Vol.25, No.3, 2025, pp. 433–443
https://doi.org/10.69644/ivk-2025-03-0433

EXPERIMENTAL INVESTIGATION ON THE EFFECT OF SiO2 NANO PARTICLES IN AXIAL CREEP RUPTURE BEHAVIOUR OF GFRP

Mohammad Afzali1, Ali Ghorbanpour Arani1* , Zahra Khoddami Maraghi2

1) Department of Solid Mechanics, Faculty of Mechanical Engineering, University of Kashan, Kashan, IRAN

A. Ghorbanpour Arani https://orcid.org/0000-0001-5754-0786 , *email: aghorban@kashanu.ac.ir

2) Faculty of Engineering, Mahallat Institute of Higher Education, Mahallat, IRAN

 

Abstract

Creep strength evaluation is vital for structural materials used in high-temperature applications, like Glass Fibre-Reinforced Polymers (GFRP) in industries such as aerospace, automotive, and marine. Factors like creep behaviour, rupture time, load, and strain are crucial for material design due to extreme working conditions. This study investigates GFRP's creep rupture behaviour reinforced with nanoparticles, examining varied nano SiO2 content (1 %, 2 %, 3 % wt.) and fibre orientations (0°, 15°, 30°, 45°). Tensile tests are conducted per ASTM D2990 standard to assess material strength, aiding in determining the necessary creep load rate for universal testing machine configuration. Creep tests are performed under axial loads at temperatures ranging from 50 °C to 140 °C. At 110 °C, the highest strain (0.9 %) is observed for 45° and 15° orientations, while 0° and 30° orientations exhibit the lowest strain. All structures show maximal strain at 110 °C, reaching 1 % for 45° and 15° orientations, and least strain for 0° and 30° orientations. Nanoparticle effects vary across orientations, with up to 2 % wt. resulting in increased strain rates at different temperatures. Notably, the 15° and 45° orientations display distinct responses.

Keywords: • creep rupture • GFRP • ultimate tensile strength • axial loads • SiO2 nano particles

full article (1.46 MB)