Stress Analysis - compound cylinders

Click For Summary
SUMMARY

The discussion centers on solving problem WBVMMECH025 from the ANSYS 12 verification manual, specifically related to stress analysis of compound cylinders. The user successfully completed the ANSYS analysis but struggled with hand calculations for tangential stresses due to internal pressure. After reviewing the interface pressure calculations and Excel formulas, the user ultimately resolved the issue independently. The problem and the user's attempt were shared via external links for community reference.

PREREQUISITES
  • Understanding of stress analysis principles in mechanical engineering
  • Familiarity with ANSYS 12 software for finite element analysis
  • Knowledge of tangential stress calculations related to internal pressure
  • Proficiency in Excel for performing engineering calculations
NEXT STEPS
  • Study the derivation of tangential stress formulas for compound cylinders
  • Explore advanced features of ANSYS 12 for stress analysis
  • Learn about verification methods for finite element analysis results
  • Investigate common pitfalls in hand calculations for mechanical engineering problems
USEFUL FOR

Mechanical engineers, students in engineering mechanics, and professionals involved in stress analysis and finite element modeling will benefit from this discussion.

jhmz
Messages
9
Reaction score
0

Homework Statement


problem attached


Homework Equations


attached
but lame equations i think they are?

The Attempt at a Solution


attached


Hey
this is an assignment question that i have wasted countless hours on trying to solve without success. The problem is WBVMMECH025 from the anasys 12 verification manual (problem is attached) i have completed the anysys analysis with correct results and now have to do hand calculations, I am sure that the interface pressure is correct, I am sure i am using the right formula to find tangential stresses due to interface pressure and that those answers are correct. I think it is after this where i try to find the tangetial stresses due to the applied internal pressure is where i am going wrong but can't figure out why. have attached a clean copy of my attempt and the excel formulas should be correct cause they match my hand calculations.

all help greatly appreciated

edit: files were too big for attachment so i hosted them externally

The problem
http://www.fileden.com/files/2010/5/6/2850545/problem.doc"

My attempt at the question:
http://www.fileden.com/files/2010/5/6/2850545/my%20attempt.xls"
 
Last edited by a moderator:
Physics news on Phys.org
alll good figured it out
 

Similar threads

Mechanics of Materials — Torsional Stress on a Spinning Shaft
  • · Replies 5 ·
Replies
5
Views
4K
Engineering An issue with these two curved beam homework problems
  • · Replies 2 ·
Replies
2
Views
2K
Find an expression for the shear stress of this figure
  • · Replies 1 ·
Replies
1
Views
2K
Engineering Understanding Shear Stress Theories: Moors Circle & McGraw Hill
  • · Replies 1 ·
Replies
1
Views
2K
Working stress vs allowable stress
  • · Replies 6 ·
Replies
6
Views
9K
Stress in cylinders due to thermal expansion
  • · Replies 16 ·
Replies
16
Views
3K
Stress Distribution in Compound Cylinders
  • · Replies 1 ·
Replies
1
Views
3K
Strain and Stress in Thin-Walled Hoops Under Pressure
  • · Replies 9 ·
Replies
9
Views
5K
Engineering Struggling with a Structural Analysis Problem?
  • · Replies 1 ·
Replies
1
Views
3K
Mechanical engineering - Stress concentration
  • · Replies 1 ·
Replies
1
Views
2K