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An Evaluation of Fracture Toughness of Glass-Filled Ceramic Using Notched Specimen

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Abstract:

The objective of this study is to evaluate the mechanical properties of static, quasidynamic and dynamic fracture toughness of glass-filled ceramic as promising structural material for a dome port cover of a ramjet engine system. Static and quasi-dynamic tests were carried out using SEPB (Single Edge Pre-cracked Beam) specimens. Static and dynamic fracture toughness tests were also performed using ASTM and strain gage methods with SENB (Single Edge Notched Beam) specimens machined with various notch radii. The critical notch radius was evaluated. Below the critical notch radius, the static fracture toughness of the SENB specimen well agreed with that of the SEPB specimen.

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Info:

Periodical:

Key Engineering Materials (Volumes 326-328)

Pages:

927-930

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.326-328.927

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Online since:

December 2006

Authors:

Jae Hoon Kim, Duck Hoi Kim, Nam Su Rho, Young Shin Lee, Song Heo Koo, Soon Il Moon

Keywords:

Dynamic Fracture Toughness, Glass-Filled Ceramic, SENB (Single Edge Notched Beam), SEPB (Single Edge Precracked Beam), Strain Measurement Method

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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