6533b828fe1ef96bd1288667
RESEARCH PRODUCT
A Strain Sensing Structural Health Monitoring System for Delaminated Composite Structures
Alberto MilazzoCalogero OrlandoAndrea Alaimosubject
Damaged componentComposite materialMaterials scienceOptical fiberElectric sensing devicePiezoelectric sensorComposite numberDelaminated composite structureDynamic behaviorStructural healthStructure (composition) Piezoelectric transducersBoundary elementlaw.inventionSafety critical applicationlawStructural health monitoring systems Boundary element methodStructural componentDynamic loadSettore ING-IND/04 - Costruzioni E Strutture AerospazialiBoundary element methodStructural health monitoringbusiness.industryDelamination lengthIsotropyDelaminationDamaged structureGeneral MedicineStructural engineeringPiezoelectricityMechanical engineeringPrimary taskDynamic responseDelaminationDual reciprocityStrain sensingStructural health monitoringbusinessPiezoelectric sensordescription
Structural Health Monitoring (SHM) for composite materials is becoming a primary task due to their extended use in safety critical applications. Different methods, based on the use of piezoelectric transducers as well as of fiber optics, has been successfully proposed to detect and monitor damage in composite structural components with particular attention focused on delamination cracks.In the present paper a Structural Health Monitoring model, based on the use of piezoelectric sensors, already proposed by the authors for isotropic damaged components, is extended to delaminated composite structures. The dynamic behavior of the host damaged structure and the bonded piezoelectric sensors is modeled by means of a boundary element approach based on the Dual Reciprocity BEM. The sensitivity of the piezoelectric sensors has been studied by varying the delamination length characterizing the skin/stiffener debonding phenomenon of composite structures undergoing dynamic loads. © (2013) Trans Tech Publications, Switzerland.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-12-01 | Applied Mechanics and Materials |