The effect of the crack length and direction on the stresses and their distribution around the crack on cylindrical shell of a composite material
| dc.contributor.advisor | Mendoz, Idalberto (Professor) | |
| dc.contributor.author | Hagos, Mulugeta | |
| dc.date.accessioned | 2018-07-06T11:13:49Z | |
| dc.date.accessioned | 2023-11-18T06:29:26Z | |
| dc.date.available | 2018-07-06T11:13:49Z | |
| dc.date.available | 2023-11-18T06:29:26Z | |
| dc.date.issued | 2010-07 | |
| dc.description.abstract | Composite materials are artificially made materials used in various mechanical applications like shells and plates. Composite materials are nowadays commonly used in the aviation industry and marine application in the form of vessels or shells. In this work the stress and strain distributions around the surface cracked cylindrical shell structure have been presented by studying, the effect of the crack length and direction on stress, anisotropic elasticity relations and stress field equations of surface crack problems in composite materials, finally finite element method simulation is applied to investigate the stress and strain distribution around the surface crack in a composite material cylindrical shell structure. Mathematical modeling and finite element simulation of the surface cracked cylindrical shell was performed and the problem was finally solved using ANSYS finite element method package. In general, the maximum Von Misses stress at the crack tip generally increase as crack length increase and the internal axial crack orientation has shown the maximum critical von Misses stress distribution around the surface crack because of the nature of curved geometry of the shell structure and the far field tangentially applied stress tries to open the surface crack. | en_US |
| dc.description.sponsorship | Addis Ababa University | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/6976 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Mechanical Engineering | en_US |
| dc.title | The effect of the crack length and direction on the stresses and their distribution around the crack on cylindrical shell of a composite material | en_US |
| dc.type | Thesis | en_US |