Evaluation of mechanical properties of hybrid composite laminates reinforced with glass/carbon woven fabrics

Nowadays natural fibre composites have gained great significance as reinforcements in polymer matrix composites. Composite material based on a polymer matrix reinforced with natural fibres is extensively used in industry due to their biodegradability, recyclability, low density and high specific properties. A study has been carried out here to investigate the fibre volume fraction effect of hemp fibre woven fabrics/PolyPropylene (PP) composite laminates on the tensile properties and impact hammer impact test. Initially, composite sheets were fabricated by the thermal-compression process with desired number of fabric layers to obtain composite laminates with different fibre volume fraction. Uniaxial, shear and biaxial tensile tests were performed and mechanical properties were calculated. Impact hammer test was also carried out to estimate the frequency and damping parameters of stratified composite plates. Scanning Electron Microscope (SEM) analysis was performed to observe the matrix and fibre constituent defects. Hemp fabrics/PP composite laminates exhibits viscoelastic behaviour and as the fibre volume fraction increases, the viscoelastic behaviour decreases to elastic behaviour. Due to this, the tensile strength increases as the fibre content increases. On the other hand, the natural frequency increases and damping ratio decrease as the fibre volume fraction increases.

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Experimental and theoretical investigations into the mechanical properties of thermoplastic titanium-FRP hybrid composite laminates

10.14711/thesis-991012889468203412 ◽

2020 ◽

Author(s):

MohammadErfan Kazemi

Keyword(s):

Mechanical Properties ◽

Hybrid Composite ◽

Composite Laminates ◽

Theoretical Investigations

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Designing Composites for Graceful Failure

Volume 3: Advanced Materials: Design, Processing, Characterization, and Applications ◽

10.1115/imece2020-23039 ◽

2020 ◽

Author(s):

Amany Micheal ◽

Yehia Bahei-El-Din ◽

Mahmoud E. Abd El-Latief

Keyword(s):

Mechanical Properties ◽

Energy Dissipation ◽

Composite Laminates ◽

Ultimate Load ◽

Low Cost ◽

Cost Effective ◽

Carbon Composite ◽

Three Point Bending ◽

Glass Carbon ◽

Effective Product

Abstract When inevitable, failure in composite laminates is preferred to occur gracefully to avoid loss of property and possibly life. While the inherent inhomogeneity leads to slow dissipation of damage-related energy, overall failure is fiber-dominated and occurs in a rather brittle manner. Multidirectional plies usually give a more ductile response. Additionally, stiffness and strength as well as cost are important factors to consider in designing composite laminates. It is hence desirable to optimize for high mechanical properties and low cost while keeping graceful failure. Designing composite laminates with hybrid systems and layups, which permit gradual damage energy dissipation, are two ways proposed in this work to optimize for mechanical properties while avoiding catastrophic failure. In the hybrid system design, combining the less expensive glass reinforced plies with carbon reinforced plies offers a cost-effective product, marginal mechanical properties change and ductile profile upon failure. Hybrid glass/carbon composite laminates subjected to three-point bending showed strain to failure which is double that measured for carbon composite specimens, without affecting the ultimate load. Energy dissipation mechanisms were also created by building laminates which were intentionally made discontinuous by introducing cuts in the fibers of the interior plies. This created a longer path for damage before cutting through the next ply resulting in double failure strain with marginal reduction in load. The effect of fiber discontinuity in terms of spacing and distribution are among the factors considered.

