Solving Problems 3 & 4: Looking for Alternatives

  • Thread starter Thread starter nevadosajama
  • Start date Start date
Click For Summary

Discussion Overview

The discussion revolves around seeking alternative methods to solve problems 3 and 4 from a set of engineering problems. Participants explore different approaches and clarify aspects of the original work presented in a PDF attachment.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related

Main Points Raised

  • One participant identifies a typo in the problem statement regarding the value of P3, noting discrepancies in the given values.
  • Another participant suggests an alternative method for solving problem 3, proposing the use of superposition to find total deformation without calculating internal forces, which they believe may simplify the process.
  • A participant expresses appreciation for the clarity and presentation of the original work, indicating that the method used for problem 4 appears sound, although they did not verify the numerical values.

Areas of Agreement / Disagreement

Participants generally agree on the need for clarity in the problem statements and the potential for alternative methods, but no consensus is reached on the best approach for solving the problems, particularly problem 4, which remains less discussed.

Contextual Notes

The discussion includes a reliance on the accuracy of the provided values and the clarity of the original work, which may affect the proposed methods. There are also unresolved aspects regarding the verification of numerical results in problem 4.

nevadosajama
Messages
2
Reaction score
0
Hi Guys attached is a pdf file with some problems that I've been solving, my question is if there is a better and/or different way to solve problems 3 and 4 (variations included).
Thanks in advance and cheers:cool:
 

Attachments

Physics news on Phys.org
On problem 3, you made a typo somewhere on your givens: In one place you say P3 is 1300 pounds, in another, you say its 1800 pounds.

I don't see your work in the attachment. Looks like you're finding the force in each section, then what? I assume you're adding/subtracting the deformations for each segment based on the internal forces in that section over that segment length?? If so, that's OK, but alternatively, you could just find the deformation at the end of the bar for each load P1, P2, and P3 separately, then add them up by superposition. This avoids having to find the internal forces . Just saves a small step, but the internal forces are good to know anyway, but this alternate approach will serve as a check. And my guess that this alternate approach is easier when you attempt to solve the value of P3 that will give zero total deformation.

I haven't looked at (4) yet... perhaps someone else will if I don't get to it.

Oh BTW, welcome to PF!
 
Thanks Phantom Jay, yep, you're right I made a typo on the pdf file, (the pdf file is my work, I created the graphics on Deneba Canvas, and saved on pdf), I'll try your advice.
Thanks
 
nevadosajama said:
Thanks Phantom Jay, yep, you're right I made a typo on the pdf file, (the pdf file is my work, I created the graphics on Deneba Canvas, and saved on pdf), I'll try your advice.
Thanks
I looked at number 4, and although I didn't check your numbers, your method looks perfect. I must also say that the clarity and neatness and presentation of your work is amongst the best I've ever seen. Nice job!
 

Similar threads

Engineering Multi-point Boundary Value Problems Using Finite Difference Method
  • · Replies 3 ·
Replies
3
Views
3K
Comp Sci Playing with the digits codewar problem -- alternative way to solve it?
  • · Replies 6 ·
Replies
6
Views
4K
Engineering Alternating current circuit with transformer
  • · Replies 12 ·
Replies
12
Views
2K
Engineering Moments problem -- One point load is given on a table
  • · Replies 4 ·
Replies
4
Views
2K
Engineering Transverse shear stress calculation in non-slender built up members
  • · Replies 6 ·
Replies
6
Views
3K
Comp Sci Unfamiliar Compilation Errors In a Linked List Class (C++)
  • · Replies 2 ·
Replies
2
Views
2K
Engineering Loads on a shaft with V-Belts
  • · Replies 2 ·
Replies
2
Views
4K
Advanced Hydrodynamic Problem - University level
  • · Replies 49 ·
2
Replies
49
Views
5K
Three-part Problem: Thevenin + Dependent current source
  • · Replies 6 ·
Replies
6
Views
2K
Heat transfer between objects by conduction
  • · Replies 13 ·
Replies
13
Views
3K