Related Experiment Video
Updated: Sep 10, 2025

Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding
Published on: September 23, 2018
A unified multifield formulation for analysis of a sandwich graphene origami reinforced composite curved structure
Mohanad Hatem Shadhar1, Yasser M Kadhim2, Mazin Hussien Abdullah3
1Department of Civil Engineering, College of Engineering, Al-Iraqia University, Baghdad, Iraq.
Abstract:
The present paper investigates influence of the graphene origami's characteristics and multi-load of piezoelectric materials on the frequency responses of a sandwich curved composed of a Graphene Origami (Gori) reinforced core. The Gori reinforced core is sandwiched with piezoelectric/piezomagnetic layers. A novel higher-order flexible model with thickness stretch-ability is employed for extension of the kinematic relations. The constitutive relations are derived using the important relations for effective material properties for Gori reinforced core and the multi-field equations for integrated piezoelectric/piezomagnetic layers. The natural frequency responses are presented with changes of foldability parameter and content of Gori as well as multi-field characteristics. An investigation on the geometric parameters of the sandwich curved beam and foundation's parameters is presented. A verification with available results of literature. The proposed model in this paper can be considered as an element of intelligent and controllable systems and structures with tunable responses and reflections.
Related Concept Videos
Bending of Members Made of Several Materials
Hooke's Law determines stress in each material, stating that stress is proportional to strain but varies due to each...
Bending of Curved Members - Strain Analysis
The important part of bending analysis for such a member...
Unsymmetric Bending
Residual Stresses in Bending
Design of Prismatic Beams for Bending
Unsymmetric Bending - Angle of Neutral Axis
When a bending moment is applied at an angle θ concerning the vertical axis of a symmetrical member, it can be resolved into components along the member's principal...