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

Materials Research Express ◽

10.1088/2053-1591/ab3dd7 ◽

2019 ◽

Vol 6 (10) ◽

pp. 105343 ◽

Cited By ~ 2

Author(s):

Parameswara Rao Venkata Doddi ◽

Ratnam Chanamala ◽

Siva Prasad Dora

Keyword(s):

Mechanical Properties ◽

Hybrid Composite ◽

Composite Laminates ◽

Dynamic Mechanical Properties ◽

Dynamic Mechanical

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Studying the effect of different carbon and glass fabric stacking sequence on mechanical properties of epoxy hybrid composite laminates

Composites Communications ◽

10.1016/j.coco.2020.100425 ◽

2020 ◽

Vol 21 ◽

pp. 100425 ◽

Cited By ~ 1

Author(s):

K.C. Nagaraja ◽

S. Rajanna ◽

G.S. Prakash ◽

Praveennath G. Koppad ◽

M. Alipour

Keyword(s):

Mechanical Properties ◽

Hybrid Composite ◽

Composite Laminates ◽

Glass Fabric ◽

Stacking Sequence

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Hybrid composite laminates reinforced with flax-basalt-glass woven fabrics for lightweight load bearing structures

Journal of Industrial Textiles ◽

10.1177/1528083720960743 ◽

2020 ◽

pp. 152808372096074

Author(s):

Mohamed A Attia ◽

Marwa A Abd El-baky ◽

Mostafa M Abdelhaleem ◽

Mohamed A Hassan

Keyword(s):

Mechanical Properties ◽

Composite Laminates ◽

Failure Modes ◽

Woven Fabrics ◽

Plane Shear ◽

Load Bearing ◽

Impact Properties ◽

Basalt Glass ◽

Interlaminar Shear ◽

The Impact

An experimental investigation on the mechanical performance of interlayer hybrid flax-basalt-glass woven fabrics reinforced epoxy composite laminates has been performed. The tensile, flexural, in-plane shear, interlaminar shear, bearing, and impact properties of the fabricated laminates were investigated. Test specimens were fabricated using vacuum bagging process. Failure modes of all specimens were recorded and discussed. Results proved that the mechanical properties of flax-basalt-glass hybrid laminates are highly dominated by the reinforcement combinations and plies stacking sequence. Hybridizing flax fiber reinforced composite with basalt and/or glass fabrics provides an effective method for enhancing its tensile, flexural, in-plane shear, interlaminar shear, and bearing properties as well as controls the impact strength of the composite. The fabricated hybrids are found to have good specific mechanical properties benefits. Amongst the studied flax/basalt/glass hybrids, FBGs has the highest tensile properties, GBFs has the highest flexural and impact properties, and GFBs has the best shear and bearing properties. Flax-basalt-glass hybrid composites with different layering sequence seem to be an appropriate choice for lightweight load bearing structures.

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Hybrid Composite Laminates Reinforced with Kevlar/Carbon/Glass Woven Fabrics for Ballistic Impact Testing

The Scientific World JOURNAL ◽

10.1155/2014/413753 ◽

2014 ◽

Vol 2014 ◽

pp. 1-7 ◽

Cited By ~ 37

Author(s):

Elias Randjbaran ◽

Rizal Zahari ◽

Nawal Aswan Abdul Jalil ◽

Dayang Laila Abang Abdul Majid

Keyword(s):

Energy Absorption ◽

Hybrid Composite ◽

Composite Laminates ◽

Impact Resistance ◽

Equal Mass ◽

Woven Fabrics ◽

Ballistic Impact ◽

Impact Testing ◽

Stacking Sequence ◽

Ballistic Test

Current study reported a facile method to investigate the effects of stacking sequence layers of hybrid composite materials on ballistic energy absorption by running the ballistic test at the high velocity ballistic impact conditions. The velocity and absorbed energy were accordingly calculated as well. The specimens were fabricated from Kevlar, carbon, and glass woven fabrics and resin and were experimentally investigated under impact conditions. All the specimens possessed equal mass, shape, and density; nevertheless, the layers were ordered in different stacking sequence. After running the ballistic test at the same conditions, the final velocities of the cylindrical AISI 4340 Steel pellet showed how much energy was absorbed by the samples. The energy absorption of each sample through the ballistic impact was calculated; accordingly, the proper ballistic impact resistance materials could be found by conducting the test. This paper can be further studied in order to characterise the material properties for the different layers.

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