Load bearing capacity investigation and coating failure mechanism for coated spur gears

Jiling Feng, Yi Qin

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Spur gears are the most common type of gears for industry, due to its simple structures and low costs of manufacture. Under the complex loading conditions, failures can easily occur in the form of de-bonding, pitting, spalling or crushing of coating structures. Failure may originate from initiation of cracks, and its growth and propagation, however, basic failure mechanism is still not clear. In order to investigate the failure mechanism of coating structure failure for the spur gears, this paper presents some understandings about the coating damage at the teeth flank of a spur gear, based on a novel Finite Element simulation-procedures. This modeling procedure was developed based on several modeling approaches including: parameterized FE modeling, Cohesive-Zone Model and sub-modeling technique. The numerical model of spur gear was based on 42CrMo4 steel with PVD coating deposited as TiN/CrN multilayer structures. It was found that greater load bearing capacity exist for spur gears with the coating of nitride states deposited on 42CrMo4 steel.
LanguageEnglish
Pages491-496
Number of pages6
JournalApplied Mechanics and Materials
Volume446-447
DOIs
Publication statusPublished - Nov 2013

Fingerprint

Spur gears
Bearing capacity
Loads (forces)
Coatings
Spalling
Steel
Gear teeth
Physical vapor deposition
Crushing
Pitting
Nitrides
Gears
Numerical models
Multilayers
Cracks
Costs
Industry

Keywords

  • coated spur gears
  • cohesive zone model
  • crack initiation

Cite this

@article{1efe61615f6344d287c3bee8ec77ed4a,
title = "Load bearing capacity investigation and coating failure mechanism for coated spur gears",
abstract = "Spur gears are the most common type of gears for industry, due to its simple structures and low costs of manufacture. Under the complex loading conditions, failures can easily occur in the form of de-bonding, pitting, spalling or crushing of coating structures. Failure may originate from initiation of cracks, and its growth and propagation, however, basic failure mechanism is still not clear. In order to investigate the failure mechanism of coating structure failure for the spur gears, this paper presents some understandings about the coating damage at the teeth flank of a spur gear, based on a novel Finite Element simulation-procedures. This modeling procedure was developed based on several modeling approaches including: parameterized FE modeling, Cohesive-Zone Model and sub-modeling technique. The numerical model of spur gear was based on 42CrMo4 steel with PVD coating deposited as TiN/CrN multilayer structures. It was found that greater load bearing capacity exist for spur gears with the coating of nitride states deposited on 42CrMo4 steel.",
keywords = "coated spur gears, cohesive zone model, crack initiation",
author = "Jiling Feng and Yi Qin",
year = "2013",
month = "11",
doi = "10.4028/www.scientific.net/AMM.446-447.491",
language = "English",
volume = "446-447",
pages = "491--496",
journal = "Applied Mechanics and Materials",
issn = "1660-9336",

}

Load bearing capacity investigation and coating failure mechanism for coated spur gears. / Feng, Jiling; Qin, Yi.

In: Applied Mechanics and Materials, Vol. 446-447, 11.2013, p. 491-496.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Load bearing capacity investigation and coating failure mechanism for coated spur gears

AU - Feng, Jiling

AU - Qin, Yi

PY - 2013/11

Y1 - 2013/11

N2 - Spur gears are the most common type of gears for industry, due to its simple structures and low costs of manufacture. Under the complex loading conditions, failures can easily occur in the form of de-bonding, pitting, spalling or crushing of coating structures. Failure may originate from initiation of cracks, and its growth and propagation, however, basic failure mechanism is still not clear. In order to investigate the failure mechanism of coating structure failure for the spur gears, this paper presents some understandings about the coating damage at the teeth flank of a spur gear, based on a novel Finite Element simulation-procedures. This modeling procedure was developed based on several modeling approaches including: parameterized FE modeling, Cohesive-Zone Model and sub-modeling technique. The numerical model of spur gear was based on 42CrMo4 steel with PVD coating deposited as TiN/CrN multilayer structures. It was found that greater load bearing capacity exist for spur gears with the coating of nitride states deposited on 42CrMo4 steel.

AB - Spur gears are the most common type of gears for industry, due to its simple structures and low costs of manufacture. Under the complex loading conditions, failures can easily occur in the form of de-bonding, pitting, spalling or crushing of coating structures. Failure may originate from initiation of cracks, and its growth and propagation, however, basic failure mechanism is still not clear. In order to investigate the failure mechanism of coating structure failure for the spur gears, this paper presents some understandings about the coating damage at the teeth flank of a spur gear, based on a novel Finite Element simulation-procedures. This modeling procedure was developed based on several modeling approaches including: parameterized FE modeling, Cohesive-Zone Model and sub-modeling technique. The numerical model of spur gear was based on 42CrMo4 steel with PVD coating deposited as TiN/CrN multilayer structures. It was found that greater load bearing capacity exist for spur gears with the coating of nitride states deposited on 42CrMo4 steel.

KW - coated spur gears

KW - cohesive zone model

KW - crack initiation

UR - http://www.scientific.net/AMM

U2 - 10.4028/www.scientific.net/AMM.446-447.491

DO - 10.4028/www.scientific.net/AMM.446-447.491

M3 - Article

VL - 446-447

SP - 491

EP - 496

JO - Applied Mechanics and Materials

T2 - Applied Mechanics and Materials

JF - Applied Mechanics and Materials

SN - 1660-9336

ER -