Investigation On Mechanical Behavior Of Woven Fabric Glass/Kevlar Hybrid Composite Laminates Made Of Varying Fibre Inplane Orientation And Stacking Sequence

2017 ◽  
Vol 4 (8) ◽  
pp. 8928-8937 ◽  
Author(s):  
A. Srivathsan ◽  
B. Vijayaram ◽  
R. Ramesh ◽  
Gokuldass
Keyword(s):  
Mechanical Behavior ◽  
Hybrid Composite ◽  
Composite Laminates ◽  
Woven Fabric ◽  
Stacking Sequence

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

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
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.

scholarly journals The influence of the inter-ply hybridisation on the mechanical performance of composite laminates: Experimental and numerical analysis

2021 ◽  
Vol 104 (2) ◽  
pp. 003685042110232
Author(s):  
Hussein Dalfi ◽  
Anwer J Al-Obaidi ◽  
Hussein Razaq
Keyword(s):  
Elastic Constants ◽  
Hybrid Composite ◽  
Composite Laminates ◽  
Failure Modes ◽  
Mechanical Response ◽  
Mechanical Performance ◽  
Numerical Study ◽  
Geometric Model ◽  
Woven Fabric ◽  
The Impact

Recently, high tensile fibres composite laminates (i.e. glass composite laminates) have been widely used in the civil and military applications due to their superior properties such as lightweight, fatigue and corrosion resistance compared to metals. Nevertheless, their brittle fracture behaviour is a real downside for many sectors. In the present study, the impact of the hybridisation of Kevlar woven layers with glass woven layers on the reducing the strain failure problem in pure glass woven laminates is investigated. In this work, multi-layers Kevlar-glass with different stacking sequences have been used to prepare the hybrid composite laminates using vacuum–assisted resin moulding method. The influence of the layers hybridisation on the mechanical performance of composites laminates was investigated using tensile strength tests. Furthermore, finite element analysis is performed to analyse the mechanical response of the hybrid composite laminates using Abaqus software. The elastic constants of woven fabric layers in the numerical study were predicted through geometric model based on the textile geometry and analytical method in order to assert accuracy of the predicted elastic constants. The experimental results showed that the hybrid composite laminates tend to fail more slowly than glass woven laminates, which illustrates low strain to failure. In the theoretical part of the study, it was found that the proposal model can be useful to capture the mechanical behaviour and the damage failure modes of hybrid laminates. Thus, the catastrophic failure can be avoided in these laminates.

Effects of stacking sequence of pineapple leaf-flax reinforced hybrid composite laminates on mechanical characterization and moisture resistant properties

2021 ◽  
pp. 095440622110231
Author(s):  
Santosh Kumar ◽  
Abir Saha
Keyword(s):  
Tensile Strength ◽  
Shear Strength ◽  
Flexural Strength ◽  
Impact Energy ◽  
Hybrid Composite ◽  
Composite Laminates ◽  
Volume Fraction ◽  
Stacking Sequence ◽  
Flax Fibers ◽  
Moisture Resistant

The present study aims to investigate the effects of stacking sequence on physical, mechanical and moisture resistant properties of pineapple leaf fiber (PF) and flax fiber (FF) reinforced composite laminates. The non-hybrid and hybrid composite laminates are fabricated by using vacuum assisted resin infusion molding process (VARIM) with an inter-ply configuration. From the results, the maximum tensile strength (219.3 MPa), flexural strength (132.4 MPa), shear strength (39.1 MPa) and impact energy (50.2 J) have been recorded for FFRP composites while the minimum for PFRP (124.7 MPa, 52.3 MPa, 4.3 MPa, and 23.3 J) respectively. For hybrid composite laminates, the increase in volume fraction of flax fiber, improved the mechanical and moisture resistant properties while an increase in the volume fraction of PALF enhanced the elongation and flexibility of the developed composites. Furthermore, it observed that, stacking sequence configuration of flax fibers as outer layer exhibited better tensile, flexural, impact and moisture properties while flax fibers at inner layer examined maximum shear properties. Therefore, among hybrid composites, H7 recorded maximum tensile strength, flexural strength and impact energy (207.7 MPa, 121.7 MPa and 48.8 J) while H5 recorded maximum shear strength (24.2 MPa). The water absorption and chemical resistant behaviour of fabricated laminates with five different combinations of solution (distilled water, seawater, hydrochloric acid, sulphuric acid and sodium carbonate) are examined and revealed that hybrid composite laminates have better resistance to water and chemical uptake. The morphology and fracture analysis of composite laminates are analyzed with scanning electron microscopy (SEM). Overall, the developed hybrid composite laminates have lighter weight, economical and better interfacial bonding with improved mechanical and moisture properties for distinct load-bearing applications.

