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A fracture mechanics study of crack propagation mechanism in coal: the mechanics of fine fragment formation.

Authors
Bieniawski-ZT; Zipf-RK Jr.
Source
For Reference Only At Bureau Libraries :1-302
Link
NIOSHTIC No.
10007423
Abstract
Direct costs of dust-induced illnesses from coal mining exceed $1 billion per year, but fundamental mechanical knowledge of particle generation is meager. This research uses fracture mechanics theory, experiment, and application to explain how fine coal fragments (respirable dust) are generated during coal cutting.
Publication Date
19880101
Document Type
CP; Final Contract Report
Fiscal Year
1988
NTIS Accession No.
NTIS Price
Identifying No.
OFR 8-90
Source Name
For Reference Only At Bureau Libraries
State
PA
Performing Organization
Pennsylvania State University
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