A mechanical viscoelastic model consisting of an ideal Hookean spring and an ideal Newtonian dashpot connected in PARALLEL represents the:
Options:
(A) Maxwell model
(B) Kelvin-Voigt model
(C) Burgers model
(D) Bingham plastic model
Answer Key:
B
Step-by-Step Solution & Explanation
In food rheology:
- Maxwell model: Spring and dashpot in SERIES (characterizes stress relaxation).
- Kelvin-Voigt model: Spring and dashpot in PARALLEL (characterizes retarded elastic deformation / creep recovery).
- Burgers model: A Maxwell element in series with a Kelvin-Voigt element (four-element model).
- Bingham plastic: A rigid body with a friction slider (yield stress) in series with a dashpot.
Therefore, spring and dashpot in parallel is the Kelvin-Voigt model.