Numerical investigation of Powder Metallurgy manufactured gear wheels subjected to fatigue loading
(2005) In Powder Technology 160(3). p.161-169- Abstract
- A 2D numerical study of the damage accumulation at the root of a Powder Metallurgy (PM) manufactured gear wheel subjected to frequent overloads, i.e. low cycle fatigue loading, has been performed. The initial porosity distribution of the gear was obtained from a 3D simulation of double action compaction of the gear. The porosity distributions over the centre plane and at the surface were transferred into 2D, and the damage accumulation was followed using the Gurson material model. The initial damage within the gear is here interpreted as the porosity distribution resulting from the manufacturing compaction process. It was found that an accurate description of initial damage distribution only has a small narrow influence on the resulting... (More)
- A 2D numerical study of the damage accumulation at the root of a Powder Metallurgy (PM) manufactured gear wheel subjected to frequent overloads, i.e. low cycle fatigue loading, has been performed. The initial porosity distribution of the gear was obtained from a 3D simulation of double action compaction of the gear. The porosity distributions over the centre plane and at the surface were transferred into 2D, and the damage accumulation was followed using the Gurson material model. The initial damage within the gear is here interpreted as the porosity distribution resulting from the manufacturing compaction process. It was found that an accurate description of initial damage distribution only has a small narrow influence on the resulting damage. The damage accumulation is a highly local phenomenon, and that the damage development is highly dependent on the local initial damage at the gear root. Based on this, a simple life estimate model, relating the number of cycles to accumulate a pre-described amount of damage to applied load and initial damage, is also presented. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/211345
- author
- Cedergren, Joakim LU ; Melin, Solveig LU and Lidström, Per LU
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- finite elements, porous material, Gurson model, gear, dynamics, damage
- in
- Powder Technology
- volume
- 160
- issue
- 3
- pages
- 161 - 169
- publisher
- Elsevier
- external identifiers
-
- wos:000233478100002
- scopus:27744568214
- ISSN
- 0032-5910
- DOI
- 10.1016/j.powtec.2005.08.023
- language
- English
- LU publication?
- yes
- id
- 660f86fe-7b4b-4431-bcbb-a11a3bd82b03 (old id 211345)
- date added to LUP
- 2016-04-01 16:07:23
- date last changed
- 2022-02-20 03:23:18
@article{660f86fe-7b4b-4431-bcbb-a11a3bd82b03,
abstract = {{A 2D numerical study of the damage accumulation at the root of a Powder Metallurgy (PM) manufactured gear wheel subjected to frequent overloads, i.e. low cycle fatigue loading, has been performed. The initial porosity distribution of the gear was obtained from a 3D simulation of double action compaction of the gear. The porosity distributions over the centre plane and at the surface were transferred into 2D, and the damage accumulation was followed using the Gurson material model. The initial damage within the gear is here interpreted as the porosity distribution resulting from the manufacturing compaction process. It was found that an accurate description of initial damage distribution only has a small narrow influence on the resulting damage. The damage accumulation is a highly local phenomenon, and that the damage development is highly dependent on the local initial damage at the gear root. Based on this, a simple life estimate model, relating the number of cycles to accumulate a pre-described amount of damage to applied load and initial damage, is also presented.}},
author = {{Cedergren, Joakim and Melin, Solveig and Lidström, Per}},
issn = {{0032-5910}},
keywords = {{finite elements; porous material; Gurson model; gear; dynamics; damage}},
language = {{eng}},
number = {{3}},
pages = {{161--169}},
publisher = {{Elsevier}},
series = {{Powder Technology}},
title = {{Numerical investigation of Powder Metallurgy manufactured gear wheels subjected to fatigue loading}},
url = {{http://dx.doi.org/10.1016/j.powtec.2005.08.023}},
doi = {{10.1016/j.powtec.2005.08.023}},
volume = {{160}},
year = {{2005}},
}