In the present work, the Young's modulus of single layer graphene sheet has been investigated by using comprehensive classic as well as quantum mechanics (QM) calculations. Molecular mechanics (MM) approach with various well-defined force-fields such as AIREBO, Tresoff and EDIP potentials have ...
电阻率约10-6 Ω·cm,比铜或银更低,世界上电阻率最小的材料,常温下的超导材料; ?优良的机械性能: Young’s modulus 1.1 Tpa; ?柔韧性; ?透光性; ?高比表面: ~ 2630m2/g; ?极好的稳定性; ?良好的生物兼容性; ?优良的热导性:5300 W/mK; ?常温下具有量子霍尔效应; ?其他更多特性有待我们共同研究。
Keywords: 石墨烯,半连续体模型,杨氏模量Graphene,Semi-continuous model,Young's modulus Full-Text Cite this paper Add to My Lib Abstract: 石墨烯力学性能的研究对其在半导体技术中的应用是十分重要的,本文基于半连续体模型并结合石墨烯纳米结构特性,通过对原子的描述构建了石墨烯形变分量和位移分量的新关系...
A quantitative-structure-property relationship is derived, which correlates Young's modulus to the total energy and the number of carbon atoms within the ribbon. In the limit of extended graphene sheets we determine the value of Young's modulus to be 1.09 TPa, in excellent agreement with ...
Whereas in the case of uniform stress, the Young's modulus of the composite is given by(8)Ec=EeffEmvmEeff+vgEmwhere Eeff is the Young's modulus of the multilayer graphene filler that depends only upon its structure;26,188 Em is the Young's modulus of the matrix, and vg and vm are ...
which the nylon chains are grafted onto both the basal plane and periphery of the graphene. As a result, the tensile strength of fibers prepared by melt spinning of the Nylon-graphene composite were increased 2.1-fold and the Young’s modulus 2.4-fold with a graphene loading of only 0.1%....
Finite element simulations were performed in ABAQUS software. A circular monolayer graphene sheet with a diameter of 1.2 μm was modeled as a linear elastic isotropic plate using the four-node shell (S4R) element. The following parameters were adopted: Young’s modulusE = 1,000 GPa...
The mechanical properties, including the Young's modulus and intrinsic strength, of graphene oxides are investigated by first-principles computations. Structural models of both ordered and amorphous graphene oxides are considered and compared. For the ordered graphene oxides, the Young's modulus is foun...
modelingRandomparametersMulti-scalemodelingA stochastic multi-scale approach is developed for predicting elastic properties of graphene/polymer nanocomposites. All scales of nano, micro, meso a…[RohamRafieeAmiraliEskandariyun]Composites Part B Engineering...
3a. It is interesting to note that the produced Gr/PMMA nanolaminates demonstrate a substantial increase of Young’s modulus (taken from the initial ~0.4% strain part of the curve) as a function of graphene content and a linear relationship between modulus and volume fraction is found to hold...