| Title: |
Terahertz pulsed imaging of low velocity impact damage in woven fiber composite laminates |
| Authors: |
Pomarède, Pascal; Miqoi, Nada; Christophe, David; S. Citrin, David; Meraghni, Fodil; Locquet, Alexandre |
| Contributors: |
Georgia Tech Lorraine Metz; Georgia Institute of Technology Atlanta -Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC); Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC)-Arts et Métiers Sciences et Technologies; Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux (LEM3); Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Arts et Métiers Sciences et Technologies; Georgia Institute of Technology Atlanta |
| Source: |
ISSN: 0021-9983. |
| Publisher Information: |
CCSD; SAGE Publications |
| Publication Year: |
2023 |
| Collection: |
Université de Franche-Comté (UFC): HAL |
| Subject Terms: |
Woven fiber reinforced composite; Non-Destructive Evaluation; Low-velocity impact; Damage detection; Terahertz pulse imaging; [SPI]Engineering Sciences [physics] |
| Description: |
International audience ; Recently, terahertz pulse imaging has been used extensively to characterize internal defects in various electrically insulating materials. In this work, terahertz pulse imaging is used to identify the damage induced by low-velocity impact on woven glass-fiber reinforced polyamide laminates. Several impact energies are considered to study the damage initiation and propagation. The permanent indentation, known to be a relevant damage indicator, is extracted from the terahertz results and validated through comparison with profilometry. Further, the criticality of the damage, in terms of the number of composite plies in which the cracks propagate, can be clearly determined from terahertz imaging. These observations are validated through X-ray tomographic observations and analysis. Finally, a strong connection is established between the evolution of the permanent indentation and the appearance, and criticality, of the low-velocity impactinduced damage. These observations suggest that terahertz imaging is a reliable technique for the nondestructive assessment of impact damage in glass fiber composites. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| DOI: |
10.1177/00219983231209381 |
| Availability: |
https://hal.science/hal-04273370; https://hal.science/hal-04273370v1/document; https://hal.science/hal-04273370v1/file/23-08-09-Paper3THzDamageImpactAfterReview-forHAL.pdf; https://doi.org/10.1177/00219983231209381 |
| Rights: |
https://about.hal.science/hal-authorisation-v1/ ; info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.ABF99F27 |
| Database: |
BASE |