Abstract Background/Objectives: Fiber-reinforced polymer (FRP) sandwich panels are increasingly making their way into structural engineering applications. One of these applications is the blast mitigation. This is attributed to FRP ability of absorbing considerable amount of energy relative to their low density. Methods/Statistical Analysis: In this study, FRP sandwich panels are numerically studied using an explicit finite element code ANSYS AUTODYN. The numerical model is then validated with the experimental field tests in the literature. The inner core configurations that have been studied in the experimental field tests were formed from different orientations of the honeycomb shape. On the other hand, the conducted numerical study has proposed a new core configuration. The new core configuration is formulated from a combination of woven and honeycomb shapes. Results: Throughout this study, two performance parameters are considered; the amount of the energy absorbed by the panels and the peak deformation of the panels. Following, a parametric study has been conducted with more variations of the studied parameters to examine the enhancement of the panels' performance. Conclusion: It is found that the numerical results have shown a good agreement with the experimental measurements. rthermore, the analyses have revealed that using the proposed core configuration obviously enhances the FRP panels’ behavior when subjected to blast loads. *Author for correspondence Indian Journals of Science and Technology, Vol 9(18), DOI: 10.17485/ijst/2016/v9i18/93751, May 2016 ISSN (Print) : 0974-6846 ISSN (Online) : 0974-5645 Efect of the Blast Load on FRP Panels and Analysis of Resistance Fereydon Omidinasab 1 , Hossein Rezaei 1 , Peyman Beiranvand 1 * and Mohammad Hossein Naseri Fard 2 1 Department of Civil Engineering, Lorestan University, Khorram abad, Iran; Rezaei.hossewin34@gmail.com, Omidinasabfereydon1@gmail.com, Peymanbeiranvand12@gmail.com 2 Department of Civil Engineering, Islamic Azad University of Yazd, Iran Keywords: Blast Load, Fiber Reinforced Polymers, Finite Element Modeling, Sandwich Panels 1. Introduction Recently, blast loads have received considerable atten- tion due to the increasing occurrences of diferent accidental or intentional events. Such events adversely afect diferent structures and relatively, their occupants. Normally, con- ventional structures are not designed to resist blast loads. Terefore, it is becoming increasingly important to focus on the design and retroft of these structures against blast loads. However, one of the main challenges that face researchers is the feasibility of providing an adequate level of protection without going for designing more bunker- like structures that make people think that their lifestyle or daily routine has been changed. Maneuverable blast walls can be one of the solutions to shield a building or other structures from blast loads. Using maneuverable structures provides a refective surface for the blast waves and limits the strength of the load on the structure of interest. At a higher level of threat, maneuver- able walls are erected around structures as a frst line of defense, increasing the stand-of distance. Ease of assemble and portability are two factors that have to be taken into consideration while designing such types of walls. Zhou and Hao studied numerically the efectiveness of blast bar- riers for blast reduction. Tey found that the erection of a barrier between an explosion and a building can reduce the peak refected pressures and impulses, which are cre- ated on the surface of a building and delay the arrival time of blast wave 1 . Moveable walls with such specifcations Edited with the trial version of Foxit Advanced PDF Editor To remove this notice, visit: www.foxitsoftware.com/shopping