Structural models for the evaluation of eigen-properties in damaged spatial arches: a critical appraisal
Abstract The paper considers the eigen-properties of spatial arch structures in both undamaged and damaged configurations. In the literature, several models have been proposed for modelling damage, mainly in beam-like structures, based on the concepts of equivalent elastic weakened section, for conc...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Caliò, I. [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2016 |
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| Schlagwörter: |
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| Anmerkung: |
© Springer-Verlag Berlin Heidelberg 2016 |
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| Übergeordnetes Werk: |
Enthalten in: Archive of applied mechanics - Springer Berlin Heidelberg, 1991, 86(2016), 11 vom: 07. Juni, Seite 1853-1867 |
|---|---|
| Übergeordnetes Werk: |
volume:86 ; year:2016 ; number:11 ; day:07 ; month:06 ; pages:1853-1867 |
| Links: |
|---|
| DOI / URN: |
10.1007/s00419-016-1151-7 |
|---|
| Katalog-ID: |
OLC2071059603 |
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| 520 | |a Abstract The paper considers the eigen-properties of spatial arch structures in both undamaged and damaged configurations. In the literature, several models have been proposed for modelling damage, mainly in beam-like structures, based on the concepts of equivalent elastic weakened section, for concentrated damage, or stiffness reduction influence area, for distributed damage. In damage identification procedures, it is needed to numerically represent the actual structure in which a reliable damage model has to be assumed. An unsuitable damage representation may lead to wrong or misleading results that, although consistent with the assumed model, could be not representative of the actual unhealthy condition of the structure. In this paper, focusing the attention on spatial Timoshenko arches, the eigen-properties of the undamaged and the damaged structure are exactly evaluated, consistent with an assumed continuous model, and compared to the corresponding results provided by several detailed finite element simulations based either on mono- or three-dimensional models. In the assumed continuous model, the damage is represented by considering an appropriate reduction, in a certain zone, in the arch cross section. The comparison with the widely adopted spring equivalent model is also made. A comparative parametric study is developed showing the role of damage on the natural frequencies of vibration of spatial arches and allowing to point out some ambiguous results that may lead to false inverse problem solutions. | ||
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10.1007/s00419-016-1151-7 doi (DE-627)OLC2071059603 (DE-He213)s00419-016-1151-7-p DE-627 ger DE-627 rakwb eng 690 VZ Caliò, I. verfasserin aut Structural models for the evaluation of eigen-properties in damaged spatial arches: a critical appraisal 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag Berlin Heidelberg 2016 Abstract The paper considers the eigen-properties of spatial arch structures in both undamaged and damaged configurations. In the literature, several models have been proposed for modelling damage, mainly in beam-like structures, based on the concepts of equivalent elastic weakened section, for concentrated damage, or stiffness reduction influence area, for distributed damage. In damage identification procedures, it is needed to numerically represent the actual structure in which a reliable damage model has to be assumed. An unsuitable damage representation may lead to wrong or misleading results that, although consistent with the assumed model, could be not representative of the actual unhealthy condition of the structure. In this paper, focusing the attention on spatial Timoshenko arches, the eigen-properties of the undamaged and the damaged structure are exactly evaluated, consistent with an assumed continuous model, and compared to the corresponding results provided by several detailed finite element simulations based either on mono- or three-dimensional models. In the assumed continuous model, the damage is represented by considering an appropriate reduction, in a certain zone, in the arch cross section. The comparison with the widely adopted spring equivalent model is also made. A comparative parametric study is developed showing the role of damage on the natural frequencies of vibration of spatial arches and allowing to point out some ambiguous results that may lead to false inverse problem solutions. Arch Damage Structural models Natural frequencies Cracked arch Greco, A. aut D’Urso, D. aut Enthalten in Archive of applied mechanics Springer Berlin Heidelberg, 1991 86(2016), 11 vom: 07. Juni, Seite 1853-1867 (DE-627)130929700 (DE-600)1056088-9 (DE-576)02508755X 0939-1533 nnns volume:86 year:2016 number:11 day:07 month:06 pages:1853-1867 https://doi.org/10.1007/s00419-016-1151-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC GBV_ILN_30 GBV_ILN_70 GBV_ILN_150 GBV_ILN_267 GBV_ILN_2016 GBV_ILN_2018 GBV_ILN_2119 GBV_ILN_2333 GBV_ILN_4277 GBV_ILN_4313 AR 86 2016 11 07 06 1853-1867 |
