BRAKE DISCS STRUCTURES WITH THIN WALLED LATTICE PLATE: HOMOGENIZED AND MICROMECHANICS MODELLING APPROACH

摘要

#$%^&*AU2020100095A420200227.pdf#####ABSTRACT Periodic cellular structures, especially lattice designs, are potential to improve the cooling performance of a brake disk system. The method of two scales asymptotic homogenization was used to indicate the effective elastic stiffnesses of lattice plates structures, due to use in brake disc design. The arbitrary topology of lattice core cells connected to the back and front plates, which are made of generally orthotropic materials. This starts with the derivation of the general shell model with consideration of the set of unit cell problems and then making use of the model to determine the analytical equations and calculate the effective elastic properties of the lattice plate concerning the connected back and front plates. The analytical and numerical method allows determining the stiffness properties and the internal forces in the trusses and plates of the lattice, which are the relative importance of the design factors concerning to use in brake design.2/1 H2 H to Figure 3. Lattice beam with I-shaped periodicity cell 23 Surfaces iyz =(0,H) Surfaces 2 yso Figure 4. Rotated cellular core and specification of boundary conditions on surfaces y, 2and y3 (0, H)