Page 25 - KAJIDAYA BAHAN
P. 25
KAJIDAYA BAHAN
Penyelesaian
i) Tegasan
P
= --------
A
π D 2
A = -----------
4
-3 2
π (12 x 10 )
= ------------------
4
-4
2
= 1.1309x 10 m
P
= -------
A
20 x 10 3
= --------------------
-4
1.1309x 10
2
= 176.83 MN/m @ MPa
ii) Terikan sisi
-(Do –Df )
sisi = ------------
Do
-3
-3
-(11.996 x 10 ) –(12 x 10 )
= -------------------------------------
11.996 x 10 -3
-4
= 3.3344 x 10
iii) Terikan paksi
Lf –Lo
paksi = -----------
Lo
0.0435 x 10 -3
= ----------------
-3
50 x 10
-4
= 8.7 x 10
16