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10.1007/s00419-016-1151-7 doi (DE-627)OLC2071059603 (DE-He213)s00419-016-1151-7-p DE-627 ger DE-627 rakwb eng 690 VZ Caliò, I. verfasserin aut Structural models for the evaluation of eigen-properties in damaged spatial arches: a critical appraisal 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag Berlin Heidelberg 2016 Abstract The paper considers the eigen-properties of spatial arch structures in both undamaged and damaged configurations. In the literature, several models have been proposed for modelling damage, mainly in beam-like structures, based on the concepts of equivalent elastic weakened section, for concentrated damage, or stiffness reduction influence area, for distributed damage. In damage identification procedures, it is needed to numerically represent the actual structure in which a reliable damage model has to be assumed. An unsuitable damage representation may lead to wrong or misleading results that, although consistent with the assumed model, could be not representative of the actual unhealthy condition of the structure. In this paper, focusing the attention on spatial Timoshenko arches, the eigen-properties of the undamaged and the damaged structure are exactly evaluated, consistent with an assumed continuous model, and compared to the corresponding results provided by several detailed finite element simulations based either on mono- or three-dimensional models. In the assumed continuous model, the damage is represented by considering an appropriate reduction, in a certain zone, in the arch cross section. The comparison with the widely adopted spring equivalent model is also made. A comparative parametric study is developed showing the role of damage on the natural frequencies of vibration of spatial arches and allowing to point out some ambiguous results that may lead to false inverse problem solutions. Arch Damage Structural models Natural frequencies Cracked arch Greco, A. aut D’Urso, D. aut Enthalten in Archive of applied mechanics Springer Berlin Heidelberg, 1991 86(2016), 11 vom: 07. Juni, Seite 1853-1867 (DE-627)130929700 (DE-600)1056088-9 (DE-576)02508755X 0939-1533 nnns volume:86 year:2016 number:11 day:07 month:06 pages:1853-1867 https://doi.org/10.1007/s00419-016-1151-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC GBV_ILN_30 GBV_ILN_70 GBV_ILN_150 GBV_ILN_267 GBV_ILN_2016 GBV_ILN_2018 GBV_ILN_2119 GBV_ILN_2333 GBV_ILN_4277 GBV_ILN_4313 AR 86 2016 11 07 06 1853-1867 |
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10.1007/s00419-016-1151-7 doi (DE-627)OLC2071059603 (DE-He213)s00419-016-1151-7-p DE-627 ger DE-627 rakwb eng 690 VZ Caliò, I. verfasserin aut Structural models for the evaluation of eigen-properties in damaged spatial arches: a critical appraisal 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag Berlin Heidelberg 2016 Abstract The paper considers the eigen-properties of spatial arch structures in both undamaged and damaged configurations. In the literature, several models have been proposed for modelling damage, mainly in beam-like structures, based on the concepts of equivalent elastic weakened section, for concentrated damage, or stiffness reduction influence area, for distributed damage. In damage identification procedures, it is needed to numerically represent the actual structure in which a reliable damage model has to be assumed. An unsuitable damage representation may lead to wrong or misleading results that, although consistent with the assumed model, could be not representative of the actual unhealthy condition of the structure. In this paper, focusing the attention on spatial Timoshenko arches, the eigen-properties of the undamaged and the damaged structure are exactly evaluated, consistent with an assumed continuous model, and compared to the corresponding results provided by several detailed finite element simulations based either on mono- or three-dimensional models. In the assumed continuous model, the damage is represented by considering an appropriate reduction, in a certain zone, in the arch cross section. The comparison with the widely adopted spring equivalent model is also made. A comparative parametric study is developed showing the role of damage on the natural frequencies of vibration of spatial arches and allowing to point out some ambiguous results that may lead to false inverse problem solutions. Arch Damage Structural models Natural frequencies Cracked arch Greco, A. aut D’Urso, D. aut Enthalten in Archive of applied mechanics Springer Berlin Heidelberg, 1991 86(2016), 11 vom: 07. Juni, Seite 1853-1867 (DE-627)130929700 (DE-600)1056088-9 (DE-576)02508755X 0939-1533 nnns volume:86 year:2016 number:11 day:07 month:06 pages:1853-1867 https://doi.org/10.1007/s00419-016-1151-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC GBV_ILN_30 GBV_ILN_70 GBV_ILN_150 GBV_ILN_267 GBV_ILN_2016 GBV_ILN_2018 GBV_ILN_2119 GBV_ILN_2333 GBV_ILN_4277 GBV_ILN_4313 AR 86 2016 11 07 06 1853-1867 |
