Question

Problem 2 In class, we have derived the solutions for stress relaxation and creep tests for Maxwell, Kelvin Voigt, and Zener models. The constant strain for a stress relaxation test and constant stress for a creep test as well as the constants of spring and dashpot are given. Kelvin-Voigt: Maxwell: Zener: E,- Eo de Eo dt di 8-0comstant 000mconstant E-80 constant For a stress relaxation test, co4, and for a creep test, oo -2.5 Pa. The parameter for the three models are given below: -Maxwell Model: E=1.5 and A-2 -Kelvin-Voigt Model: E=1.5 and -2 -Zener Model: Ei-2.5 and Eo-0.2 a) Plot the stress responses of three models to the stress relaxation test (one figure) b) Plot the strain responses of three models to the creep test (one figure) w ww

Answer 1

Stress-Rallaation dest 48th Week 332-033 Sa 25

03 Friday for May wel lhane Wa Y EoElt) 5 e 6e 4 turday for kelvineVoigt models day 1-e 11

28th Week 187-178 forx Zener (ET 1 +

01 Tuesday MaMWell 125) Zener pelvin-Voigt

ek 336-U29 02 Ceus tant stres atpuied Wednesday a to.8 celvia Voigt moda's 25 03 Week 337-028 Th Auariwell u