- All Journals
- Al-Qadisiyah University
- Basrah University
- Kirkuk University
- Mosul University
- The Iraqi Borad for Medical Specialization
- University of Anbar
- University of Technology
- Al Mustafa University
- Al-Zahraa University for Women
- Alnoor University
- Kunooz University
- Misan University
- Ninevah University
- Tikrit University
- University of Al-Hamdaniya
- University of Kerbala
Poisson's Ratio as a Function of Time in Composite Material of Viscoelastic Behavior by Depending on Creep Test | ||
| Engineering and Technology Journal | ||
| Article 1, Volume 29, Issue 3, 2011, Pages 488-498 PDF (233.25 K) | ||
| DOI: 10.30684/etj.29.3.7 | ||
| Author | ||
| Azhar Sabah Ameed | ||
| Abstract | ||
| In viscoelastic behavior of composite material, such as those made of thermo-set polyester and one layer random fiber glass, the Poisson’s ratio is described in new function of time and stress. The relaxation stress is obtained experimentally to describe the non-linear viscoelastic behavior in composite material. The results show that, Poisson’s ratio increases with an approximate rate of 16% as a result of the increasing stress from 6.877 MPa to 8.239 MPa and decreases with increasing the time at constant temperature 30 Co. The investigation demonstrated that such time dependence is not a necessary consequence of the theory of viscoelasticity to describe viscoelasticity behavior. | ||
| Keywords | ||
| viscoelastic behavior; composite material; thermo; set polyester; the relaxation stress | ||
|
Statistics Article View: 308 PDF Download: 175 |
||