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123790

EVALUATION OF THE MATERIAL CONSTANTS OF NITRILE BUTADEINE RUBBERS (NBR) WITH DIFFERENT CARBON BLACK (CB): FE-SIMULATION AND EXPERIMENTAL

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Last updated: 04 Jan 2025

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Subjects

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Tags

Mechanical, Power, Production, Design and Mechatronics Engineering.

Abstract

Carbon black (CB) is used to enhance the mechanical properties of nitrile butadiene rubber (NBR) compounds compared with unfilled compounds. Rubber component design has remained a tedious work because of poor material models inadequately representing hyperelastic and viscohyperelastic behaviour. However, an appropriate choice of material constants can enable predicting elastomeric deformation sensibly and thus make well designed rubber products economically. In this paper, the experimental mechanical properties of NBR with different carbon black loading, CB, have been determined through, tension, compression and relaxation tests. Nonlinear mechanical behaviors of rubbers are described by strain energy functions in order to guarantee that the rigid body motions play no role in the constitutive law. The mathematical material models are based on the existence of strain energy density functions, W, to be scalar potential that depend on the component of the right Cauchy-Green deformation tensor or Green's strain tensor. The experimental data are fitted to these models in order to find the rubber material constants. Viscohyperelasticity behavior is generated by fitting the experimental data provided by the standard quasi-static tests (tensile, compression) to determine the material constants, while the standard relaxation tests are used to obtain the scalar multipliers and relaxation time constants. Study of the material constants based on different strain energy density functions is carried out. A comparison between experimental load/displacement response and FE-analysis of uniaxial compression test at different CB loading is presented.

DOI

10.21608/jesaun.2010.123790

Keywords

Rubbers, carbon black, Material properties, material models, hyperelastic and viscohyperelastic behavior, FES

Authors

First Name

Hassan M.

Last Name

A.

MiddleName

-

Affiliation

Mechanical Engineering Department, Faculty of Engineering Assiut University, Assiut, EGYPT 71516

Email

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City

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Orcid

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First Name

Abouel-Kasem

Last Name

A.

MiddleName

-

Affiliation

Mechanical Engineering Department, Faculty of Engineering Assiut University, Assiut, EGYPT 71516

Email

-

City

-

Orcid

-

First Name

Mahmoud A.

Last Name

El-Sharief

MiddleName

-

Affiliation

Mechanical Engineering Department, Faculty of Engineering Assiut University, Assiut, EGYPT 71516

Email

msharif@assiut.edu.eg

City

-

Orcid

-

Volume

38

Article Issue

No 1

Related Issue

16624

Issue Date

2010-01-01

Receive Date

2009-11-02

Publish Date

2010-01-01

Page Start

119

Page End

134

Print ISSN

1687-0530

Online ISSN

2356-8550

Article File

JESAUN_Volume 38_Issue No 1_Pages 119-134.pdf

PDF . 373.6kB

Link

https://jesaun.journals.ekb.eg/article_123790.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=123790

Order

8

Type

Research Paper

Type Code

1,438

Publication Type

Journal

Publication Title

JES. Journal of Engineering Sciences

Publication Link

https://jesaun.journals.ekb.eg/

MainTitle

EVALUATION OF THE MATERIAL CONSTANTS OF NITRILE BUTADEINE RUBBERS (NBR) WITH DIFFERENT CARBON BLACK (CB): FE-SIMULATION AND EXPERIMENTAL

Details

Type

Article

Created At

23 Jan 2023