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Creep stress concentration during loading and unloading processes in a strip with semi circular notches
Author(s) -
Nishitani T.,
Ikeda K.
Publication year - 1985
Publication title -
strain
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.477
H-Index - 47
eISSN - 1475-1305
pISSN - 0039-2103
DOI - 10.1111/j.1475-1305.1985.tb00573.x
Subject(s) - creep , strips , viscoplasticity , materials science , stress (linguistics) , transient (computer programming) , stress concentration , composite material , structural engineering , engineering , fracture mechanics , finite element method , constitutive equation , computer science , linguistics , philosophy , operating system
The stress concentration during the loading and unloading processes of transient creep is investigated for a strip with semi circular notches by means of the photo‐viscoplasticity, using specimens of celluloid at 65d̀C. The relations between the stress concentration factor, the geometries of strips, and time during the loading and unloading processes are derived from the time dependent variations of isochromatic fringe orders. Such trends cannot be analysed by the ordinary photoplasticity in which the time effect is not taken into account.