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strength of materials
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C0LLE6E: COLLE6E Or EN0lNEE.RIN6DEPARiME.NT: MECHANIC-Al ENGINEERING
�\.IBJE.G1: ME.CHANIC& OF DEFORMA5LE
PRACTICE SOLVING
A. PROBLEM 6iAiEN\ENi 1: OE0I� OF A 1-10\Si
A PIN-CONNE.C,TE.D TWO- OAR ASSEMBLY OR 1-\0IE,1 \& &UPPORTED AND LOADE.D
Ao Si-!OWN IN ii-It GIVEN F"l6URE. THE LOAD 16 P = 60kN1 A 29 rnrn DIAMETER ALU-
MINUM EYE - eiAR (AC) AND A 6Smm x 68mm WOOD POST ( BC) ARE USED, COMPU1C:
Tl-IE AXIAL LOADING AND 5iRE$$E.o ON MEMBER AC AND 8G.
8. & KE. T CHE& AND DIA6RAMS
2-5m
--•�j�-2.5m
Fem: AT JOINT C
p
C. C,IVfN:
P:z501<N
(/>Ac= 29mm
A '6t = 6Smnp< 6Smm
D. ANALYSIS
T\.IE AXIAL LOADINC':, It> CAN E>t. SOLVED \JSINo THE EQUILIBRIUM EQUAi IONE,1
WI-IERE Tl-IE: �UM OF COMPONENTS FORCES �RE: EQUAL TO ZERO (})F,c=O, ANDri:-y::0)1
AND ,µt SUM OF MOMENTS ABOUT ANY POINT I& Z.ERO, (�Mo -0). FOR · r,..1E
STRE.GSE6 16 61MPLY THE FORCE. OR LOAD PC:R UNIT AREA, ( O = P/A).
iHl5 PROBLEM IS CAN E>E iSOLVE:D IN DIFFERENT WAYS1 Tl-IE EA-51t5 T WAY
TO '50LVE IT I& BY LlolNG Tf.lE METHOD OF JOINT 1 IN THE SAID METI-IOD YOU
CAN �IMPLY REDUC.-E T�E" NUMOER OF UNKNOWN FORC..E6 COMPARED TO T�E
lJSUAL FBD THAT WE'VE USIN0.
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