Modeling and Analysis of Effective Case Depth on Meshing Strength of Internal Gear Transmissions

Table 3

Fracture stresses of external gears in seven layers for three mechanical models studied.

Layer number	Tresca criterion
	fracture stress (MPa)
	EH	IH	HH
1	1241.448	1288.092	1108.692
2	1162.512	1237.86	1058.46
3	1045.902	1004.64	1004.64
4	943.644	954.408	954.408
5	920.322	920.322	920.322
6	852.15	888.03	888.03
7	767.832	800.124	800.124