| Title: | Fabrication and mechanical testing of the uniaxial graded auxetic damper |
|---|
| Authors: | ID Al-Rifaie, Hasan (Author)
ID Novak, Nejc (Author)
ID Vesenjak, Matej (Author)
ID Ren, Zoran (Author)
ID Sumelka, Wojciech (Author) |
|---|
| Files: |  materials-15-00387-v2.pdf (7,31 MB)
MD5: 18863DCD93470CE7EBE9E483486633DC
 https://www.mdpi.com/1996-1944/15/1/387
|
|---|
| Language: | English |
|---|
| Work type: | Scientific work |
|---|
| Typology: | 1.01 - Original Scientific Article |
|---|
| Organization: | FS - Faculty of Mechanical Engineering
|
|---|
| Abstract: | Auxetic structures can be used as protective sacrificial solutions for impact protection with lightweight and excellent energy-dissipation characteristics. A recently published and patented shock-absorbing system, namely, Uniaxial Graded Auxetic Damper (UGAD), proved its efficiency through comprehensive analytical and computational analyses. However, the authors highlighted the necessity for experimental testing of this new damper. Hence, this paper aimed to fabricate the UGAD using a cost-effective method and determine its load–deformation properties and energy-absorption potential experimentally and computationally. The geometry of the UGAD, fabrication technique, experimental setup, and computational model are presented. A series of dog-bone samples were tested to determine the exact properties of aluminium alloy (AW-5754, T-111). A simplified (elastic, plastic with strain hardening) material model was proposed and validated for use in future computational simulations. Results showed that deformation pattern, progressive collapse, and force–displacement relationships of the manufactured UGAD are in excellent agreement with the computational predictions, thus validating the proposed computational and material models. |
|---|
| Keywords: | uniaxial graded auxetic damper, energy absorber, mechanical properties, finite element method, explicit solver |
|---|
| Publication status: | Published |
|---|
| Publication version: | Version of Record |
|---|
| Submitted for review: | 30.10.2021 |
|---|
| Article acceptance date: | 25.12.2021 |
|---|
| Publication date: | 05.01.2022 |
|---|
| Publisher: | MDPI AG |
|---|
| Year of publishing: | 2022 |
|---|
| Number of pages: | 15 str. |
|---|
| Numbering: | Vol. 15, iss. 1 |
|---|
| PID: | 20.500.12556/DKUM-84823  |
|---|
| UDC: | 539.3:620.1 |
|---|
| ISSN on article: | 1996-1944 |
|---|
| COBISS.SI-ID: | 92179459 |
|---|
| DOI: | 10.3390/ma15010387 |
|---|
| Copyright: | © 2022 by the authors |
|---|
| Publication date in DKUM: | 28.07.2023 |
|---|
| Views: | 676 |
|---|
| Downloads: | 866 |
|---|
| Metadata: |    |
|---|
| Categories: | Misc.
|
|---|
|
:
|
Copy citation |
|---|
| | | | Average score: | (0 votes) |
|---|
| Your score: | Voting is allowed only for logged in users. |
|---|
| Share: |  |
|---|
Hover the mouse pointer over a document title to show the abstract or click
on the title to get all document metadata. |
