| Title: | The influence of different parameters on surface pitting of contacting mechanical elements |
|---|
| Authors: | ID Fajdiga, Gorazd (Author)
ID Flašker, Jože (Author)
ID Glodež, Srečko (Author) |
|---|
| Files: |  http://dx.doi.org/10.1016/S0013-7944(03)00022-5
|
|---|
| Language: | English |
|---|
| Work type: | Unknown |
|---|
| Typology: | 1.01 - Original Scientific Article |
|---|
| Organization: | FS - Faculty of Mechanical Engineering
|
|---|
| Abstract: | The paper describes a general computational model for simulation of surface pitting of mechanical elements subjected to contact loading conditions. In the model it is assumed that the initial crack of length 0.015 mm is initiated at the contacting surfaces due to previously thermal, mechanical treatment of the material or running in process. The discretised model with the initial crack is then subjected to normal contact pressure, which takes into account the EHD lubrication conditions and tangential loading due to friction between contacting surfaces. The model accounts also for the influence of fluid trapped in the crack on crack prppagation. The virtual crack extension VCE method within FEM analysis is then used for 2 dimensional simulation of fatigue crack propagation from the initial crack up to the formation of the surface pit. The pit shapes and relationships between the stress intensity factor and crack length are determined for various combinations of contacting surface curvatures and loadings. The comparison of computational and available experimental results shows that the proposed model reliably simulates the surface fatigue crack growth under contact loading and can be used for computational predictions of surface pitting for various contacting mechanical elements. |
|---|
| Keywords: | machine elements, gears, contact problems, pitting, fatigue crack growth, simulation, model |
|---|
| Year of publishing: | 2004 |
|---|
| PID: | 20.500.12556/DKUM-27492  |
|---|
| UDC: | 621.833:539.3 |
|---|
| ISSN on article: | 0013-7944 |
|---|
| COBISS.SI-ID: | 8436502 |
|---|
| NUK URN: | URN:SI:UM:DK:KGPUUGIK |
|---|
| Publication date in DKUM: | 01.06.2012 |
|---|
| Views: | 2170 |
|---|
| Downloads: | 111 |
|---|
| Metadata: |     |
|---|
| Categories: | Misc.
|
|---|
|
:
|
Copy citation |
|---|
| | | | Average score: | (0 votes) |
|---|
| Your score: | Voting is allowed only for logged in users. |
|---|
| Share: |  |
|---|
Hover the mouse pointer over a document title to show the abstract or click
on the title to get all document metadata. |
