Shettar, Manjunath and Kini, Achutha U and Sharma, S S and Hiremath, Pavan and Gowri Shankar, M C (2019) Investigation and optimization of thermal shock effects on the properties and microstructure of Nanoclay-Glass Fiber Reinforced. Materials Research Express, 6 (10). pp. 1-9. ISSN 2053-1591

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Abstract

In the present work,‘Nanoclay-Glass Fiber Reinforced EpoxyComposites(NGFRECs)’are produced by handlay-up process with a varying weight percentage of glass fiber and nanoclay.NGFRECs undergo two variety of thermal shock conditions.As prepared composite s and thermal shock conditioned specimens are tested for tensile and flexural strength according to ASTM standards.To optimize the responses variables,‘Design of Experiment(DOE)’based on the full factorial design (33=L27)isused. MINITAB18 software is used for design and analyses. Results revealed that increasing glass fiber weight percentage and nano clay has enhanced the flexural and tensile strength, whereasthermalshockconditionsdeclinedaforesaidstrengths.ThefailuremodeoftheNGFRECas disclosed from SEM images include any of the following combinations,fiber pullout,rupture of the matrix,fiber-matrixde-bonding, delamination, matrixcrazing, initiation and propagation of microcracks

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