Cutting failure behavior of foam core sandwich plates

• Published in: International journal of solids and structures Vol. 303; p. 113009
• Main Authors: Yuan, Hui, Wu, Xiwei, Zhang, Jianxun
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 15.10.2024
• Subjects: Aluminum foam; Cut; Failure mechanism; Sandwich plate; Failure mechanism; Sandwich plate; Cut; Aluminum foam
• ISSN: 0020-7683
• DOI: 10.1016/j.ijsolstr.2024.113009

•Cutting failure behavior of metal foam sandwich plates is studied analytically, experimentally, and numerically.•An analytical model is proposed to describe the cutting failure behavior of foam core sandwich plates.•Experimental observations revealed three distinct failure modes in cutting of foam sandwich plates.•Analytical and numerical results agree well with experimental ones.•Tip angle of the wedge-shaped indenter has a great influence on the cutting load and energy absorption of the sandwich plate. During the ship, collisions with reefs or grounding may cause damage to the hull of ships made of sandwich plates. The cutting failure mechanism of sandwich panels is still not fully understood. In this paper, the failure behavior of metal foam sandwich plates under cutting load by a wedge-shaped indenter is studied through analytical, experimental, and numerical methods. An analytical model is proposed to describe the cutting failure behavior of foam core sandwich plates. Based on experimental results, three distinct failure modes of foam sandwich plates with varying thicknesses are observed. Numerical simulations are performed, and analytical and numerical results capture experimental results reasonably. The effects of core thickness, face-sheet thickness, and tip angle and cutting angle of wedge indenter on the failure mode, load-carrying capacity and energy absorption performance of the sandwich plates are explored. The present analytical model can effectively predict the cutting failure behavior of sandwich plates.