Finite Element Analysis of the Lattice Support Structures of 3D Printed Orthotic Insoles
3D printing technology can customize the orthotic insole,while the topological lattice structure supporting the insole can be explored for optimization using finite element analysis.A structural model was established based on two conventional lattice support structures,face-centered cubic(FCC)and body-centered cubic(BCC).This paper analyzed and searched for the optimal topology,deepened the construction of the composite structural model of FCC and BCC,and studied the effects of structural factors and lattice profiles on the corrective support performance.Simulation results show that under the same stress conditions,the FCC lattice structure has the higher support strength and the larger compressive force under the same deformation.For the composite structure composed of FCC and BCC,the values of the finite element analysis parameters increase with the decrease of the proportion of the FCC structure in the composite model,and the value of the stress increases by about 1.03 times for each 25％decrease of the FCC proportion.The simulation results prove that the FCC structure has theoretical and practical consistency in supporting the orthotic insole and can form a good plantar pressure distribution.
3D printinglattice structureorthotic insolesfinite element analysisplantar pressure
万方数据
维普
