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Article Abstract
High cost of clinical trials hinders further enhancement of comprehensive mechanical properties of bioresorbable scaffolds (BRS). Therefore, a multi-objective optimization method combining surrogate modeling and finite element simulation is proposed, based on the evaluation of stents with various auxetic structures and materials. The results demonstrated that re-entrant hexagon stent made of PLA (PLA-RH stent) was a more ideal candidate, with superior radial recoil and force. Following optimization, PLA-RH stent decreased bending stiffness by 60.12%, without compromising radial performances. This method enables more precise and efficient optimization and the proposed auxetic structure introduces innovative concepts for future design of stents.
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| http://dx.doi.org/10.1080/10255842.2025.2556003 | DOI Listing |
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