Finding displacement at a point in truss

  • Thread starter fonseh
  • Start date
  • #1
529
2

Homework Statement


For the circled part , how to get the +1.33 , -1.67 , +1 ??? What are they ? Are they the µ ?

Homework Equations




The Attempt at a Solution


What is µ ? How to get the value ? It's not stated in my book though
 

Attachments

  • 5.jpg
    5.jpg
    29.1 KB · Views: 322
  • 4.jpg
    4.jpg
    37.8 KB · Views: 276

Answers and Replies

  • #2
PhanthomJay
Science Advisor
Homework Helper
Gold Member
7,167
507

Homework Statement


For the circled part , how to get the +1.33 , -1.67 , +1 ??? What are they ? Are they the µ ?

Homework Equations




The Attempt at a Solution


What is µ ? How to get the value ? It's not stated in my book though
I would be surprised if it wasn't stated in your book. Your attempt is a question, not an attempt. The value of u is the dimensionless ''force' in each member when a unit load of 1 (dimensionless) is applied at the given joint in the direction of the displacement you want to calculate for that joint. You should now make an attempt to understand the given solution.
 
  • #3
227
58
The method used here is the virtual work method for trusses and mu are the internal force in each member due to a unit load of 1 applied at point E.
Positive values indicate that the member is under tension forces, negative under compression forces
 

Related Threads on Finding displacement at a point in truss

Replies
4
Views
908
  • Last Post
Replies
3
Views
2K
Replies
1
Views
2K
Replies
5
Views
2K
  • Last Post
Replies
8
Views
3K
  • Last Post
Replies
9
Views
930
  • Last Post
Replies
3
Views
8K
Replies
11
Views
2K
  • Last Post
Replies
0
Views
4K
  • Last Post
Replies
6
Views
1K
Top