![]() ![]() In a second step, we applied a pressure of 16 kPa (corresponding to physiological end-systolic pressure amplitude of 120 mmHg) on the inner surface of the closed artery under two different situations. To overcome such effects we used an iterative displacement-driven procedure that brings together the free edges of the open coronary sample, starting from the open macroscopic stress-free state. This numerical closure FE computation often leads to bending instabilities. First, an FE simulation was conducted to reconstruct the closed artery from the known macroscopic stress-free geometry. ![]() The cross-sectional VPs were meshed with approximately 1500 quadrangular (eight-node) FEs. Static FE computations were performed under the assumptions of plane and finite strains using Ansys software (Ansys, Inc., Canonsburg, PA, USA). Jacques Ohayon, in Biomechanics of Coronary Atherosclerotic Plaque, 2021 4.1.2 Finite element computations
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