Mechanical Behavior of Coronary Stent for Flexibility of Ring Made of Magnesium Alloy AZ31 using Finite Element Method (FEM)

Cases of death caused by cardiovascular disease are commonly coronary heart disease. The most well-known way to treat it is installing a stent. Several studies related the development stents have been done. Continues in materials used, one which biodegradable so that stent will dissolve body over time. In addition, when installed, should be able adjust its shape blood vessel and minimum tension not injure wall. This study investigated bare metal with magnesium alloy AZ31 material using strut mirror design (S><). used two conditions, namely crimped expanded stent, obtain changes angle maximum stress on bending moment simulated. test simulates finite element method (FEM) Abaqus 6.14 software. results showed get highest flexibility best von Mises safety limit 0.011 N.mm 50 μm thickness, curvature index 0.0519 mm.