Tohoku University · 공학
이 교수의 연구실은 다스케일 기반의 복합재료 및 이질성 구조물의 기계적 거동을 정량적으로 분석하기 위한 수치 해석 기법을 핵심으로 합니다. 특히, 균질화 방법(Homogenization Method), 유한요소법, 물질점법(MPM) 및 유한커버법(FCM)을 접목하여 비선형 거동, 영구변형, 손상 메커니즘을 고려한 정밀한 다스케일 해석 기법을 개발하고 있습니다. 연구는 주로 섬유강화플라스틱(FRP)과 같은 복합재료의 거시적 거동을 미세구조의 물성 특성으로부터 유도하는 데 초점을 맞추고 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
Abstract In this paper, we propose a checkerboard‐free topology optimization method without introducing any additional constraint parameter. This aim is accomplished by the introduction of finite element approximation for continuous material distribution in a fixed design domain. That is, the continuous distribution of microstructures, or equivalently design variables, is realized in the whole design domain in the context of the homogenization design method (HDM), by the discretization with fini
Abstract We introduce the finite cover method (FCM) as a generalization of the finite element method (FEM) and extend it to analyse the linear and non‐linear mechanical behaviour of heterogeneous solids and structures. The name ‘FCM’ is actually an alias for the manifold method (MM) and the basic idea of the method has already been established for linear analyses of structures with homogeneous materials. After reviewing the concept of physical and mathematical covers for approximating functions
Abstract The homogenization method applied to nonlinear problems is discussed from practical point view. The conventional procedure of the asymptotic homogenization method for linear elasticity problems is directly extended to nonlinear problems by using rate formulation of the updated Lagrangian scheme. Analysis is made for a composite material whose constituents reveal elastoplasticity character as well as finite deformation in which a local periodicity can be assumed. The updating scheme also
