Crashworthiness Analysis of Aluminum Corrugated-Core Sandwich Panels Under Impact

Eltawosy, Sara Ali; Elkilani, Heba; Fathallah, Elsayed; Saad-Eldeen, Saad

doi:10.21608/pserj.2025.396167.1418

	Crashworthiness Analysis of Aluminum Corrugated-Core Sandwich Panels Under Impact
Port-Said Engineering Research Journal
Articles in Press, Accepted Manuscript, Available Online from 10 July 2025
Document Type: Original Article
DOI: 10.21608/pserj.2025.396167.1418
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Authors
Sara Ali Eltawosy ¹; Heba Elkilani ¹; Elsayed Fathallah²; Saad Saad-Eldeen ³
¹Naval Architecture and Marine Engineering Department, Faculty of Engineering, Port Said University, Port Fouad, Egypt
²Military Technical College, Cairo, Egypt
³Naval Architecture and Marine Engineering Department, Faculty of Engineering, Port Said University, Port Fouad, Egypt,
Abstract
Designing lightweight structures with high energy absorption capability is a key challenge in engineering applications subjected to impact loading, such as marine, aerospace, and automotive. Sandwich panels with corrugated cores offer a promising solution due to their structural efficiency and customizable geometry. This study investigates the crashworthiness of aluminum corrugated-core sandwich panels under planar impact, focusing on the influence of design parameters such as face sheet thickness, core wall thickness, and core corrugation angle. A parametric approach is adopted to examine how these variables affect the panel’s deformation response and energy absorption behavior while altering one parameter and keeping the other parameters constant. Additionally, a stiffened panel of equivalent weight is modeled for performance benchmarking. The investigation employs numerical simulations to assess structural efficiency through force–displacement response, internal energy accumulation, and specific energy absorption (SEA) criteria. The findings aim to support the development of lightweight panel designs for impact-critical applications.
Keywords
Numerical Analysis; Sandwich Panel Structures; Crashworthiness; Finite Element


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