Damage severity for cracked simply supported beams
This paper investigated the static and dynamic behaviors of isotropic cracked simply supported beam using finite element analysis (FEA), ANSYS software. Modal and harmonic vibration analysis of intact and damaged beam were performed in order to extract mode shapes of bending vibration, natural frequ...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2021-10-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://www.fracturae.com/index.php/fis/article/view/3204/3355 |
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| _version_ | 1841562890664935424 |
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| author | Ehab Samir Mohamed Mohamed Soliman |
| author_facet | Ehab Samir Mohamed Mohamed Soliman |
| author_sort | Ehab Samir Mohamed Mohamed Soliman |
| collection | DOAJ |
| description | This paper investigated the static and dynamic behaviors of isotropic cracked simply supported beam using finite element analysis (FEA), ANSYS software. Modal and harmonic vibration analysis of intact and damaged beam were performed in order to extract mode shapes of bending vibration, natural frequencies and obtain frequency response diagram. Static finite element analysis of undamaged and damaged simply supported beam was carried out to determine static deflection, then stiffness of intact and cracked beam was computed using conventional formula. Crack damage severity of damaged beam was calculated and it is noticed that as crack position is increased from left hand support of beam up to central point and crack depth is increased, then crack damage severity increases. The effect of mode shape pattern is investigated and it is found that the amount of decreasing of natural frequency is proportional to the normalized mode shape at position of crack. The exhibited correlation between results for damaged beam revealed that crack damage severity is proportional to static deflection and inversely proportional to first mode frequency. |
| format | Article |
| id | doaj-art-f418d0db88d94e619ab6844ce351e9a7 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2021-10-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-f418d0db88d94e619ab6844ce351e9a72025-01-03T00:40:18ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932021-10-01155815116510.3221/IGF-ESIS.58.1110.3221/IGF-ESIS.58.11Damage severity for cracked simply supported beamsEhab Samir Mohamed Mohamed SolimanThis paper investigated the static and dynamic behaviors of isotropic cracked simply supported beam using finite element analysis (FEA), ANSYS software. Modal and harmonic vibration analysis of intact and damaged beam were performed in order to extract mode shapes of bending vibration, natural frequencies and obtain frequency response diagram. Static finite element analysis of undamaged and damaged simply supported beam was carried out to determine static deflection, then stiffness of intact and cracked beam was computed using conventional formula. Crack damage severity of damaged beam was calculated and it is noticed that as crack position is increased from left hand support of beam up to central point and crack depth is increased, then crack damage severity increases. The effect of mode shape pattern is investigated and it is found that the amount of decreasing of natural frequency is proportional to the normalized mode shape at position of crack. The exhibited correlation between results for damaged beam revealed that crack damage severity is proportional to static deflection and inversely proportional to first mode frequency.https://www.fracturae.com/index.php/fis/article/view/3204/3355isotropicdamaged simply supported beamcrack damage severitymode shapestatic deflection |
| spellingShingle | Ehab Samir Mohamed Mohamed Soliman Damage severity for cracked simply supported beams Fracture and Structural Integrity isotropic damaged simply supported beam crack damage severity mode shape static deflection |
| title | Damage severity for cracked simply supported beams |
| title_full | Damage severity for cracked simply supported beams |
| title_fullStr | Damage severity for cracked simply supported beams |
| title_full_unstemmed | Damage severity for cracked simply supported beams |
| title_short | Damage severity for cracked simply supported beams |
| title_sort | damage severity for cracked simply supported beams |
| topic | isotropic damaged simply supported beam crack damage severity mode shape static deflection |
| url | https://www.fracturae.com/index.php/fis/article/view/3204/3355 |
| work_keys_str_mv | AT ehabsamirmohamedmohamedsoliman damageseverityforcrackedsimplysupportedbeams |