Abstracts

This study developed a 3D computational model to analyze large and nonlinear deformations of skin, fat, and muscle in response to suction pressure, using hyperelastic constitutive relations like Mooney-Rivlin and Ogden. The model was validated against experimental data, showing that dome apex height increased with pressure, with maximum deformed heights of 9.3 mm and 12.01 mm for 4 and 8 inHg, respectively. The model effectively captured skin deformation and revealed stress concentration at the load boundary, with maximum stress in the skin. The findings provide insights into tissue biomechanics and aid in the development of medical devices, allowing for modifications in load applicator geometries for patient care applications.