scholarly journals Impact Strength of Glass/Kevlar Fiber Hybrid Composites with Various Stacking Sequences and Impact Energies

2019 ◽  
Vol 8 (6) ◽  
pp. 4286-4293
Keyword(s):  
Impact Strength ◽  
Impact Loading ◽  
Hybrid Composite ◽  
Composite Laminates ◽  
Hybrid Composites ◽  
Impact Resistance ◽  
Weight Ratio ◽  
Stacking Sequence ◽  
Kevlar Fiber ◽  
The Impact

Hybrid composites have been considered as modern materials for many engineering applications, yet there is still a major concern on the influence of stacking sequence configuration in hybrid composite laminates especially under impact loading. Therefore, the focus of this paper is to determine the optimized stacking sequence of glass/Kevlar fiber hybrid composite laminates under impact loading. Hybrid composite laminates were fabricated using vacuum bagging method with four different stacking sequences known as H1, H2, H3 and H4. Low velocity drop weight impact test (ASTM D7136) was conducted using a hemispherical nose impactor diameter of 12 mm with a mass of 6 kg at impact energy levels of 10 J, 20 J, 30 J, and 40 J. From the results obtained, H3 specimen which has a stacking sequence of glass fiber in the exterior part with Kevlar fiber in the interior part was concluded as the optimized stacking sequence with better impact resistance properties. H3 specimen recorded a higher value in peak load, maximum initiation energy, high impact strength, high strength to weight ratio and high total energy absorbed to weight ratio. In addition, it was observed that H3 specimen has less damaged area compared to H1, H2, and H4 specimens. This study contributes knowledge on the impact resistance properties of hybrid composite laminates which will be much useful for material selection and product development.

Effect of Layering Sequence on Impact Properties of Alkali Treated Phoenix Pusilla Fibers-Glass-Carbon Fabrics Reinforced Hybrid Composite Laminates

2021 ◽  
pp. 1-11
Author(s):  
Madhu Puttegowda ◽  
Sanjay Mavinkere Rangappa ◽  
Anish Khan ◽  
Salma Ahmed Al-Zahrani ◽  
Ahmed Al Otaibi ◽  
...  
Keyword(s):  
Hybrid Composite ◽  
Composite Laminates ◽  
Impact Properties ◽  
Glass Carbon ◽  
Carbon Fabrics

IMPACT RESISTANCE PROPERTIES OF KEVLAR/GLASS FIBER HYBRID COMPOSITE LAMINATES

2015 ◽  
Vol 76 (3) ◽  
Author(s):  
Norazean Shaari ◽  
Aidah Jumahat ◽  
M. Khafiz M. Razif
Keyword(s):  
Glass Fiber ◽  
Hybrid Composite ◽  
Composite Laminates ◽  
Impact Damage ◽  
Impact Resistance ◽  
Impact Behavior ◽  
Slight Reduction ◽  
Depth Of Penetration ◽  
Damage Degree ◽  
The Impact

In this paper, the impact behavior of Kevlar/glass fiber hybrid composite laminates was investigated by performing the drop weight impact test (ASTM D7136). Composite laminates were fabricated using vacuum bagging process with an epoxy matrix reinforced with twill Kevlar woven fiber and plain glass woven fiber. Four different types of composite laminates with different ratios of Kevlar to glass fiber (0:100, 20:80, 50:50 and 100:0) were manufactured. The effect of Kevlar/glass fiber content on the impact damage behavior was studied at 43J nominal impact energy. Results indicated that hybridization of Kevlar fiber to glass fiber improved the load carrying capability, energy absorbed and damage degree of composite laminates with a slight reduction in deflection. These results were further supported through the damage pattern analysis, depth of penetration and X-ray evaluation tests. Based on literature work, studies that have been done to investigate the impact behaviour of woven Kevlar/glass fiber hybrid composite laminates are very limited. Therefore, this research concentrates on the effect of Kevlar on the impact resistance properties of woven glass fibre reinforced polymer composites.

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