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45.2: Two Point Bending of Thin Glass Substrate
Author(s) -
Gulati Suresh T.,
Westbrook Jamie,
Carley Stephen,
Vepakomma Hemanth,
Ono Toshihiko
Publication year - 2011
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.3621406
Subject(s) - bending , materials science , three point flexural test , fixture , composite material , substrate (aquarium) , point (geometry) , test fixture , stress (linguistics) , structural engineering , optics , geometry , engineering , mechanical engineering , mathematics , geology , physics , linguistics , oceanography , philosophy
The two‐point bend test has been used extensively for optical fiber strength and fatigue measurements. This paper extends the theory of 2‐point bending to thin glass substrates. The key advantages of the 2‐point bend test are 1) the simplicity of a test fixture and its operation, 2) the uniformity of a bend stress along the width of a substrate, 3) the inverse relationship between a bend stress and parallel plate spacing, and 4) the non‐contact bending.

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