Recently, the well-known independent research institute, the Netherlands Applied Scientific Research Organization (TNO), is developing material design with the simulation software COMSOL Multiphysics, and strives to optimize 3D printing products through internal structure. It is understood that the development of material design and multi-material 3D printing technology is accelerating in the recent period. Researchers are applying additive manufacturing to the microscopic field and through internal design to maximize flexibility and 3D printing objects. Various other attributes. As for TNO researchers, they have been using multi-scale modeling and multi-physics simulation to test and explore material designs for 3D printing through virtual means. 
The key to this is the COMSOL Multiphysics software, which is indispensable in research and development. It can be used for a variety of physical or engineering purposes and enables virtual simulations based on physics problems. According to Tiangong, TNO's research team has been using Multiphysics to design and test various structural properties of a single unit cell, the smallest structural unit that makes up the lattice. According to the COMSOL website, “The R&D team first designed a single cell and set its stiffness to twice the other direction in one direction, and then analyzed the behavior of the material in a given geometry.†Using COMSOL With Multiphysics software, the TNO team was able to simulate the behavior of the number of stresses that had been applied to the structure to "adapt to the stiffness matrix they needed."
In addition, NTO researchers have been simulating and designing materials with different dissimilarities, that is, the materials have different characteristics when measured in different directions, and combined with the microstructure of multiple materials. Control its material properties, such as thermal conductivity.
TNO also focuses on the use of multi-scale modeling to optimize material considerations on a larger scale, thereby simulating its microstructure for actual size 3D printing products. In addition, they have been working to convert virtual material designs into 3D printed objects by changing various densities, such as the structure of the 3D printed hammer handle shown below. As described on the COMSOL blog: “The design is composed of different types of unit cells on a microscopic scale and is optimized to achieve the proper stiffness and minimum material requirements.â€
The Netherlands Organization for Applied Scientific Research (TNO) is a large-scale integrated technology research and development organization with 14 research institutes and thousands of researchers, mainly relying on government and enterprises to commission technology development. Earn income.
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