Prediction and validation of buckling stress (σcrt) of the ceramic honeycomb cell walls under quasi-static compression. Issue 1 (31st December 2016)

• Record Type: Journal Article
• Authors: Ramavath, Pandu; Biswas, Papiya; Ravi, Nakula; Johnson, Roy
• Editors: Harkin-Jones, Eileen
• Is Part Of: Cogent engineering. Volume 3:Issue 1(2016)
• Publication Date: 2016-12-31
• Subjects: bulking load -- compression -- fractography -- honeycomb; Engineering -- Periodicals; Technology -- Periodicals; Engineering; Technology; Periodicals; 620
• DOI: 10.1080/23311916.2016.1168068
• Languages: English
• ISSNs: 2331-1916

Abstract

Abstract: Alumina- and cordierite-based honeycombs with varying relative densities were extruded and sintered at the respective sintering temperatures. Solid samples are also prepared under identical conditions and flexural strength ( σ f ) was estimated by three-point bend measurements. Buckling stress of honeycombs are predicted based on σ f using standard equations and validated with quasi-static compression test along the channels of honeycombs with varying relative densities. The discrepancy observed on calculated and measured values is correlated with the pre-existing flaws indicating the criticality in close control of processing parameters.