Predictions of young's modulus of inorganic fibrous particulate-reinforced polymer composites

2013 ◽  
Vol 130 (4) ◽  
pp. 2957-2961 ◽  
Author(s):  
Ji-Zhao Liang
Keyword(s):  
Polymer Composites ◽  
Young’S Modulus ◽  
Young's Modulus ◽  
Reinforced Polymer ◽  
Particulate Reinforced

Modelling and testing of ageing of short fibre reinforced polymer composites

2011 ◽  
Vol 226 (1) ◽  
pp. 16-31 ◽  
Author(s):  
A Młyniec ◽  
T Uhl
Keyword(s):  
Polymer Composites ◽  
Young’S Modulus ◽  
Young's Modulus ◽  
Experimental Results ◽  
Short Fibre ◽  
Computation Method ◽  
Fibre Alignment ◽  
Reinforced Polymer ◽  
Temperature Ageing ◽  
Fibre Reinforced Polymer

A study in accelerated humidity–temperature ageing and it is numerical modelling for short fibre reinforced polymer composites (SFRPC) based on poly(butylene terephthalate) (PBT) is reported. Authors described experimental results of humidity–temperature ageing of PBT reinforced with glass fibres and proposed a novel computation method of strength and durability analysis for SFRPC parts. Experimental results showed different ageing behaviours, which depend on fibre alignment, e.g. a decrease of Young’s modulus in longitudinal fibre alignment in tension after ageing, an increase of Young’s modulus in transverse direction in tension after ageing, and the increase of the shear modulus and decrease of shear strength after ageing in both directions. Proposed modelling procedure takes the fibre orientation from mould filling analysis as an independent material orientation, using a developed ageing dependent material model, based on tensile, compressive, and shear properties for longitudinal and transverse fibre alignments, and calculates failure criteria as a function of the ageing time and fibre alignment. An innovative approach is to create a fibre alignment dependent material ageing model which takes into account changes of material properties depending on the direction of the reinforcement. This methodology was extended to arbitrary models and validated on real parts made of SFRPC.

Mechanical Properties and Decay Resistance of Wood Polymer Composites (WPC)

2011 ◽  
Vol 264-265 ◽  
pp. 819-824 ◽  
Author(s):  
Md. Rezaur Rahman ◽  
Sinin Hamdan ◽  
M. Saiful Islam ◽  
Md. Shahjahan Mondol
Keyword(s):  
Polymer Composites ◽  
Young’S Modulus ◽  
Modulus Of Elasticity ◽  
Young's Modulus ◽  
Decay Resistance ◽  
Modulus Of Rupture ◽  
Wood Polymer ◽  
Static Young’S Modulus ◽  
Wood Polymer Composites ◽  
Wood Polymer Composite

In Malaysia, especially Borneo Island Sarawak has a large scale of tropical wood species. In this study, selected raw tropical wood species namely Artocarpus Elasticus, Artocarpus Rigidus, Xylopia Spp, Koompassia Malaccensis and Eugenia Spp were chemically treated with sodium meta periodate to convert them into wood polymer composites. Manufactured wood polymer composites were characterized using mechanical testing (modulus of elasticity (MOE), modulus of rupture (MOR), static Young’s modulus) and decay resistance test. Modulus of elasticity and modulus of rupture were calculated using three point bending test. Static Young’s modulus and decay resistance were calculated using compression parallel to gain test and natural laboratory decay test respectively. The manufactured wood polymer composites yielded higher modulus of elasticity, modulus of rupture and static Young’s modulus. Wood polymer composite had high resistant to decay exposure, while Eugenia Spp wood polymer composite had highly resistant compared to the other ones.

Fatigue Behavior of Particulate-Reinforced Polymer Composites

2021 ◽  
pp. 155-171
Author(s):  
Vijay Verma ◽  
Arun Kumar Pandey ◽  
Chaitanya Sharma
Keyword(s):  
Polymer Composites ◽  
Fatigue Behavior ◽  
Reinforced Polymer ◽  
Particulate Reinforced

Application of the modified hybrid rule of mixture (ROHM) and Halpin– Tsai equation for predicting mechanical properties of wood/hemp/polymer composites

2019 ◽  
Vol 106 ◽  
pp. 4-8
Author(s):  
CEZARY GOZDECKI
Keyword(s):  
Mechanical Properties ◽  
Mathematical Models ◽  
Polymer Composites ◽  
Young’S Modulus ◽  
Polymer Composite ◽  
Hybrid Composites ◽  
Young's Modulus ◽  
Wood Polymer ◽  
Wood Particles ◽  
Wood Polymer Composite

Application of the modified hybrid rule of mixture (ROHM) and Halpin–Tsai equation for predicting mechanical properties of wood/hemp/polymer composites. An object of investigations was hybrid wood-polymer composite containing HDPE, hemp fibers and wood particles. The degree of addition of hemp and wood particles ranged from 0 to 60% of filler. The usefulness of the mathematical models ROHM and Halpin-Tsai to predict the Young's modulus of composites was tested. Additionally, experimental research was carried out. It was found that the hemp content in the wood-polymer composite significantly influences the growth of the composite module. The usefulness of mathematical models for predicting the Young's modulus of hybrid composites was also confirmed.

Effective reinforcement in carbon nanotube–polymer composites

2008 ◽  
Vol 366 (1870) ◽  
pp. 1613-1626 ◽  
Author(s):  
W Wang ◽  
P Ciselli ◽  
E Kuznetsov ◽  
T Peijs ◽  
A.H Barber
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Polymer Composites ◽  
Young’S Modulus ◽  
Young's Modulus ◽  
Fibrous Materials ◽  
Predicted Values ◽  
Materials Used ◽  
Effective Reinforcement

Carbon nanotubes have mechanical properties that are far in excess of conventional fibrous materials used in engineering polymer composites. Effective reinforcement of polymers using carbon nanotubes is difficult due to poor dispersion and alignment of the nanotubes along the same axis as the applied force during composite loading. This paper reviews the mechanical properties of carbon nanotubes and their polymer composites to highlight how many previously prepared composites do not effectively use the excellent mechanical behaviour of the reinforcement. Nanomechanical tests using atomic force microscopy are carried out on simple uniaxially aligned carbon nanotube-reinforced polyvinyl alcohol (PVA) fibres prepared using electrospinning processes. Dispersion of the carbon nanotubes within the polymer is achieved using a surfactant. Young's modulus of these simple composites is shown to approach theoretically predicted values, indicating that the carbon nanotubes are effective reinforcements. However, the use of dispersant is also shown to lower Young's modulus of the electrospun PVA fibres.

Sign in / Sign up

Export Citation Format

Share Document