Online ISSN: 2515-8260

Keywords : Finite Element Analysis

Experimental and numerical simulation to predict the Effect of strain rate on tensile response of basalt epoxy woven composite

J. Chafiq; I. Ouchte; M. Ait EL Fqih

European Journal of Molecular & Clinical Medicine, 2021, Volume 8, Issue 3, Pages 2047-2053

The use of sustainable, natural fiber as reinforcement for fabrication of lightweight and low cost composites is
increasingly popular in the engineering fields and it is very important to characterize their mechanical properties unde r different conditions such as varying loading speed. In this present work, the effects of strain rate on the tensile properties of basal t fiber reinforced polymer (BFRP) were investigated. These composites were fabricated hand layup with 12 layer of Basal t fiber Woven Fabric Twill with the ratio of weights of fiber is 50%. Tensile tests of BFRP specimens were conducted at two strain rates 0.1mm/s and 1mm/s using a servo-hydraulic testing system. The tensile strength and elongation increased with increasing strain rate. Moreover, tensile modulus was independent of varying of strain rate. The experiment tensile results and the finite element an alysis outcomes for BFRP agree with each other, which validates the numerical results .

Finite Element Analysis Of Porous Aluminium Aa3003 Alloy Under Compression And Bending Loading

Basem Mohysen Al- Zubaidy; AbdulRaheem Kadhim AbidAli; Noor Hmoud Athaib

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 6, Pages 735-746

Recently, the demand to analyse the performance of metal foams is increased due to the increase in use of them in different engineering applications. In this study, two types of porous metals were finite element (FE) modelled in terms of pore size and distribution (uniform and random) with three pores’ volume fractions (15, 40, and 65%). Uniformly distributed pores were analysed based on a tetrahedron cell. Conversely, the data of the size and location of each pore in the random porous metal were generated using Microsoft excel software. Two types of test samples were modelled, compressive and bending. The results showed that the location of the maximum Von-Mises stress for uniformly pores metal in the compression test was located in the vertical walls between pores. Whereas it located in the upper or the lower surface at the centre of the bending sample. The samples with random distribution pores show more complex behaviour due to the non-uniform thickness of walls between the pores. However, the maximum stress found to be located at the thinner vertical walls between the pores for the compression sample. Nevertheless, the maximum stress was located at the thinnest horizontal walls, near the location of the maximum bending moment.