Compression Behavior of Extra-soft Porcine Lung Tissue at the Wide Strain Rate

Abstract Lung is the respiratory organ and important hematopoietic of human body, which easily damaged under impact load. Therefore, studying mechanical behavior lung load an way to understand its damage mechanism it. Compression experiments porcine tissue at a wide strain rate (0.001-3000 s −1 ) were carried out room temperature. The modifications made for highly accurate measurement due low wave impedance. results show that behaviors consist three stages, linear elasticity, plateau stage, compaction. presents distinct rate-dependence in compaction stage. Furthermore, it behaves nearly similarly both loading directions vertical parallel trachea, facilitates demonstration isotropy.