Finite element analysis of 3D printed structures using homogenization and model reduction method

Abstract

In this thesis, we propose an effective way to analyze 3D printed structures. The 3D printed structure has an internal structure characterized by infills, so it behaves differently from a structure full of interior. If all of these are modeled, the computational time will increase dramatically. Therefore, this research attempts to reduce the computational time by effectively reducing the degree of freedom while reducing the difficulty of modeling using the model reduction method and homogenization method without modeling all detailed 3D printed structures. The model reduction method, which is proposed as an element that can reflect repeated structures, is used to reduce computational time compared to the previous method. It is expected that this research would be used to verify the possibility and accuracy of this research through numerical examples and to use not only 3D printed structures but also structures with grids and structures with repeated structures.