katiejune

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About katiejune

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    Intern

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  • Engineering Field
    mechanical
  • License
    EIT
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  • Discipline
    Mechanical

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    Ohio

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  1. Seriously thank you so much! This is exactly what I have been searching for.
  2. Thank you!!!!!!!!!!!!!!!!!!!
  3. Thanks that is helpful, I do have both references and was looking for that. I was looking also for weight of round bar (etc), do you know if that is included anywhere? I found a steel sizes & weights chart online that I printed but I'm wondering if you know if that's covered in these references?
  4. For those of you taking Machine Design & Materials, what handbook are you bringing for fastener strengths? In one of the practice test problems, NCEES referenced the strength of a specific threaded rod and I was wondering what reference material you are bringing for these types of look-ups. Thank you!
  5. This problem is #529 in the 2011 practice test and they call out e=6in there and W=4500lb. So I think M=27,000 not 27.000. So I think I figured it out.
  6. I have visited this problem multiple times and I understand everything, except I cannot figure out how they got e=6in (in solution). What am I missing? If the moment is 27 in-lb, why can't I just use that for M? (Other than it keeps giving me the wrong answer lol) Thanks!
  7. Thank you! I am about to post a question on #121.
  8. Thank you so much for the lead. Are you saying that the elastic deformation is the force of the spring acting on the bar? So as the bar expands, there is a force the spring is pushing back on the bar, thus reducing the compression of the spring? This is how I understand this and I just want to make sure. Thank you!!
  9. http://www.chegg.com/homework-help/problems-section-statically-indeterminate-problems-involve-t-chapter-3.6-problem-7p-solution-9780470912003-exc similar problem
  10. This problem appears in the 2011 version of NCEES Practice Exam as #520 and appears in the 2016 version as #112. It is about a steel bar expanding under a temperature increase. The bar is mounted against a spring, the system is horizontal. The system is mounted between two walls. It is asking for the increase in force produced by the thermal expansion of the bar. I've tried this problem a few times and I keep getting 648lb instead of their answer of 624. So I'm just looking for some guidance on how they are solving this one, mainly how they are coming up with the main equation they are using, or the logic? Thanks so much!
  11. I am also confused on 533 and got 1.57 (C) as my answer.
  12. I just saw this and was thinking that I did post some problems on 1-2 threads, but I don't have the option to delete them. So not sure how I would remove them. Any help? I don't want to break any of the rules on posting. Thanks so much.
  13. Thank you so much. I am using MERM12 and the table is 51.5 on page 51-10 if anyone else reads this and needs it. Have a great day and I appreciate the guidance!
  14. Im hoping someone can help my mom-brain fog on these two. My answers are not matching. For #124, I get the area of the bolt to be .196in^2 but the book gets .142 For #125, I'm not sure what this equation they are using for secondary shear force is coming from. I was thinking I would use the polar moment of inertia equation with J=sum(r^2*A) but not sure how their J=6*36? thanks!! posting both questions and answers below, or I will try to