Mechanical Response of a Micro Silicon Membrane: Model Validation by Finite Element Method

Wire ropes that have a wide range of applications endure loads, stresses, strains, and moments while carrying out the duty of carrying loads. Wire ropes and strands are frequently used as load carrying elements due to their flexible structure and being reliable products. A prestressing steel strand is a form of the pattern of 1×6 helical wires which supply extra stiffness. Contact conditions between adjacent wires, helical geometry of wires at outer layers make it difficult to find the mechanic response of wire ropes or strands under axial load. A good way to overcome this difficulty is to perform a computer-aided simulation with finite element method. In this study, a prestressing strand having 11.11 mm diameter is computer-aided modeled by using SolidWorks, and then ANSYS Workbench is used to determine the mechanical response of the investigated rope strand. The findings indicate that results remained in the elastic region in all finite element simulations until the strain value of 0.00728. Keywords: prestressing strand, finite element method, tensile stress, strain, twisting moment.

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Moment-Membrane model of a plate as a continual model of graphene deformations and a finite element method for its calculation

10.1063/5.0073269 ◽

2021 ◽

Author(s):

Samvel H. Sargsyan

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Membrane Model ◽

Continual Model ◽

Element Method

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Finite Element Analysis of the Uncertainty of Physical Response of Acoustic Metamaterials with Interval Parameters

International Journal of Computational Methods ◽

10.1142/s021987621950052x ◽

2019 ◽

Vol 17 (08) ◽

pp. 1950052 ◽

Cited By ~ 2

Author(s):

Y. Wu ◽

X. Y. Lin ◽

H. X. Jiang ◽

A. G. Cheng

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Mechanical Response ◽

Dynamic Properties ◽

Upper And Lower Bounds ◽

Acoustic Metamaterials ◽

Element Analysis ◽

Interval Parameters ◽

Physical Response ◽

Element Method

The physical response of acoustic metamaterials may change due to the variation of the material properties in the manufacture process. Thus, an interval perturbation finite element method is formulated to study the mechanical response of acoustic metamaterials with the interval parameters, which includes the uncertainty effects on the band structure, resonance mode and frequency response of acoustic metamaterials. By virtue of the first-order Taylor series expansion and sensitivity analysis of dynamic properties of acoustic metamaterials with respect to the interval parameters, the interval perturbation finite element method established in this work can predict the upper and lower bounds of the dynamic properties of the acoustic metamaterials. Three numerical examples are studied to validate the effectiveness of the interval perturbation finite element method to analyze the physical response of acoustic metamaterials with the interval parameters, and the results calculated by Monte Carlo method are regarded as the reference results to validate the interval perturbation finite element method. The uncertainty model constructed by interval perturbation finite element method provides a great help in the design of acoustic metamaterials.

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Experimental, Numerical, and Analytical Study on The Effect of Graphene Oxide in The Mechanical Properties of a Solvent-Free Reinforced Epoxy Resin

Polymers ◽

10.3390/polym11122115 ◽

2019 ◽

Vol 11 (12) ◽

pp. 2115 ◽

Cited By ~ 1

Author(s):

Sergio Horta Muñoz ◽

María del Carmen Serna Moreno ◽

José Miguel González-Domínguez ◽

Pablo Antonio Morales-Rodríguez ◽

Ester Vázquez

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Graphene Oxide ◽

Epoxy Resin ◽

Failure Modes ◽

Mechanical Response ◽

Solvent Free ◽

Image Correlation ◽

Analytical Technique ◽

Element Method

This paper presents a methodology for manufacturing nanocomposites from an epoxy resin reinforced with graphene oxide (GO) nanoparticles. A scalable and sustainable fabrication process, based on a solvent-free method, is proposed with the objective of achieving a high level of GO dispersion, while maintaining matrix performance. The results of three-point bending tests are examined by means of an analytical technique which allows determining the mechanical response of the material under tension and compression from flexural data. As result, an increase of 39% in the compressive elastic modulus of the nanocomposite is found with the addition of 0.3 wt % GO. In parallel, we described how the strain distribution and the failure modes vary with the amount of reinforcement based on digital image correlation (DIC) techniques and scanning electron microscopy (SEM). A novel analytical model, capable of predicting the influence of GO content on the elastic properties of the material, is obtained. Numerical simulations considering the experimental conditions are carried out. the full strain field given by the DIC system is successfully reproduced by means of the finite element method (FEM). While, the experimental failure is explained by the crack growth simulations using the eXtended finite element method (XFEM).

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A Finite Element Method for Mechanical Response of Hair Cell Ciliary Bundles

Journal of Biomechanical Engineering ◽

10.1115/1.429626 ◽

1999 ◽

Vol 122 (1) ◽

pp. 44-50 ◽

Cited By ~ 20

Author(s):

John R. Cotton ◽

J. Wallace Grant

Keyword(s):

Finite Element Method ◽

Finite Element Analysis ◽

Finite Element ◽

Hair Cell ◽

Mechanical Response ◽

Mechanical Analysis ◽

Element Analysis ◽

Shear Deformable ◽

Element Method

This paper describes the development of a methodology for performing a mechanical analysis of hair cell ciliary bundles. The cilia were modeled as shear deformable beams, and interconnections were modeled as two-force members. These models were incorporated into software, which performs a finite element analysis of a user-defined bundle. The algorithm incorporates aspects of the bundle such as geometric realignment and buckling of compressed side links. A sample bundle is introduced and results of modeling it are presented. [S0148-0731(00)00801-3]

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