Prediction of crack propagation path in pin loaded lugs using boundary element methods
Commonly used in various industrial applications, especially in aerospace, Pin loaded lugs are common accessory for linkages in major structure. Mechanism defects in these lugs can result in catastrophic failure, hence it of interest to analyse the effects of such flaws present in lugs. Stress analy...
Saved in:
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Final Year Project |
| Language: | English |
| Published: |
Nanyang Technological University
2022
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/159170 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Nanyang Technological University |
| Language: | English |
| id |
sg-ntu-dr.10356-159170 |
|---|---|
| record_format |
dspace |
| spelling |
sg-ntu-dr.10356-1591702023-03-04T20:10:20Z Prediction of crack propagation path in pin loaded lugs using boundary element methods Ang, Jun Jie Ang Hock Eng School of Mechanical and Aerospace Engineering MHEANG@ntu.edu.sg Engineering::Mechanical engineering Commonly used in various industrial applications, especially in aerospace, Pin loaded lugs are common accessory for linkages in major structure. Mechanism defects in these lugs can result in catastrophic failure, hence it of interest to analyse the effects of such flaws present in lugs. Stress analysis and fracture analysis were both explored on straight pin lugs using Boundary Element Method. Geometric parameter for outer-inner radius ratios and direction of loading was varied and evaluated to determine their effects on the stress distribution on the edges of the pin-hole of the lug. Variation of effective crack length was also modelled at the critical locations found from stress analysis. Results obtained from this study presented the significance of outer-inner ratio and direction of loading on the stress concentration and stress intensity factors, relating to crack initiation and crack growth lives. Bachelor of Engineering (Mechanical Engineering) 2022-06-10T13:09:58Z 2022-06-10T13:09:58Z 2022 Final Year Project (FYP) Ang, J. J. (2022). Prediction of crack propagation path in pin loaded lugs using boundary element methods. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/159170 https://hdl.handle.net/10356/159170 en application/pdf Nanyang Technological University |
| institution |
Nanyang Technological University |
| building |
NTU Library |
| continent |
Asia |
| country |
Singapore Singapore |
| content_provider |
NTU Library |
| collection |
DR-NTU |
| language |
English |
| topic |
Engineering::Mechanical engineering |
| spellingShingle |
Engineering::Mechanical engineering Ang, Jun Jie Prediction of crack propagation path in pin loaded lugs using boundary element methods |
| description |
Commonly used in various industrial applications, especially in aerospace, Pin loaded lugs are common accessory for linkages in major structure. Mechanism defects in these lugs can result in catastrophic failure, hence it of interest to analyse the effects of such flaws present in lugs. Stress analysis and fracture analysis were both explored on straight pin lugs using Boundary Element Method.
Geometric parameter for outer-inner radius ratios and direction of loading was varied and evaluated
to determine their effects on the stress distribution on the edges of the pin-hole of the lug. Variation
of effective crack length was also modelled at the critical locations found from stress analysis. Results obtained from this study presented the significance of outer-inner ratio and direction of loading
on the stress concentration and stress intensity factors, relating to crack initiation and crack growth
lives. |
| author2 |
Ang Hock Eng |
| author_facet |
Ang Hock Eng Ang, Jun Jie |
| format |
Final Year Project |
| author |
Ang, Jun Jie |
| author_sort |
Ang, Jun Jie |
| title |
Prediction of crack propagation path in pin loaded lugs using boundary element methods |
| title_short |
Prediction of crack propagation path in pin loaded lugs using boundary element methods |
| title_full |
Prediction of crack propagation path in pin loaded lugs using boundary element methods |
| title_fullStr |
Prediction of crack propagation path in pin loaded lugs using boundary element methods |
| title_full_unstemmed |
Prediction of crack propagation path in pin loaded lugs using boundary element methods |
| title_sort |
prediction of crack propagation path in pin loaded lugs using boundary element methods |
| publisher |
Nanyang Technological University |
| publishDate |
2022 |
| url |
https://hdl.handle.net/10356/159170 |
| _version_ |
1759854274954657792 |