79 citations · 205 across the 7 of their papers we have counts for
7 papers
Alternative writings of classical elastodynamics equations as a first order symmetric system
Dimitris Sfyris
We explore alternative writings of the equations of classical elastodynamics as a first order symmetric system. In the one dimensional case we present symmetric writings with respe…
Curvature dependent surface energy for free standing monolayer graphene: geometrical and material linearization with closed form solutions
D. Sfyris, G. I. Sfyris, C. Galiotis
Continuum modeling of a free-standing graphene monolayer, viewed as a two dimensional 2-lattice, requires specifications of the components of the shift vector that act as an auxili…
Curvature dependent surface energy for a free standing monolayer graphene: some closed form solutions of the nonlinear theory
D. Sfyris, G. I. Sfyris, C. Galiotis
Continuum modeling of a free-standing graphene monolayer, viewed as a two dimensional 2-lattice, requires specifications of the components of the shift vector that act as an auxili…
Graphene as a hexagonal 2-lattice: evaluation of the in-plane material constants for the linear theory. A multiscale approach
D. Sfyris, E. N. Koukaras, N. Pugno +1
Continuum modeling of free-standing graphene monolayer, viewed as a two dimensional 2-lattice, requires specification of the components of the shift vector that acts as an auxiliar…
Constitutive modeling of some 2D crystals: graphene, hexagonal BN, MoS, WSe and NbSe
D. Sfyris, G. I. Sfyris, C. Galiotis
We lay down a nonlinear elastic constitutive framework for the modeling of some 2D crystals of current interest. The 2D crystals we treat are graphene, hexagonal boron nitride and…
Stress intrepretation of graphene E-2g and A-1g vibrational modes: theoretical analysis
D. Sfyris, G. I. Sfyris, C. Galiotis
We here focus on only one graphene ring and examine to which stress tensor components the E2g and the A1g vibration mode of graphene correspond. These modes are typically related w…
Failure Processes in Embedded Monolayer Graphene under Axial Compression
Charalampos Androulidakis, Emmanuel N. Koukaras, Otakar Frank +7
Exfoliated monolayer graphene flakes were embedded in a polymer matrix and loaded under axial compression. By monitoring the shifts of the 2D Raman phonons of rectangular flakes of…