Experimental and numerical study on reinforced concrete slab subjected to open and closed-end drop weight impact
Concrete structures, widely used in construction, are designed to withstand various static and dynamic loads, including destructive impact forces. As critical structural elements, slabs are particularly vulnerable to impact loads, which can significantly affect their integrity. Additionally, the geo...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-09-01
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| Series: | Results in Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123025024351 |
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| Summary: | Concrete structures, widely used in construction, are designed to withstand various static and dynamic loads, including destructive impact forces. As critical structural elements, slabs are particularly vulnerable to impact loads, which can significantly affect their integrity. Additionally, the geometry and surface characteristics of impacting projectiles can influence the extent and type of damage sustained. Therefore, this study investigates the impact effects of cylindrical projectiles on reinforced concrete slabs using experimental and numerical approaches. In this regard, a reinforced concrete slab (40 × 40 × 10 cm with Φ8 ST37 bars) was fabricated and subjected to impact from a cylindrical projectile with a closed and open end, whose weight was 13 kg, made of ST52 steel. The impact scenario was also simulated using Abaqus/Explicit finite element software after FEM model verification with an experimental study, implementing CDP and the same boundary conditions as in the test setup to analyze structural responses. Results indicate that reinforced concrete slabs experience greater damage when impacted by a closed-end cylindrical projectile compared to an open-end one. The Abaqus simulations corroborate these findings, showing higher destruction rates, central displacement, stress concentrations, and support reactions for the closed-end impact. |
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| ISSN: | 2590-1230 |