Development of ideal solution and validation of stiffness and strength by finite element method for truss-wall corrugated cellular solids

作者：Choi Jeongho^*; Lee Junghwan; Lee Je Hyun

来源：Journal of Mechanical Science and Technology, 2014, 28(5): 1765-1778.

DOI：10.1007/s12206-014-0323-z

• Cellular solids
• Corrugation
• Open cell
• Honeycomb
• Periodic celluarmetals

The objective of this study is to find the density, stiffness, and strength of truss-wall unit cell models. The diamond-corrugation, triangular-corrugation, and Navtruss-corrugation models are used for the unit cell. The ideal solutions derived for these are based on solidwall unit cell models and are developed using the Gibson-Ashby theory. To verify the ideal solutions of the models, the density, strength, and stiffness are simulated using ABAQUS software and compared with the ideal solutions on a log-log scale. The material properties of stainless steel 304 are applied. The diameter is 0.5 mm; the opening width is 0.5 mm; and the corrugation angle is 45A degrees. Consequently, the relative Young's modulus and relative yield strength of the truss-wall unit models are good matches for the ideal expectations. It may be possible to apply a truss-wall model to diverse fields such as transportation or biomedical applications as one of the open-cell cellular solids.

• 出版日期2014-5