An aluminum link is subjected to axial tension.The loading is limit
3 views 0 purchase
Course
HBO Small Business en Ondernemerschap
Institution
HBO Small Business En Ondernemerschap
An aluminum link is subjected to axial tension.The loading is limited by the conditions
of not yielding and not elongating excessively. The yield limit is satisfied if the stress remains
below 50% of the 325 MPa yield stress. The elongation must remain below 0.1 mm. The link
cross-section is re...
An aluminum link is subjected to axial tension.The loading is limited by the conditions
of not yielding and not elongating excessively. The yield limit is satisfied if the stress remains
below 50% of the 325 MPa yield stress. The elongation must remain below 0.1 mm. The link
cross-section is rectangular, 3 mm by 7 mm. Assuming elastic behavior, determine the maximum
allowable tensile force for two cases: (a) the length of the link is 35 mm and (b) the length of the
link is 55 mm.
Solution
Area of the cross section = 7*3*10^-6 = 21*10^-6 m^2
Maximum allowable stress = 325 Mpa
Allowable tensile load (T) = Stress * Area = 325*10^6 * 21*10^-6 = 6825 N
a) Young\'s modulous of alluminium is 69 Gpa
So, strain = 0.1/35 = 2.85 *10^-3
Stress = young\'s modulous * strain = 69*10^9 * 2.85*10^-3 = 197.14*10^6 = 197.14 MPa
Hence, stress is less than 325 Mpa, so the tensile load is limited by the maximum elongation
condtion.
Maximum allowed force = Stress * area = 197.14*10^6 * 21*10^-6 = 4139.9 N
b) Strain = (0.1/55) = 1.818 *10^-3
Stress = young\'s modulous * strain = 69*10^9 * 1.818*10^-3 = 197.14*10^6 = 125.44 MPa
Again stress is less than 325 Mpa, so the tensile load is limited by the maximum elongation
condtion.
Maximum allowed force = Stress * area = 125.44*10^6 * 21*10^-6 = 2634.28 N
I hope you got this :)
If any doubt then please comment.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller meejuhaszjasmynspe52866. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.02. You're not tied to anything after your purchase.