 # check out the description Anonymous
timer Asked: Feb 11th, 2018
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### Question Description

HW 3 must be hand written and clear. If it is hard to read, it will have zero point.

HW 3 has two parts.

1. (20 points) Derive constitutive equation (governing equation) of standard linear solid model and standard linear fluid model. We did some work for standard linear solid model in class, but your HW must have all works without any skips or jump.

2. (20 points) For standard linear solid model and standard linear fluid mode, derive function of stress (when strain is constant) and strain (when stress is constant) in terms of time t.

## Tutor Answer

ProfGardner
School: New York University   Hello,Attached find the completed work together with plagiarism report. Go through it and in case you need anything corrected I will be here to assist you. All the best.

Hello, just to let you know that I’m almost through with you assignment and I will be
sending it in a few. Thanks for understanding.

Attached is part one of your assignement. Go through it and kindly let me know what you think as I conclude the second part.

1. Derive constitutive equation (governing equation) of standard linear solid model and
standard linear fluid model.
Constitutive equation a standard linear solid model
σ = σa=σb
σ= E1ε 1 + E2ε2 + ηε2
ε* = ε2* + ε1*
= σ*/E1 + σ/η – E2ε2/η
ε2 = ε-ε1=ε-σ/E1
ε = σ/E1 + σ/η-E2/η (ε-σ/E1)
ε*+ (E2/η)ε = σ*/E1+σ/η(1+ E2/E1)
ε*+ (E2...

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