Impact resistant properties of Kagome truss reinforced composite panels

Jeong-Il Choi, Se-Eon Park, Sang-Kyu Lee, Gyu-Yong Kim, Jae-Seung Hwang and Bang Yeon Lee

Abstract

This paper presents an experimental study exploring impact resistant properties of Kagome truss reinforced composite panels. Three types of panels with different materials and reinforcements, i.e., ultra-high-performance mortar, steel fiber, and Kagome truss, were designed and manufactured. High-velocity projectile impact tests were performed to investigate the impact response of panels with dimensions of 200 mmx200 mmx40 mm. The projectile used in the testing was a steel slug with a hemispherical front; the impact energy was 1 557 J. Test results showed that the Kagome truss reinforcement was effective at improving the impact resistance of panels in terms of failure patterns, damaged area, and mass loss. Synergy effects of a combination of Kagome truss and fiber reinforcements for the improvement of impact resistance capacity of ultra-high-performance mortar were also observed.

Key Words

composite; impact resistance; Kagome truss; projectile impact

Address

Jeong-Il Choi: Biohousing Research Center, Chonnam National University, Gwangju 61186, Republic of Korea Se-Eon Park: Department of Architecture and Civil Engineering, Chonnam National University, Gwangju 61186, Republic of Korea Sang-Kyu Lee: Department of Architecture and Civil Engineering, Chonnam National University, Gwangju 61186, Republic of Korea Jae-Seung Hwang: Department of Architecture and Civil Engineering, Chonnam National University, Gwangju 61186, Republic of Korea; School of Architecture, Chonnam National University, Gwangju 61186, Republic of Korea Bang Yeon Lee: Department of Architecture and Civil Engineering, Chonnam National University, Gwangju 61186, Republic of Korea; School of Architecture, Chonnam National University, Gwangju 61186, Republic of Korea

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