煤等软弱岩石,动态模量大于平均模量;大理岩的动态模量大于变形模量,但与平均模量的关系较为复杂;火成岩及其变质岩,动态模量可以小于变形模量.动态泊松比对波速极端敏感,与静态参数没有明确的关系.现场取回岩块已经卸载、脱水,岩样加工也会对材料产生损伤,内部出现张开裂隙,超声波速度降低.如某大理岩矿岩墙端头所测纵波速度的平均值就大于室内岩样纵波速度的最大值,因而以岩体与岩样纵波速度的比值评价岩体完整性将偏于不安全.

 
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