Three dimensional fatigue crack initiation and propagation analysis of a gear tooth under various load conditions and fatigue life extension with boron/epoxy patches

Abstract Three-dimensional finite element analyses were conducted to study both crack initiation and propagation in a gear tooth. A damage mechanics approach was used to model crack initiated on the surface of a gear tooth due to rolling contact fatigue (RCF). A finite element model was developed to study the effects of friction on the fatigue crack initiation life. After the location of crack initiation was identified, a fracture mechanics approach was employed to simulate mixed-mode fatigue crack propagation. Partial contact loading conditions were also considered based on the width of the contact load acting along the thickness.

[1]  S. Glodež Experimental results of the fatigue crack growth in a gear tooth root , 1998 .

[2]  Srečko Glodež,et al.  Simulation of surface pitting due to contact loading , 1998 .

[3]  Bijan Mohammadi,et al.  Crack trajectory analysis of single-side repaired thin panels in mixed-mode conditions using glass/epoxy patches , 2008 .

[4]  Carl Albrecht Transmission Design Using Finite Element Method Analysis Techniques , 1988 .

[5]  Matjaž Šraml,et al.  Fatigue crack initiation and propagation under cyclic contact loading , 2009 .

[6]  Srečko Glodež,et al.  A fracture mechanics model for the wear of gear flanks by pitting , 1997 .

[7]  Srečko Glodež,et al.  Modelling of crack growth under cyclic contact loading , 1998 .

[8]  Paul A. Wawrzynek,et al.  Simulating Fatigue Crack Growth in Spiral Bevel Gears , 2001 .

[9]  Mario Guagliano,et al.  FATIGUE CRACK GROWTH PREDICTION IN SPECIMENS SIMILAR TO SPUR GEAR TEETH , 1997 .

[10]  Hossein Hosseini-Toudeshky,et al.  Finite element fatigue propagation of induced cracks by stiffeners in repaired panels with composite patches , 2012 .

[11]  Roberto Ballarini,et al.  Rim Thickness Effects on Gear Crack Propagation Life , 1997 .

[12]  Jože Flašker,et al.  Crack propagation in tooth root with variable loading , 1993 .

[13]  Jože Flašker,et al.  Investigation of crack propagation scatter in a gear tooth’s root , 2008 .

[14]  Roberto Ballarini,et al.  Effect of Rim Thickness on Gear Crack Propagation Path. , 1997 .

[15]  Ronald Krueger,et al.  The Virtual Crack Closure Technique : History , Approach and Applications , 2002 .

[16]  Srečko Glodež,et al.  Influence of different load models on gear crack path shapes and fatigue lives , 2008 .

[17]  Paul A. Wawrzynek,et al.  Three-Dimensional Gear Crack Propagation Studies , 1998 .

[18]  T. K. Hellen,et al.  Numerical methods for determining stress intensity factors vs crack depth in gear tooth roots , 1997 .

[19]  Ervin Bossanyi,et al.  Wind Energy Handbook , 2001 .

[20]  G. Kullmer,et al.  2D- and 3D-Mixed Mode Fracture Criteria , 2003 .

[21]  J. Flašker,et al.  Computational approach to contact fatigue damage initiation analysis of gear teeth flanks , 2007 .

[22]  T. D. Righiniotis,et al.  Debonding of adhesively bonded composite patch repairs of cracked steel members , 2011 .

[23]  Bijan Mohammadi,et al.  Thermal residual stresses effects on fatigue crack growth of repaired panels bounded with various composite materials , 2009 .