Effects of porosity on the cure kinetics and residual stress of a porous polymer

Dewangan, Bhishm; Chakladar, N.D.

doi:10.1016/j.mtcomm.2023.105711

Cited by 2 publications

References 55 publications

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Influence of out‐of‐autoclave and autoclave manufacturing processes on mechanical properties of glass fiber‐reinforced epoxy composite

Dewangan,

Chakladar

2024

Polymer Composites

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In this study, an optimum process parameter space is proposed by comparing autoclave, oven curing and vacuum infusion process of manufacturing of GFRP composites. The process parameters, such as the degassing time of resin‐hardener mix, single or double vacuum bagging (DVB), fiber volume fraction and condition of the vacuum pump (VP) were considered. The novelty of the study shows that a VP Off and 5 min degassing condition exhibited 27%, 18% and 27% increase in tensile modulus, tensile strength and interlaminar shear strength as compared to the other methods. The normalized tensile strength, on the other hand, was comparable with DVB, oven and autoclave curing. A magnitude of 1.5 MPa of residual stress was measured with the help of x‐ray diffraction (XRD). This was verified by a Raman Spectroscopy, which showed a residual strain of 0.2% at a spectral peak of 1186 cm−1. The proposed methodology would assist the industries in choosing the right combination of process parameters required for a targeted tensile and interlaminar performance.Highlights Effect of out‐of‐autoclave and autoclave processes on the performance of GFRP was studied. Degassing time, vacuum bagging and Vacuum pump conditions were investigated. Vacuum pump Off and 5 min degassing time were found to be optimal. Tensile and Interlaminar shear strength were improved by 18% and 27% at optimal condition.

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Influence of out‐of‐autoclave and autoclave manufacturing processes on mechanical properties of glass fiber‐reinforced epoxy composite

Dewangan,

Chakladar

2024

Polymer Composites

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Fabrication and Characterization of Polymer Composites with the Help of an Enhanced Vacuum Moulding Technique

Dewangan,

Das Chakladar

2024

Springer Proceedings in Materials

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Effects of porosity on the cure kinetics and residual stress of a porous polymer

Cited by 2 publications

References 55 publications

Influence of out‐of‐autoclave and autoclave manufacturing processes on mechanical properties of glass fiber‐reinforced epoxy composite

Influence of out‐of‐autoclave and autoclave manufacturing processes on mechanical properties of glass fiber‐reinforced epoxy composite

Fabrication and Characterization of Polymer Composites with the Help of an Enhanced Vacuum Moulding Technique

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