Drop-Impact Analysis of Liquid-Containing Beer Bottles by Finite Element Method

In order to improve the impact resistance of glass containers, this study utilized the finite element method to investigate the mechanical properties of liquid-containing glass beer with different drop mode. The results show that stress within the beer bottle is primarily concentrated at the bottle-ground contact point throughout the drop, creating a fracture once the stress surpasses the critical threshold. As the fracture forms, the stress continues to increase until it reaches its maximum, after which it progressively disperses throughout the entire bottle body. From research data, it was found that when θ is 30°, its maximum stress is 283.703 MPa, while θ are 0° and 90°, the stresses are 184.987 MPa and 116.583 MPa, respectively. Therefore, inclined drops generate greater stress impact onto the bottle, making it more vulnerable to damage compared to fully vertical / horizontal drops. Regardless of the drop mode, the point of maximum stress is always situated at the bottle-ground contact point, whereas the magnitude of maximum stress at the moment of fracture is not directly proportional to the different drop modes.