JNTU Kakinada B-Tech 4-1 ADVANCED COMPUTER AIDED ENGINEERING (MOOCS) R13 March 2018 Question Paper

PART ?A (22 Marks)1. a) Explain with a sketch plane stress and plane strain. [4]
b) What is FEM? Sketch the different types of elements used based on geometry in
Finite Element Analysis. [4]
c) List the importance of two dimensional plane stress and plane strain analysis. [4]
d) Derive the mass matrix for a two noded linear element. [4]
e) Write about Solution techniques for static loads. [3]
f) State the significance of modal analysis. [3]
PART ?B (3×16 = 48 Marks)2. a) With the help of a neat diagram, describe the various components of stress and
strains.
[8]
b) Derive the stress-strain relationship and strain displacement elevation. [8]

3. a) Distinguish between natural coordinate and volume coordinates also write their
mathematical analysis
[8]
b) List and briefly describe the general steps of the finite difference method. [8]

4. What do you understand by finite element modeling of axi-symmetric triangular
element using iso parametric representation?
[16]

5. a) Derive shape functions for one dimensional two noded bar element. Hence explain
the conditions for the shape function has to satisfy.
[8]
b) Distinguish between lower and higher order elements. [8]

6. a) Explain the different types of loads used in FEM. [8]
b) State the different types of constraints to be considered for finite element analysis. [8]

7. Consider the bar in below figure 7 loaded as shown. Determine the nodal
displacements, element stresses, and support reactions. Solve this problem by hand
calculation, adopting the elimination method for handling boundary conditions.
Figure 7

[16]
IV B.Tech I Semester Supplementary Examinations, February/March – 2018
ADVANCED COMPUTER AIDED ENGINEERING (MOOCS) (Mechanical Engineering)Time: 3 hours Max. Marks: 70
Question paper consists of Part-A and Part-B
Answer ALL sub questions from Part-A
Answer any THEE questions from Part-B
*****
Code No: RT4103B
Set No. 1
R13
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