دانشگاه سیستان و بلوچستان

  اخبار و اعلانات

 آمار

تعداد نشریات27
تعداد شماره‌ها604
تعداد مقالات6,158
تعداد مشاهده مقاله9,077,117
تعداد دریافت فایل اصل مقاله5,928,454
zamani, ehsan, mohamadipoor, reza, Pol, mohammad. (1399). Determination of tensile and flexural mechanical properties of polymer nanocomposites, by a non-linear damage model and experimental study. نشریه علمی دانشگاه سیستان و بلوچستان, 9(1), 23-34. doi: 10.22111/cnmst.2021.38817.1214
ehsan zamani; reza mohamadipoor; mohammad hossein Pol. "Determination of tensile and flexural mechanical properties of polymer nanocomposites, by a non-linear damage model and experimental study". نشریه علمی دانشگاه سیستان و بلوچستان, 9, 1, 1399, 23-34. doi: 10.22111/cnmst.2021.38817.1214
zamani, ehsan, mohamadipoor, reza, Pol, mohammad. (1399). 'Determination of tensile and flexural mechanical properties of polymer nanocomposites, by a non-linear damage model and experimental study', نشریه علمی دانشگاه سیستان و بلوچستان, 9(1), pp. 23-34. doi: 10.22111/cnmst.2021.38817.1214
zamani, ehsan, mohamadipoor, reza, Pol, mohammad. Determination of tensile and flexural mechanical properties of polymer nanocomposites, by a non-linear damage model and experimental study. نشریه علمی دانشگاه سیستان و بلوچستان, 1399; 9(1): 23-34. doi: 10.22111/cnmst.2021.38817.1214

Determination of tensile and flexural mechanical properties of polymer nanocomposites, by a non-linear damage model and experimental study

Challenges in Nano and Micro Scale Science and Technology
دوره 9، شماره 1، خرداد 2021، صفحه 23-34  XML اصل مقاله (2.26 M)
نوع مقاله: Original Research Paper
شناسه دیجیتال (DOI): 10.22111/cnmst.2021.38817.1214
نویسندگان
ehsan zamani email orcid 1؛ reza mohamadipoor2؛ mohammad hossein Pol3
1Dept. of Mechanical engineering- Shahrekord university- Sharekord- Iran
2Dept. of meh. eng., shahrekord university, shahrekord. Iran
3Dept. of mech. eng., tafresh university, tafresh, Iran
چکیده
The present paper aims to study the effects of different mass fractions of silica nanoparticles on the tensile, compressive, and flexural mechanical properties of polymer composites via experimental methods and non-linear damage model. Epoxy polymers consist of two parts: the first part has a low viscosity, ML-506, as the epoxy base, and the second part contains a polyamide as a hardener, HA-11. Spherical silica nanoparticles with four different mass fractions of 0, 0.2, 0.5 and 1 % are dispersed into the epoxy polymer system under two different ultrasonic times. The tensile and flexural mechanical properties of the prepared samples are determined using standard tests. Experimental measurements show that the mechanical properties of polymer composites improve with increasing mass fraction of nanoparticles. In addition, increasing the ultrasonic time from half-an-hour to one hour is further improves the mechanical properties of polymer composites. A non-linear damage model based on the Weibull theory is used to interpret the flexural stress–strain relationships of the tested materials. The parameters in this model are tensile modulus E, Weibull scale parameter σ0 and Weibull shape parameter β. A good agreement is seen between the results of the stress-strain curve obtained from the above mentioned model and experimental results.
کلیدواژه‌ها
Polymer؛ Composites؛ Stress/Strain relationship؛ Non-linear Damage Model؛ Scanning Electron Microscopy (SEM)
آمار
تعداد مشاهده مقاله: 114
تعداد دریافت فایل اصل مقاله: 74


سامانه مدیریت نشریات علمی. قدرت گرفته از سیناوب