شايگان شاهدحقيقي

Shock waves produced by impacts or explosions can cause severe damage to structures. Multilayer panel designs can effectively absorb the energy of blast waves and impacts to protect systems and components. In this thesis, the energy absorption capabilities of various multilayer sandwich panel configurations are analyzed when subjected to shock wave loading conditions. Numerical modeling and simulation are conducted in FEM software to eva‎luate the panel responses. Specifically, steel honeycomb core and foam core sandwich panels are assessed under blast loads of different intensities. The honeycomb core panels exhibit progressive buckling and core compression with increasing impulse. The foam core panels display extensive crushable foam deformation that reduces force transmission to the back face sheet by over 60% compared to non-foam designs. Strong correlation is demonstrated between the numerical predictions and established blast wave criteria as well as prior experimental results from literature. This research provides valuable perspective into the shock wave mitigation potential of properly designed sandwich composites, setting the stage for further optimization of high-performance multilayer structures suitable for impact and blast protection applications spanning transportation, defense, and civil infrastructure sectors.

موج شوك , جاذب انرژي , موج انفجار

Shockwave , Energy-Absorption , Blast-wave

Shaygan Shahed Haghighi

Javad Marzbanrad