An investigation on dynamic mechanical properties of hybrid composite materials

2021 ◽  
Author(s):  
M.R. Abhishek ◽  
P.M. Suresh ◽  
N. Ranganath ◽  
D.P. Girish
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Hybrid Composite ◽  
Dynamic Mechanical Properties ◽  
Dynamic Mechanical

Dynamic mechanical properties of epoxy based PALF/basalt hybrid composite laminates

2019 ◽  
Vol 6 (10) ◽  
pp. 105343 ◽  
Author(s):  
Parameswara Rao Venkata Doddi ◽  
Ratnam Chanamala ◽  
Siva Prasad Dora
Keyword(s):  
Mechanical Properties ◽  
Hybrid Composite ◽  
Composite Laminates ◽  
Dynamic Mechanical Properties ◽  
Dynamic Mechanical

Dynamic mechanical behavior of composite materials reinforced by graphene and huntite minerals

2021 ◽  
Vol 63 (12) ◽  
pp. 1090-1096
Author(s):  
Dilek Atilla ◽  
Binnur Gören
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Storage Modulus ◽  
Loss Modulus ◽  
Damping Ratio ◽  
Weight Percent ◽  
Dynamic Mechanical Properties ◽  
Grain Structure ◽  
Dynamic Mechanical ◽  
Pure Resin

Abstract The aim of this study is to investigate the dynamic mechanical properties of composite materials reinforced by mineral experimentally. Graphene and huntite minerals were added to epoxy resin at different weight ratios (wt.-%) as 0.5 weight percent, 1 weight percent and 3 weight percent, to examine the effect of mineral types and percentages on the resulting dynamic mechanical properties. In addition, the effect of non-layered huntite unlike graphene, with a nano-sized grain structure, was investigated. Thus, glass transition temperature (Tg), storage modulus (E’), loss modulus (E”) and damping ratio (tan δ) values were determined and compared. Moreover, a tensile test was performed in order to explain the relation between stress and strain. It was seen that adding different minerals caused different results according to types and proportions. In general, adding minerals to the pure resin increased the storage modulus and loss modulus, whereas the damping ratio (tan δ) decreased compared to the pure resin.

Strain rates effect of dynamic compression properties of E-glass / jute composite

2020 ◽  
Vol 14 (3) ◽  
pp. 7162-7169
Author(s):  
Muhamad Shahirul Mat Jusoh ◽  
Mohd Yazid Yahya ◽  
Haris Ahmad Israr Ahmad
Keyword(s):  
Mechanical Properties ◽  
Hybrid Composite ◽  
Split Hopkinson Pressure Bar ◽  
Dynamic Testing ◽  
Dynamic Compression ◽  
Compressive Strain ◽  
Dynamic Mechanical Properties ◽  
Strain Rates ◽  
Hopkinson Pressure Bar ◽  
Dynamic Mechanical

Presently, the application of natural fibres widely gains attention from academia and industries as an alternative material in the composite system. The introduction of the hybrid composite using natural and synthetic fibres is extensively investigated on the static mechanical properties. However, the investigation on the high strain-rates effect is less reported due to the difficulty of the experimental set-up as well as the limitation of dynamic testing apparatus. The split Hopkinson pressure bar (SHPB) was utilised in this present study to characterise the dynamic mechanical properties of the hybrid composite between E-glass with jute fibres at three different strain rates of 755, 1363, and 2214 s−1. Results showed that the dynamic compression stress and strain of the tested samples significantly influenced by the value of strain rates applied. The E-glass/jute sample exhibited the strain-rate dependent behaviour, whereby the higher dynamic mechanical properties were recorded when the higher strain rates were imposed. The difference between maximum dynamic stress was 12.1 and 23.9% when the strain rates were increased from 755 to 1363 s−1 and 1363 to 2214 s−1, respectively. In terms of compressive strain, the maximum compressive strain was recorded when the lower strain rates were imposed during testing.

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