{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

sample_quizzes

sample_quizzes - SAMPLE QUIZZES ELASTICITY-1 Sample Quiz...

This preview shows pages 1–3. Sign up to view the full content.

SAMPLE QUIZZES - ELASTICITY - 1 – Sample Quiz Questions 1. Derive the following strain-displacement relationship similar to what we did in class y u x xy + = / / υ γ 2. A thin rectangular plate a=20 mm and b=12 mm is acted upon by a stress distribution resulting in the uniform strains in the body µ µ µ γ ε ε 200 , 500 , 300 xy y = = = x (a) Determine the change in length of diagonal QB. (b) What is the maximum shear strain in the body? y A B b Q C a 3. A thin walled cylindrical pressure vessel of diameter ‘d’ and thickness ‘t’ is subjected to an internal pressure ‘p’. If there is a small circular hole in the vessel wall, what is the maximum tangential stress at the hole edge. Show your steps clearly. Given are the following hints. Hints are just hints – using them is your choice. Hint A. You can use superposition and transformation of coordinates. Hint B. An infinite plate with a hole of radius ‘a’ subjected to a uniform axial tension σ ’ gives the tangential stress at the hole edge as ) Cos2 2 - (1 ) , ( θ σ θ σ θθ = = a r Hint: The stresses in a thin walled pressure vessel of diameter d and thickness t subjected to a uniform pressure ‘p’ is t pd y 2 = σ (tangential stress); t pd x 4 = σ (axial stress) x

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document