Some crack problems in composite material
This report covers the parametric study of the stress intensity factor of cracks in composite materials. The analysis of crack in composites was performed using Abaqus Computer Aided Engineering (CAE) software. It involved modelling a 2‐dimensional composite with a notch crack, where the...
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
| Published: |
2011
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/10356/45978 |
| _version_ | 1826112224328941568 |
|---|---|
| author | Bong, Hendra. |
| author2 | Xiao Zhongmin |
| author_facet | Xiao Zhongmin Bong, Hendra. |
| author_sort | Bong, Hendra. |
| collection | NTU |
| description | This report covers the parametric study of the stress intensity factor of cracks in
composite materials.
The analysis of crack in composites was performed using Abaqus Computer Aided
Engineering (CAE) software. It involved modelling a 2‐dimensional composite with a
notch crack, where the stress intensity factors at the crack tip K1 and K2 were
recorded. Different crack locations were studied and experimental analysis has
shown that stress intensity factor increases if the crack appears nearer to the
surface of the plane.
The stress intensity is also greatly affected by the ratio of the modulus of the
constituent materials. Analysis has shown that as the crack approaches the
constituent material with lower modulus, the stress intensity is bound to increase.
The reverse is true for material with higher modulus.
A separate analysis was performed to learn the behaviour of the stress intensity
factor at the crack tip when a specimen is coated with a varying thickness of coating
material. Results have shown that as the thickness of the coating material increases,
the stress intensity factor decreases. |
| first_indexed | 2024-10-01T03:03:48Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/45978 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:03:48Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | ntu-10356/459782023-03-04T18:34:07Z Some crack problems in composite material Bong, Hendra. Xiao Zhongmin School of Mechanical and Aerospace Engineering DRNTU::Engineering::Materials::Composite materials This report covers the parametric study of the stress intensity factor of cracks in composite materials. The analysis of crack in composites was performed using Abaqus Computer Aided Engineering (CAE) software. It involved modelling a 2‐dimensional composite with a notch crack, where the stress intensity factors at the crack tip K1 and K2 were recorded. Different crack locations were studied and experimental analysis has shown that stress intensity factor increases if the crack appears nearer to the surface of the plane. The stress intensity is also greatly affected by the ratio of the modulus of the constituent materials. Analysis has shown that as the crack approaches the constituent material with lower modulus, the stress intensity is bound to increase. The reverse is true for material with higher modulus. A separate analysis was performed to learn the behaviour of the stress intensity factor at the crack tip when a specimen is coated with a varying thickness of coating material. Results have shown that as the thickness of the coating material increases, the stress intensity factor decreases. Bachelor of Engineering (Mechanical Engineering) 2011-06-27T04:21:14Z 2011-06-27T04:21:14Z 2011 2011 Final Year Project (FYP) http://hdl.handle.net/10356/45978 en Nanyang Technological University 67 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Materials::Composite materials Bong, Hendra. Some crack problems in composite material |
| title | Some crack problems in composite material |
| title_full | Some crack problems in composite material |
| title_fullStr | Some crack problems in composite material |
| title_full_unstemmed | Some crack problems in composite material |
| title_short | Some crack problems in composite material |
| title_sort | some crack problems in composite material |
| topic | DRNTU::Engineering::Materials::Composite materials |
| url | http://hdl.handle.net/10356/45978 |
| work_keys_str_mv | AT bonghendra somecrackproblemsincompositematerial |