02411nam a2200253 a 4500 vtls000068809 KUKTEM 20251114204537.0 130306t2012 my dka f m 000 0 eng d THE0005747(Local) 201905221035 hanafiah 201303061558 training 201303061543 training 201303061435 training UMP TA418.38 .F33 2012 rs Bc. Mohd Fadzrul Hisyam Badarudin Parametric study on fatique failure using crack initiation method/ Mohd Fadzrul Hisyam Badarudin Kuantan, Pahang : UMP, 2012 xviii, 79 p. : ill. (some col.) ; 30 cm.+ 1 CD-ROM Project paper (Bachelor of Mechanical Engineering) -- Universiti Malaysia Pahang - 2012 Bibliography: p.78-79 This thesis presents the parametric study on fatigue failure using crack initiation method analysis. In order to investigate the fatigue failure of AISI/SAE 1045 steel by varying the microstrain parameters under different loading cases and predict the crack initiation life, compact tension specimen model is used for this project. The finite element linear static analysis is done by using MSC Patran 2010 and MSC Nastran 2007 to determine the result of the stress distribution on the model. The fatigue analysis is conducted by using ANSYS 13.0 nCode Design Life to determine the microstrain value that initiates the dynamic and static failure under three loading cases; compression-compression, compression-tension and tension-tension. The obtained microstrain values are then used to obtain the fatigue damage, D which is then used to predict the crack initiation life of the material. Using Palmgren-Milner rule, the value of D will obtain the crack initiation life cycle of the material, Nf. Based on the result, it has found that the most critical loading case for the fatigue and static failure are the tension-tension. The crack initiation life of the material is at high cycle fatigue, and able to stand about 5 × 106 cycles without failure for every loading case. Meanwhile the static failure analysis has found that there is no crack initiation life, as it has failed at very low cycle in every loading case. Metal Fatique Crack initiation 0 0 0 1 20000 20000 2019-09-04 0 TA418.38 .F33 2012 rs Bc. 0000069749 2019-09-04 00:00:00 1 2019-09-04 PSM 0 0 0 1 20000 20000 2019-09-04 0 CD6627 | TA418.38 .F33 2012 rs Bc. 0000069750 2019-09-04 00:00:00 1 2019-09-04 PSM VIRTUA40 3861 3867 VTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5020*5040*5200*6500*6501*9992