Further documentation is available here. Developed a new computational design method to apply topology optimization to search the best topological layout for lattice structures with enhanced shear stiffness. A topological uniform structures page pdf optimal algorithm is proposed to evolve the microstructure of lattice materials with distinct topological boundaries.
An equivalent analytical solution for the transverse shear stiffness is proposed according to the simplified optimal results. Provide a new systematic analysis method to design periodic lattice structures with higher shear resistance and better load bearing abilities. To improve the poor shear performance of periodic lattice structure consisting of hexagonal unit cells, this study develops a new computational design method to apply topology optimization to search the best topological layout for lattice structures with enhanced shear stiffness. The design optimization problem of micro-cellular material is formulated based on the properties of macrostructure to maximize the shear modulus under a prescribed volume constraint using the energy-based homogenization method. The aim is to determine the optimal distribution of material phase within the periodic unit cell of lattice structure. The proposed energy-based homogenization procedure utilizes the sensitivity filter technique, especially, a modified optimal algorithm is proposed to evolve the microstructure of lattice materials with distinct topological boundaries.
A high shear stiffness structure is obtained by solving the optimization model. It demonstrates the effectiveness of the proposed method in this paper. Finally, the structure is manufactured, and then the properties are tested. Results show that the shear stiffness and bearing properties of the optimized lattice structure is better than that of the traditional honeycomb sandwich structure. In general, the proposed method can be effectively applied to the design of periodic lattice structures with high shear resistance and super bearing property. Check if you have access through your login credentials or your institution. This article is about the branch of mathematics.
Problem and Polyhedron Formula are arguably the field’s first theorems. 19th century, although it was not until the first decades of the 20th century that the idea of a topological space was developed. By the middle of the 20th century, topology had become a major branch of mathematics. Topology, as a well-defined mathematical discipline, originates in the early part of the twentieth century, but some isolated results can be traced back several centuries.
Some authorities regard this analysis as the first theorem, signalling the birth of topology. German, in 1847, having used the word for ten years in correspondence before its first appearance in print. A metric space is now considered a special case of a general topological space, with any given topological space potentially giving rise to many distinct metric spaces. Georg Cantor in the later part of the 19th century. Topological spaces show up naturally in almost every branch of mathematics.