173 citations · 1.4k across the 55 of their papers we have counts for
7 papers · 1 filter
Comparing quantum, molecular and continuum models for graphene at large deformations
Aningi Mokhalingam, Reza Ghaffari, Roger A. Sauer +1
In this paper, the validity and accuracy of three interatomic potentials and the continuum shell model of Ghaffari and Sauer [1] are investigated. The mechanical behavior of single…
A modified Coulomb's law for the tangential debonding of osseointegrated implants
Katharina Immel, Thang X. Duong, Vu-Hieu Nguyen +2
Cementless implants are widely used in orthopedic and oral surgery. However, debonding-related failure still occurs at the bone-implant interface. It remains difficult to predict s…
An adaptive space-time phase field formulation for dynamic fracture of brittle shells based on LR NURBS
Karsten Paul, Christopher Zimmermann, Kranthi K. Mandadapu +3
We present an adaptive space-time phase field formulation for dynamic fracture of brittle shells. Their deformation is characterized by the Kirchhoff-Love thin shell theory using a…
A NURBS-based Inverse Analysis for Reconstruction of Nonlinear Deformations of Thin Shell Structures
N. Vu-Bac, T. X. Duong, T. Lahmer +4
This article presents original work combining a NURBS-based inverse analysis with both kinematic and constitutive nonlinearities to recover the applied loads and deformations of th…
A nonlinear hyperelasticity model for single layer blue phosphorus based on ab-initio calculations
Reza Ghaffari, Farzad Shirazian, Ming Hu +1
A new hyperelastic membrane material model is proposed for single layer blue phosphorus (), also known as blue phosphorene. The model is fully nonlinear and captures th…
A nonlinear thermomechanical formulation for anisotropic volume and surface continua
Reza Ghaffari, Roger A. Sauer
A thermomechanical, polar continuum formulation under finite strains is proposed for anisotropic materials using a multiplicative decomposition of the deformation gradient. First,…
Investigating the normal and tangential peeling behaviour of gecko spatulae using a coupled adhesion-friction model
Saipraneeth Gouravaraju, Roger A. Sauer, Sachin Singh Gautam
The present work investigates the normal and tangential peeling behaviour of a gecko spatula using a coupled adhesion-friction model. The objective is to explain the strong attachm…