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10.1007/s00419-016-1151-7 doi (DE-627)OLC2071059603 (DE-He213)s00419-016-1151-7-p DE-627 ger DE-627 rakwb eng 690 VZ Caliò, I. verfasserin aut Structural models for the evaluation of eigen-properties in damaged spatial arches: a critical appraisal 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag Berlin Heidelberg 2016 Abstract The paper considers the eigen-properties of spatial arch structures in both undamaged and damaged configurations. In the literature, several models have been proposed for modelling damage, mainly in beam-like structures, based on the concepts of equivalent elastic weakened section, for concentrated damage, or stiffness reduction influence area, for distributed damage. In damage identification procedures, it is needed to numerically represent the actual structure in which a reliable damage model has to be assumed. An unsuitable damage representation may lead to wrong or misleading results that, although consistent with the assumed model, could be not representative of the actual unhealthy condition of the structure. In this paper, focusing the attention on spatial Timoshenko arches, the eigen-properties of the undamaged and the damaged structure are exactly evaluated, consistent with an assumed continuous model, and compared to the corresponding results provided by several detailed finite element simulations based either on mono- or three-dimensional models. In the assumed continuous model, the damage is represented by considering an appropriate reduction, in a certain zone, in the arch cross section. The comparison with the widely adopted spring equivalent model is also made. A comparative parametric study is developed showing the role of damage on the natural frequencies of vibration of spatial arches and allowing to point out some ambiguous results that may lead to false inverse problem solutions. Arch Damage Structural models Natural frequencies Cracked arch Greco, A. aut D’Urso, D. aut Enthalten in Archive of applied mechanics Springer Berlin Heidelberg, 1991 86(2016), 11 vom: 07. Juni, Seite 1853-1867 (DE-627)130929700 (DE-600)1056088-9 (DE-576)02508755X 0939-1533 nnns volume:86 year:2016 number:11 day:07 month:06 pages:1853-1867 https://doi.org/10.1007/s00419-016-1151-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC GBV_ILN_30 GBV_ILN_70 GBV_ILN_150 GBV_ILN_267 GBV_ILN_2016 GBV_ILN_2018 GBV_ILN_2119 GBV_ILN_2333 GBV_ILN_4277 GBV_ILN_4313 AR 86 2016 11 07 06 1853-1867 |
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10.1007/s00419-016-1151-7 doi (DE-627)OLC2071059603 (DE-He213)s00419-016-1151-7-p DE-627 ger DE-627 rakwb eng 690 VZ Caliò, I. verfasserin aut Structural models for the evaluation of eigen-properties in damaged spatial arches: a critical appraisal 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag Berlin Heidelberg 2016 Abstract The paper considers the eigen-properties of spatial arch structures in both undamaged and damaged configurations. In the literature, several models have been proposed for modelling damage, mainly in beam-like structures, based on the concepts of equivalent elastic weakened section, for concentrated damage, or stiffness reduction influence area, for distributed damage. In damage identification procedures, it is needed to numerically represent the actual structure in which a reliable damage model has to be assumed. An unsuitable damage representation may lead to wrong or misleading results that, although consistent with the assumed model, could be not representative of the actual unhealthy condition of the structure. In this paper, focusing the attention on spatial Timoshenko arches, the eigen-properties of the undamaged and the damaged structure are exactly evaluated, consistent with an assumed continuous model, and compared to the corresponding results provided by several detailed finite element simulations based either on mono- or three-dimensional models. In the assumed continuous model, the damage is represented by considering an appropriate reduction, in a certain zone, in the arch cross section. The comparison with the widely adopted spring equivalent model is also made. A comparative parametric study is developed showing the role of damage on the natural frequencies of vibration of spatial arches and allowing to point out some ambiguous results that may lead to false inverse problem solutions. Arch Damage Structural models Natural frequencies Cracked arch Greco, A. aut D’Urso, D. aut Enthalten in Archive of applied mechanics Springer Berlin Heidelberg, 1991 86(2016), 11 vom: 07. Juni, Seite 1853-1867 (DE-627)130929700 (DE-600)1056088-9 (DE-576)02508755X 0939-1533 nnns volume:86 year:2016 number:11 day:07 month:06 pages:1853-1867 https://doi.org/10.1007/s00419-016-1151-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC GBV_ILN_30 GBV_ILN_70 GBV_ILN_150 GBV_ILN_267 GBV_ILN_2016 GBV_ILN_2018 GBV_ILN_2119 GBV_ILN_2333 GBV_ILN_4277 GBV_ILN_4313 AR 86 2016 11 07 06 1853-1867 |
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Structural models for the evaluation of eigen-properties in damaged spatial arches: a critical appraisal |
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Structural models for the evaluation of eigen-properties in damaged spatial arches: a critical appraisal |
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Caliò, I. |
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Archive of applied mechanics |
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Caliò, I. Greco, A. D’Urso, D. |
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Caliò, I. |
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10.1007/s00419-016-1151-7 |
