Download - 1.10,5.16 shear stresses in beams
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ELEMEN MESIN ILatihan soal
Frederikus Konrad, ST, MT, MMJURUSAN TEKNIK MESIN,FTI-UNIVERSITAS GUNADARMA
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Latihan soal Terdapat balok/beam prifil I dengan panjang 500 mm serta lebar 200
mm tebal dari flange 25 mm, balok/beam tersebut mendapat beban sebesar F = 400 kN hitung maksimum penguatan dari tegangan geser yang terjadi terlihat pada bagian tersebut dengan asumsi momen inersia 645x106 mm4 serta tidak lupa dicari tegangan geser dari sambungan profil
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Diketahui Di ketahui
F = 400 kN = 400 x 103 N H = 500 mm B = 200 mm h = 500 – 2 x 25
= 450 mm b = 15 mm c = 25 mm I = 645x106 mm4
Di tanya Tegangan geser maksimum
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Maksimum Tegangan geser Maksimum Tegangan geser
MPamm
N
x
x
x
x
x
x
x
xx
x
hxbhH
B
bxI
F
788.64
788.64
5.156718710134.4
5.379687118750010134.4
8
3037500475002510134.4
8
2025001520250025000025
109675
10400
8
45015450500
8
200
1510645
10400
88
max
2max
5max
5max
5max
6
3
max
222
6
3
max
222
max
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Maksimum Tegangan geser
Maksimum tegangan geser yang terjadi terhadap sumbu netral
Mencari luas pada bagian sumbu netral
bxI
yxAxFmax
28375
33755000
152255000
152
45025200
mmA
A
xA
xxA
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Maksimum Tegangan geser Jarak antara pusat gravitasi terhadap luas
dan sumbu netral
mmy
y
y
y
xxxy
A
hxbxhchcxB
y
127.187
8375
5.15671878375
5.37968711875008375
5.3796875.23750008375
5.112152255.1222525200
221
21
21
21
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Maksimum Tegangan geser Jarak antara pusat gravitasi terhadap luas
dan sumbu netral
MPamm
N
x
x
xx
xxx
bxI
yxAxF
796.64
796.64
109675
10269.6
1510645
127.187837510400
max
2max
6
11
max
6
3
max
max
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Tegangan geser terhadap sambungan web dan flange Maka tegangan geser
MPamm
N
x
x
x
xx
x
hHI
F
682.3
682.3
4750010752.7
20250025000010516
10400
450500106458
10400
8
2
5
7
3
226
3
22
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Tegangan geser terhadap top web dan bottom flange Maka tegangan geser
MPamm
N
xx
xx
xx
x
xxx
x
hHb
BxI
F
095.49
095.49
5.63331710752.7
47500333.1310752.7
202500250000333.1310516
10400
45050015
200
106458
10400
8
2
5
5
7
3
226
3
22
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Terima kasih
Frederikus Konrad, ST, MT, MMJURUSAN TEKNIK MESIN,FTI-UNIVERSITAS GUNADARMA