RT Journal Article
T1 Impact response of repaired sandwich structures
A1 Iváñez del Pozo, Inés
A1 Sánchez Sáez, Sonia
A1 García Castillo, Shirley Kalamis
A1 Barbero Pozuelo, Enrique
A1 Amaro, Ana M.
A1 Reis, Paulo N. B.
AB The low-velocity impact behavior of repaired sandwich structures with woven carbon/epoxy face-sheets and Nomex honeycomb core is studied experimentally. First, sandwich plates were subjected to ballistic impacts; the damaged area was removed, filled by nano-enhanced resin and covered by a double-external patch. Afterwards, the repaired sandwich plates were impacted at low-velocity. Peak load and absorbed energy were determined for several impact energies and compared with results for non-repaired (intact) sandwich plates. For all impact energies tested, repaired specimens show higher peak load and lower absorbed energy than the intact ones. Additionally, tested sandwich plates were cut transversally in order to observe the resulting damage, concluding that is different in both configurations, and confirming that it is initiated at higher impact energies in repaired structures.
PB Wiley
SN 0272-8397
YR 2020
FD 2020-08
LK https://hdl.handle.net/10016/33996
UL https://hdl.handle.net/10016/33996
LA eng
NO Fundação para a Ciência e a Tecnologia, Grant/Award Number: UID/EMS/00285/2020; Ministerio de Economía, Industria y Competitividad, Gobierno de España, Grant/Award Number: DPI2017-86324-R.
DS e-Archivo
RD 3 jun. 2024