Finite element method simulating bursting process of multi-chamber flexible package infusion bag

• Published in: Sheng wu yi xue gong cheng xue za zhi Vol. 38; no. 3; p. 556
• Main Authors: Yue, Huaijun, Wang, Guanshi, Jiang, Wentao, Tan, Hongbo, Liu, Wenjun, Zhu, Zhongqiang, Zhu, Lin
• Format: Journal Article
• Language: Chinese
• Published: China Sichuan Society for Biomedical Engineering 25.06.2021
• Subjects: Adhesion tests; Boundary conditions; Burst tests; Bursting strength; Chambers; Computer simulation; Configurations; Eccentric loads; Finite Element Analysis; Finite element method; Load distribution; Mathematical models; Numerical models; Optimization; Peeling; Software; Stress; Stress concentration; Stress distribution; Stress, Mechanical; multi chamber infusion bag; strength of weak welding; finite element method; fluid cavity
• ISSN: 1001-5515
• DOI: 10.7507/1001-5515.202005062

This study aims to overcome the shortcomings such as low efficiency, high cost and difficult to carry out multi-parameter research, which limited the optimization of infusion bag configuration and manufacture technique by experiment method. We put forward a fluid cavity based finite element method, and it could be used to simulate the stress distribution and deformation process of infusion bag under external load. In this paper, numerical models of infusion bag with different sizes was built, and the fluid-solid coupling deformation process was calculated using the fluid cavity method in software ABAQUS subject to the same boundary conditions with the burst test. The peeling strength which was obtained from the peeling adhesion test was used as failure criterion. The calculated resultant force which makes the computed peeling stress reach the peeling strength was compared with experiment data, and the stress distribution was analyzed compared with the rupture process of burst test. The results showed that con