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structural models for the evaluation of eigen-properties in damaged spatial arches: a critical appraisal |
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Structural models for the evaluation of eigen-properties in damaged spatial arches: a critical appraisal |
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Abstract The paper considers the eigen-properties of spatial arch structures in both undamaged and damaged configurations. In the literature, several models have been proposed for modelling damage, mainly in beam-like structures, based on the concepts of equivalent elastic weakened section, for concentrated damage, or stiffness reduction influence area, for distributed damage. In damage identification procedures, it is needed to numerically represent the actual structure in which a reliable damage model has to be assumed. An unsuitable damage representation may lead to wrong or misleading results that, although consistent with the assumed model, could be not representative of the actual unhealthy condition of the structure. In this paper, focusing the attention on spatial Timoshenko arches, the eigen-properties of the undamaged and the damaged structure are exactly evaluated, consistent with an assumed continuous model, and compared to the corresponding results provided by several detailed finite element simulations based either on mono- or three-dimensional models. In the assumed continuous model, the damage is represented by considering an appropriate reduction, in a certain zone, in the arch cross section. The comparison with the widely adopted spring equivalent model is also made. A comparative parametric study is developed showing the role of damage on the natural frequencies of vibration of spatial arches and allowing to point out some ambiguous results that may lead to false inverse problem solutions. © Springer-Verlag Berlin Heidelberg 2016 |
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Abstract The paper considers the eigen-properties of spatial arch structures in both undamaged and damaged configurations. In the literature, several models have been proposed for modelling damage, mainly in beam-like structures, based on the concepts of equivalent elastic weakened section, for concentrated damage, or stiffness reduction influence area, for distributed damage. In damage identification procedures, it is needed to numerically represent the actual structure in which a reliable damage model has to be assumed. An unsuitable damage representation may lead to wrong or misleading results that, although consistent with the assumed model, could be not representative of the actual unhealthy condition of the structure. In this paper, focusing the attention on spatial Timoshenko arches, the eigen-properties of the undamaged and the damaged structure are exactly evaluated, consistent with an assumed continuous model, and compared to the corresponding results provided by several detailed finite element simulations based either on mono- or three-dimensional models. In the assumed continuous model, the damage is represented by considering an appropriate reduction, in a certain zone, in the arch cross section. The comparison with the widely adopted spring equivalent model is also made. A comparative parametric study is developed showing the role of damage on the natural frequencies of vibration of spatial arches and allowing to point out some ambiguous results that may lead to false inverse problem solutions. © Springer-Verlag Berlin Heidelberg 2016 |
| abstract_unstemmed |
Abstract The paper considers the eigen-properties of spatial arch structures in both undamaged and damaged configurations. In the literature, several models have been proposed for modelling damage, mainly in beam-like structures, based on the concepts of equivalent elastic weakened section, for concentrated damage, or stiffness reduction influence area, for distributed damage. In damage identification procedures, it is needed to numerically represent the actual structure in which a reliable damage model has to be assumed. An unsuitable damage representation may lead to wrong or misleading results that, although consistent with the assumed model, could be not representative of the actual unhealthy condition of the structure. In this paper, focusing the attention on spatial Timoshenko arches, the eigen-properties of the undamaged and the damaged structure are exactly evaluated, consistent with an assumed continuous model, and compared to the corresponding results provided by several detailed finite element simulations based either on mono- or three-dimensional models. In the assumed continuous model, the damage is represented by considering an appropriate reduction, in a certain zone, in the arch cross section. The comparison with the widely adopted spring equivalent model is also made. A comparative parametric study is developed showing the role of damage on the natural frequencies of vibration of spatial arches and allowing to point out some ambiguous results that may lead to false inverse problem solutions. © Springer-Verlag Berlin Heidelberg 2016 |
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Structural models for the evaluation of eigen-properties in damaged spatial arches: a critical appraisal |
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