Flexural Bending and Fatigue Analysis of Functionally Graded Viscoelastic Materials: Experimental and Numerical Approaches
This work synthesized a thermoplastic polymer with varying densities along one direction using additive manufacturing technology to study the dynamic and static characteristics of functionally graded viscoelastic materials (FGVMs). To describe the mechanical properties of FGVMs, an analytical formul...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Vasyl Stefanyk Precarpathian National University
2023-11-01
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| Series: | Фізика і хімія твердого тіла |
| Subjects: | |
| Online Access: | https://journals.pnu.edu.ua/index.php/pcss/article/view/6549 |
| _version_ | 1797234432771358720 |
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| author | E.K. Njim S.E. Sadiq M.S. Al-Din Tahir M.A. Flayyih L. Hadji |
| author_facet | E.K. Njim S.E. Sadiq M.S. Al-Din Tahir M.A. Flayyih L. Hadji |
| author_sort | E.K. Njim |
| collection | DOAJ |
| description | This work synthesized a thermoplastic polymer with varying densities along one direction using additive manufacturing technology to study the dynamic and static characteristics of functionally graded viscoelastic materials (FGVMs). To describe the mechanical properties of FGVMs, an analytical formulation based on the sigmoid-law formulation was proposed. The experimental program is conducted on 3D-printed samples, and various tests are conducted to examine the performance of such materials. Furthermore, the finite element method was used to evaluate the structural system's flexural properties. The influences of FG parameters and geometrical properties on flexural and reverse bending fatigue life are analyzed. The results show that increasing porosity from 10% to 30% at a power-law index (k = 2) reduces bending strength by 31.25 percent and deflection by around 11.2 percent for VE samples. Changing the power-law exponent from 0.5 to 10 increases fatigue strength by 35 %. |
| first_indexed | 2024-04-24T16:31:59Z |
| format | Article |
| id | doaj.art-c586f9be2b16441593978080affcaf01 |
| institution | Directory Open Access Journal |
| issn | 1729-4428 2309-8589 |
| language | English |
| last_indexed | 2024-04-24T16:31:59Z |
| publishDate | 2023-11-01 |
| publisher | Vasyl Stefanyk Precarpathian National University |
| record_format | Article |
| series | Фізика і хімія твердого тіла |
| spelling | doaj.art-c586f9be2b16441593978080affcaf012024-03-29T22:27:38ZengVasyl Stefanyk Precarpathian National UniversityФізика і хімія твердого тіла1729-44282309-85892023-11-0124462863910.15330/pcss.24.4.628-6395687Flexural Bending and Fatigue Analysis of Functionally Graded Viscoelastic Materials: Experimental and Numerical ApproachesE.K. NjimS.E. SadiqM.S. Al-Din TahirM.A. FlayyihL. HadjiThis work synthesized a thermoplastic polymer with varying densities along one direction using additive manufacturing technology to study the dynamic and static characteristics of functionally graded viscoelastic materials (FGVMs). To describe the mechanical properties of FGVMs, an analytical formulation based on the sigmoid-law formulation was proposed. The experimental program is conducted on 3D-printed samples, and various tests are conducted to examine the performance of such materials. Furthermore, the finite element method was used to evaluate the structural system's flexural properties. The influences of FG parameters and geometrical properties on flexural and reverse bending fatigue life are analyzed. The results show that increasing porosity from 10% to 30% at a power-law index (k = 2) reduces bending strength by 31.25 percent and deflection by around 11.2 percent for VE samples. Changing the power-law exponent from 0.5 to 10 increases fatigue strength by 35 %.https://journals.pnu.edu.ua/index.php/pcss/article/view/6549fgmpolymeric materialsmechanical behaviorfatiguefea |
| spellingShingle | E.K. Njim S.E. Sadiq M.S. Al-Din Tahir M.A. Flayyih L. Hadji Flexural Bending and Fatigue Analysis of Functionally Graded Viscoelastic Materials: Experimental and Numerical Approaches Фізика і хімія твердого тіла fgm polymeric materials mechanical behavior fatigue fea |
| title | Flexural Bending and Fatigue Analysis of Functionally Graded Viscoelastic Materials: Experimental and Numerical Approaches |
| title_full | Flexural Bending and Fatigue Analysis of Functionally Graded Viscoelastic Materials: Experimental and Numerical Approaches |
| title_fullStr | Flexural Bending and Fatigue Analysis of Functionally Graded Viscoelastic Materials: Experimental and Numerical Approaches |
| title_full_unstemmed | Flexural Bending and Fatigue Analysis of Functionally Graded Viscoelastic Materials: Experimental and Numerical Approaches |
| title_short | Flexural Bending and Fatigue Analysis of Functionally Graded Viscoelastic Materials: Experimental and Numerical Approaches |
| title_sort | flexural bending and fatigue analysis of functionally graded viscoelastic materials experimental and numerical approaches |
| topic | fgm polymeric materials mechanical behavior fatigue fea |
| url | https://journals.pnu.edu.ua/index.php/pcss/article/view/6549 |
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