Modelling of low-velocity impacts on composite beams in large displacement
The paper provides an evaluation of the nonlinear dynamic response of a cantilever beam made of composite material subjected to low-velocity impacts. The structure is assumed to respond in a quasi-static manner and modelled by a continuous beam in large displacement with a lumped mass attached. Firs...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Gruppo Italiano Frattura
2021-10-01
|
| Series: | Fracture and Structural Integrity |
| Subjects: | |
| Online Access: | https://www.fracturae.com/index.php/fis/article/view/3231/3345 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841564205580288000 |
|---|---|
| author | M. Utzeri M. Sasso G. Chiappini S. Lenci |
| author_facet | M. Utzeri M. Sasso G. Chiappini S. Lenci |
| author_sort | M. Utzeri |
| collection | DOAJ |
| description | The paper provides an evaluation of the nonlinear dynamic response of a cantilever beam made of composite material subjected to low-velocity impacts. The structure is assumed to respond in a quasi-static manner and modelled by a continuous beam in large displacement with a lumped mass attached. First, an analytical model was developed to study the free vibrations of a beam, taking into account the nonlinearities due to large displacements and inertia. Then, the analytical findings were compared with experimental test data. The vibration of a real composite beam has been acquired through high-speed imaging technique. The displacements of the beam were extracted by digital image analysis; then, the nonlinear parameters of the analytical model were determined by the Fitting Time History technique. The results obtained by the analytical model and the experimental test are compared with numerical analysis. The validated analytical model was adapted to study a low-velocity impact; the lumped mass was associated with a rigid projectile, whose initial speed represents the impact velocity |
| format | Article |
| id | doaj-art-dcb38935082e4b53af040c8a9fd2663a |
| 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-dcb38935082e4b53af040c8a9fd2663a2025-01-02T23:02:23ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932021-10-01155825427110.3221/IGF-ESIS.58.1910.3221/IGF-ESIS.58.19Modelling of low-velocity impacts on composite beams in large displacementM. UtzeriM. SassoG. ChiappiniS. LenciThe paper provides an evaluation of the nonlinear dynamic response of a cantilever beam made of composite material subjected to low-velocity impacts. The structure is assumed to respond in a quasi-static manner and modelled by a continuous beam in large displacement with a lumped mass attached. First, an analytical model was developed to study the free vibrations of a beam, taking into account the nonlinearities due to large displacements and inertia. Then, the analytical findings were compared with experimental test data. The vibration of a real composite beam has been acquired through high-speed imaging technique. The displacements of the beam were extracted by digital image analysis; then, the nonlinear parameters of the analytical model were determined by the Fitting Time History technique. The results obtained by the analytical model and the experimental test are compared with numerical analysis. The validated analytical model was adapted to study a low-velocity impact; the lumped mass was associated with a rigid projectile, whose initial speed represents the impact velocityhttps://www.fracturae.com/index.php/fis/article/view/3231/3345impact dynamicscomposite beamnonlinear frequenciesnonlinear dynamics |
| spellingShingle | M. Utzeri M. Sasso G. Chiappini S. Lenci Modelling of low-velocity impacts on composite beams in large displacement Fracture and Structural Integrity impact dynamics composite beam nonlinear frequencies nonlinear dynamics |
| title | Modelling of low-velocity impacts on composite beams in large displacement |
| title_full | Modelling of low-velocity impacts on composite beams in large displacement |
| title_fullStr | Modelling of low-velocity impacts on composite beams in large displacement |
| title_full_unstemmed | Modelling of low-velocity impacts on composite beams in large displacement |
| title_short | Modelling of low-velocity impacts on composite beams in large displacement |
| title_sort | modelling of low velocity impacts on composite beams in large displacement |
| topic | impact dynamics composite beam nonlinear frequencies nonlinear dynamics |
| url | https://www.fracturae.com/index.php/fis/article/view/3231/3345 |
| work_keys_str_mv | AT mutzeri modellingoflowvelocityimpactsoncompositebeamsinlargedisplacement AT msasso modellingoflowvelocityimpactsoncompositebeamsinlargedisplacement AT gchiappini modellingoflowvelocityimpactsoncompositebeamsinlargedisplacement AT slenci modellingoflowvelocityimpactsoncompositebeamsinlargedisplacement |