复合模量(E*,complex modulus)包括储能模量(Es)和损耗模量(El,loss modulus),两者之间的关系为...
我用DMA测出了储能模量,用应力应变曲线可以知道杨氏模量,这二者要对应吗?师兄说值要相近,但我二者差...
For this novel material system, the Young's modulus, which must be known for the calculation of the strain or the required magnetic force, is yet unknown. In this work, the Young's modulus was determined by tensile testing for the main parameters particle concentration and storage conditions....
E is the Young's modulus, I is the minimum net second moment of area of the uprights about an axis perpendicular to the plane of the upright frames, k is a factor depending on the position of the loads, H is the total height of the upright frame and ϕ is the angle between the...
4.3.3 Material Material Elastic-plastic stainless steel Density ρ [kg/m3] 7850 Young's modulus E [GPa] 210 Poisson's ratio ν 0.3 Quasi-static yield stress σ e (0 ) [MPa] 340 On the plastic domain boundary, the...
The stress–strain relationships and elastic Young's moduli along the longitudinal direction (parallel to CNT) are simulated, and the results are compared to those obtained using the rule-of-mixture. Their findings reveal that when longitudinal strain rises, the Young's modulus of CNT increases ...
(10,10) has a much higher Young’s modulus. For example, the bundle with 19 filaments has an elastic limit of ~0.13 and a gravimetric energy density of ~577 kJ kg−1. Unlike nanothread bundles, the flattening of individual CNT during torsion causes a deviation of the energy ...
Nicolleet al.13observed an increase in the shear modulus when the post-mortem time was increased from 24 to 48 h. To the contrary, McElhaneyet al.15reported that there was no obvious change in the mechanical response of the tissue within 15 h post-mortem. On the effect of storage ...
Anelastic measurements showed a complete agreement with dielectric properties in which the temperature dependence of the Young’s modulus and the losses are dominated by those of the polymer, but the magnitude of the modulus is larger of a factor ~3 with respect to PVDF due to the rigid ...
shale. The young's modulus of dolomite is higher than that of quartz, but the main mineral protecting pore is quartz. We think that there are at least two reasons for this phenomenon: (1) As mentioned above, quartz is the most abundant brittle mineral in the Qiongzhusi Fm. shale, with...