Computer Design of a Controlled Fracture Test

D. J. Browne*, H. W. Chandler

*Corresponding author for this work

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This paper describes a new method of fracture toughness testing devised specifically to determine the crack growth resistance curves of brittle materials. With the aid of computer modelling, using a finite element program, a suitable test-piece shape and loading arrangement were predicted. Using this, stable cracks were propagated under increasing load in graphite test-pieces. The graphite was found to have an increasing resistance to crack growth as the crack propagated. The results compared favourably with those obtained in three point bending. The simple geometry of the arrangement provided a quick, inexpensive, but effective method of obtaining more nearly complete fracture toughness data without the need for a stiff testing machine and loading apparatus.

Original languageEnglish
Pages (from-to)202-205
Number of pages4
JournalBritish ceramic. Transactions and journal
Volume86
Issue number6
Publication statusPublished - 1 Nov 1987

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