Experimental study on failure detection of sandwich panels with different cores under bending, vibration and cyclic impact loading, use of piezoelectric technology DOI

Bassima Tablit,

A. Chellil, A. Houari

и другие.

Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications, Год журнала: 2025, Номер unknown

Опубликована: Март 18, 2025

The main objective of this work is to characterise sandwich panels with carbon/epoxy composite skins and cores different materials (Expanded polystyrene foam, polyurethane foam injection sample) under three-point bending tests in free/free vibration repeated impact. analysis the behavior aims determine flexibility or stiffness these panels. However, impact failure modes strength three Indeed, damage was carried out using piezoelectric sensors connected an acquisition chain advanced signal processing technique, which allows precise detection quantification damage. Using technology, system ensures structures’ safety reliability by allowing early accurate potential relying on bonded capture responses can improve its safety, thus reducing maintenance costs ensuring extension service life. results various showed that carbon fibre resin matrix skin offers good protection types used In addition, panel expanded core responded better than other tests. tests, injected proved effective absorbing initial impacts. On hand, ability absorb impacts while more extended degradation two

Язык: Английский

Experimental study on failure detection of sandwich panels with different cores under bending, vibration and cyclic impact loading, use of piezoelectric technology DOI

Bassima Tablit,

A. Chellil, A. Houari

и другие.

Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications, Год журнала: 2025, Номер unknown

Опубликована: Март 18, 2025

The main objective of this work is to characterise sandwich panels with carbon/epoxy composite skins and cores different materials (Expanded polystyrene foam, polyurethane foam injection sample) under three-point bending tests in free/free vibration repeated impact. analysis the behavior aims determine flexibility or stiffness these panels. However, impact failure modes strength three Indeed, damage was carried out using piezoelectric sensors connected an acquisition chain advanced signal processing technique, which allows precise detection quantification damage. Using technology, system ensures structures’ safety reliability by allowing early accurate potential relying on bonded capture responses can improve its safety, thus reducing maintenance costs ensuring extension service life. results various showed that carbon fibre resin matrix skin offers good protection types used In addition, panel expanded core responded better than other tests. tests, injected proved effective absorbing initial impacts. On hand, ability absorb impacts while more extended degradation two

Язык: Английский

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