| 摘要 |
<p>PROBLEM TO BE SOLVED: To relax stress of internal cells while relaxing stress in an outer peripheral part of a cell structure.SOLUTION: A cell structure includes: an outer peripheral wall part that is formed in a cylindrical shape and has an external slit; a plurality of internal cells that are formed in the outer peripheral wall part and serve as tubular passages that permit passage of a fluid; and a brace-shaped reinforcement part disposed on the internal cell located on a line connecting a tubular middle part of the outer peripheral wall part and the external slit. Stress generated in the internal cells is reduced to suppress occurrence of cracks by disposing the reinforcement part on the internal cell disposed at a position on which a high tensile stress acts.</p> |
