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.
Lalit said:
7 years ago
Option c is correct, if answer is option D then instead of +E, there should be /E, then both option C & D become same value.
You are absolutely right @Kajal Tomar.
You are absolutely right @Kajal Tomar.
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.
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).
Himzz said:
9 years ago
I think in the answer instead of + sign they should correct it by / (divide) sign.
Neel said:
8 years ago
Option C is correct.
And in option D there should be 1/E and in multiplication.
And in option D there should be 1/E and in multiplication.
Deepak said:
7 years ago
Both C and D is the correct answer. Because strain is also known as stress/E.
Kajal Tomar said:
7 years ago
Option C is correct or otherwise option D but + should be ÷.
(2)
Sunil Kukadiya said:
9 years ago
0.5 * ((stress)2 x volume of the member)/(Young's modulus E).
Ritesh said:
6 years ago
1/2*stress*strain*volume (stress2/2E*volume) are same.
(1)
Bhanwar singh said:
8 years ago
C is the correct option.
D will be if /E is there.
D will be if /E is there.
(1)
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