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AN EMPIRICAL MODEL FOR THE STRESS‐STRAIN RELATIONSHIPS OF HYDROCOLLOID GELS IN TENSION MODE
Author(s) -
HERSHKO V.,
NUSSINOVITCH A.
Publication year - 1996
Publication title -
journal of texture studies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.593
H-Index - 54
eISSN - 1745-4603
pISSN - 0022-4901
DOI - 10.1111/j.1745-4603.1996.tb00990.x
Subject(s) - materials science , logarithm , strain (injury) , power law , tension (geology) , carrageenan , stress–strain curve , stiffness , stress (linguistics) , composite material , gellan gum , mathematics , chemistry , deformation (meteorology) , compression (physics) , mathematical analysis , statistics , medicine , biochemistry , linguistics , philosophy , food science
The mechanical properties of hydrocolloid gels with high gum concentrations (agar 1–5%, gellan 1–3% and K‐carrageenan 0.5–3.0%), were measured under uniaxial tension. A simple power law model was used to describe the stress‐strain curves which tended to be concave upward. The overall stiffness and the extent to which the stress‐strain curve deviated from a straight line were estimated by the calculated constants of this model, using linear regression of the model's logarithmic transform.