A Short-Rod Based System for Fracture Toughness Testing of Rock

AR Ingraffea; KL Gunsallus; JF Beech; PP Nelson

doi:10.1520/STP32727S

SYMPOSIA PAPER Published: 01 January 1984

STP32727S

A Short-Rod Based System for Fracture Toughness Testing of Rock

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A system for fracture toughness determination of rock using a short-rod specimen is described and evaluated. The calibration of the specimen by finite-element analysis for two loading cases is reviewed. A description of the preparation procedure is given showing the practicality of the testing system. Verification of the system is accomplished through testing of polystyrene, Indian limestone, and Westerly granite. The results from these tests compare favorably to fracture toughnesses measured by other more expensive and time consuming methods.

Author Information

Ingraffea, AR

Experimental Research, Cornell University, Ithaca, N. Y.

Gunsallus, KL

Cornell University, Ithaca, N. Y.

Beech, JF

Cornell University, Ithaca, N. Y.

Nelson, PP

University of Texas at Austin, Austin, Tex.

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Details

Developed by Committee: E08

Pages: 152–166

DOI: 10.1520/STP32727S

ISBN-EB: 978-0-8031-4917-5

ISBN-13: 978-0-8031-0401-3

A Short-Rod Based System for Fracture Toughness Testing of Rock

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