• Amit Zala
• Pro.(Dr).Divyang Pandya
• Prof.Parth Patel

This review paper, the gear tooth flanks, contact fatigue is one of the main failure modes due to repeated compression and shear stress cycles. For the investigation of surface and subsurface stresses of gear teeth by using of hertzian theory and the finite element method. The number of loading cycles required for fatigue crack initiation is predicted using the Smith-Watson-Topper method. The effects of friction and speed on stress cycles and fatigue life are studied. Friction is found to shift the distributions of von misses stress, changes the extreme values of the shear stress cycle, and results in low fatigue life. The stresses near the engagement and recess areas are also found to be greater than the static contact conditions and thus result in low fatigue life, particularly at high speeds.

Spur Gear, Finite element dynamics analysis, crack initation.

"AN INVESTIGATION OF CRACK INITIATION IN SPUR GEARS BASED ON FINITE ELEMENT DYNAMICS ANALYSIS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 3, page no.518-521, March-2019, Available :http://www.jetir.org/papers/JETIR1903182.pdf

"AN INVESTIGATION OF CRACK INITIATION IN SPUR GEARS BASED ON FINITE ELEMENT DYNAMICS ANALYSIS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 3, page no. pp518-521, March-2019, Available at : http://www.jetir.org/papers/JETIR1903182.pdf