Civil Engineering - GATE Exam Questions - Discussion
Discussion Forum : GATE Exam Questions - Section 3 (Q.No. 9)
9.
The plastic modulus of a section is 4.8 x 10-4 m3. The shape factor is 1.2. The plastic moment capacity of the section is 120 kN.m. The yield stress of the material is
Discussion:
5 comments Page 1 of 1.
Mayuri said:
10 years ago
Shape factor is the ratio of bending strength (Mp) of a rectangular member by its yield strength (My). Shape factor f = Mp/My and as Mp = FyZp and My = FyZe. So F = Zp/Ze.
DEEPAK PRAJAPATI said:
1 decade ago
Mp = 120 Kn-M.
Fy = ?
Zp = 4.8 * 10-4.
Fy = Mp / Zp.
Fy = 120/4.8 *10-4.
= 250 * 10-3.
or 250 Mpa.
Fy = ?
Zp = 4.8 * 10-4.
Fy = Mp / Zp.
Fy = 120/4.8 *10-4.
= 250 * 10-3.
or 250 Mpa.
Roy said:
8 years ago
My=FyZy.
Now,My=(plastic moment/S.F)=100/1.2=100...and Zy=(plastic section modulus/S.F)=(4.8*10^-4/1.2)=4*10^-4.
So now Fy=250Mpa.
Now,My=(plastic moment/S.F)=100/1.2=100...and Zy=(plastic section modulus/S.F)=(4.8*10^-4/1.2)=4*10^-4.
So now Fy=250Mpa.
Snjy said:
9 years ago
Nice explanation. Thank you all.
Monu Verma said:
1 decade ago
What about shape factor?
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