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

Doddi, Parameswara Rao Venkata; Chanamala, Ratnam; Dora, Siva Prasad

doi:10.1088/2053-1591/ab3dd7

Cited by 14 publications

(13 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The study examined that higher loading of kenaf in developed hybrid composite experienced better tensile and flexural properties. Doddi et al 25 investigated the static and dynamic mechanical properties of pineapple/basalt reinforced epoxy composites by changing their fiber orientation. The results revealed that hybridization of pineapple fabric (PALF) at the inner layer showed higher static and dynamic properties on a higher frequency.…”

Section: Introductionmentioning

confidence: 99%

Accelerated weathering effects on mechanical, thermal and viscoelastic properties of kenaf/pineapple biocomposite laminates for load bearing structural applications

Kumar

Saha

Bhowmik

2021

J of Applied Polymer Sci

View full text Add to dashboard Cite

Natural fibers are exceptional renewable resources to develop biocomposite materials for reducing the negative effects on the environment and producing economical and lightweight materials for load bearing semi‐structural applications. The present study is an attempt to develop kenaf/pineapple reinforced bio‐epoxy biocomposite and investigates thermo‐mechanical and viscoelastic properties under accelerated weathering conditions. The compression molding technique is used to develop biocomposite with four different arrangements of kenaf/pineapple laminates. To perform accelerated weathering, laminates are exposed to ultraviolet radiation and humidity conditions with extreme temperature in weathering tester machine. The tensile, flexural, impact, thermogravimetric analysis, thermal conductivity, viscoelastic properties, and water absorption tests are performed before and after accelerated weathering. The results revealed that the hybridization of kenaf/pineapple laminates showed better interfacial strength and stiffness while reducing the moisture sensitivity under accelerated weathering conditions. The morphology and fracture behavior of biocomposites are examined with scanning electron microscopy.

show abstract

Section: Introductionmentioning

confidence: 99%

Accelerated weathering effects on mechanical, thermal and viscoelastic properties of kenaf/pineapple biocomposite laminates for load bearing structural applications

Kumar

Saha

Bhowmik

2021

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…Lopresto et al [23] studied the mechanical characteristic comparisons of plastic fiber composites with reinforced basalt and glass fibers and noticed that basalt was outmatch and had the prospect of glass being superseded. Investigation by Doddi et al [24] on PALF/Basalt hybrid epoxy composites has shown that PALF hybridization with basalt has an impact on mechanical properties and also demonstrated that hybrid composites with PALF as inner layers and basalt as external layers gives better properties when compared to hybrid composite with PALF as envelope and basalt as core. In their analysis, Todkar et al [25] stated that the fiber orientation effect plays a critical role and longitudinal fibers gives higher mechanical strength than crosswise and random direction.…”

Section: Introductionmentioning

confidence: 99%

“…From the above literature to the best of the authors learning, limited exploration has been done on the study of dynamic properties of PALF hybridized composites and no work has been carried out yet on the impact of fiber orientation and frequency on the dynamic mechanical behavior of PALF and basalt fiber hybrid composites. Henceforth in continuation of earlier work [24] by the authors, hybrid composites were prepared with PALF and basalt fiber as reinforcements and epoxy as matrix by keeping basalt fiber(high modulus) as skin and PALF as core to study the impact of fiber orientation of PALF on dynamic mechanical properties of the hybrid composite at different frequencies and the tensile and flexural properties as well, with an objective to develop high performance composites with good damping properties coupled with increased stiffness.…”

Section: Introductionmentioning

confidence: 99%

Effect of fiber orientation on dynamic mechanical properties of PALF hybridized with basalt reinforced epoxy composites

Doddi

Chanamala

Dora

2020

Mater. Res. Express

Self Cite

View full text Add to dashboard Cite

In this modern era, the natural fibers usage in automobile and construction sectors has been increased. The goal of the current work was to investigate the fiber orientation effect on dynamic mechanical properties of hybrid Pineapple Leaf Fibre (PALF) hybridized with basalt reinforced epoxy composite at changing vibration frequencies. Hand Lay-up technique was used to manufacture the composites by keeping the unidirectional basalt fabric as an outer layer by keeping PALF as inner layer followed by static compression method. Tensile and flexural moduli were also determined apart from storage modulus (E′) and damping factor (tan δ) for different PALF fiber angles. The results exemplified that not only the storage modulus and loss factor but also glass transition temperature (Tg) as well found to increase with frequency and also the fiber orientation angle has a greater impact on dynamic and static properties.

show abstract

“…Because of the high thermal stability of basalt fibers intertwined, the T g of composites shifted to higher temperatures. [ 39 ] Comparing the damping peaks, the alternative skin basalt‐flax layered composite (B5F4A) attained the higher T g (113°C) value. More improvement (122%) in damping was observed for the B2F7 intertwined composite than for the B9 composite, showing a damping value of 0.327.…”

Section: Resultsmentioning

confidence: 99%

“…Natural flax fiber has many porous sites which can dissipate energy. [ 39 ] WLS‐I, skin basalt and more flax layers in the core layering sequence design (B2F7) show a maximum damping value of 0.728 compared to the F2B7 design. An increase in basalt fiber improves the strength and stiffness of natural fiber intertwined composites.…”

Section: Resultsmentioning

confidence: 99%

Mechanical, thermogravimetric, and dynamic mechanical analysis of basalt and flax fibers intertwined vinyl ester polymer composites

Selvaraj¹,

Rajkumar²,

Ramraji³

2022

Polymer Composites

View full text Add to dashboard Cite

The selection of fibers and their stacking sequence, which affect structural integrity and functional properties, are critical parts of polymer composite design. In this work, the influence of various stacking sequences made of basalt and flax fiber layers on the mechanical, thermal, and dynamic mechanical analyses of vinyl ester polymer composites was investigated. The stacking sequence designed by alternate basalt and flax layers showed higher tensile and flexural strengths, with basalt layers in the outer positions. The high‐strength basalt fiber retains considerable stress, particularly in the outer layer, reducing stress transfer to the remaining core layers. The basalt and flax fiber alternative layered sequence with outer basalt layers shows a slightly lower thermal degradation temperature (467°C) than the only basalt layered sequence composite (474°C). Because of the high thermal resistance of the outer basalt layers, heat flow to the next fiber layers is reduced. The dynamic mechanical analysis reveals that the polymer composite intertwined with only basalt fiber was found to have a higher storage modulus. On the other hand, the outer basalt layers intertwined with the core flax layers composite showed a 122% higher damping value than the stacking sequence made of only basalt fiber due to the porous structure of flax fibers dissipating more vibration energy.

show abstract

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

Cited by 14 publications

References 40 publications

Accelerated weathering effects on mechanical, thermal and viscoelastic properties of kenaf/pineapple biocomposite laminates for load bearing structural applications

Accelerated weathering effects on mechanical, thermal and viscoelastic properties of kenaf/pineapple biocomposite laminates for load bearing structural applications

Effect of fiber orientation on dynamic mechanical properties of PALF hybridized with basalt reinforced epoxy composites

Mechanical, thermogravimetric, and dynamic mechanical analysis of basalt and flax fibers intertwined vinyl ester polymer composites

Contact Info

Product

Resources

About