Civil Engineering - Strength of Materials - Discussion
Discussion Forum : Strength of Materials - Section 3 (Q.No. 15)
15.
Strain energy of a member may be equated to
average resistance x displacement
stress x strain x area of its cross-section stress x strain x volume of the member (stress)2 x volume of the member + Young's modulus E.Discussion:
20 comments Page 1 of 2.
Deepak said:
9 years ago
My opinion is option C. Whyn't it should be?
Samm said:
9 years ago
@Deepak.
Option C is applicable for gradually applied load. Whereas option D is valid for both gradually & suddenly applied load.
Option C is applicable for gradually applied load. Whereas option D is valid for both gradually & suddenly applied load.
Aspire said:
9 years ago
Please someone explain it.
Yogesh said:
9 years ago
Strain Energy = 1/2 Pδ.
Taking δ = PL/AE.
SE = P^2L/2AE = σ ^2V/2E.
(where σ = P/A).
Taking δ = PL/AE.
SE = P^2L/2AE = σ ^2V/2E.
(where σ = P/A).
Abhishek said:
9 years ago
I think it is Option c.
Himzz said:
9 years ago
I think in the answer instead of + sign they should correct it by / (divide) sign.
Sunil Kukadiya said:
9 years ago
0.5 * ((stress)2 x volume of the member)/(Young's modulus E).
Aashish rastogi said:
9 years ago
I think answer c is right.
DEEPAK KANDPAL said:
8 years ago
Yes, it should be C.
Bikash kabiraj said:
8 years ago
Answer d is correct. It is /E (not +E).
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