書誌事項
- タイトル別名
-
- Pores Distribution Effects Evaluation for Mechanical Properties of Porous Polyurethane/Alumina Composite Considered Percolation Theory
説明
<p>This research aims at revealing relationships between pores size distribution in porous components with its mechanical properties applying critical porosity by percolation theory. The surgery of artificial hip joints has been persistently increasing due to super-aging society. However, the service lives of the artificial hip joints are unexpectedly limited by loosening, and the extents of loosening highly depends on mechanical property of embedded natural bones. This proposed optimization method is to seek for higher strength of porous components with maintaining its light weight. Compression test of porous polyurethane/alumina composite (simulated bone) showed a critical porosity of approximately 50 % in both yield strength and Young’s modulus. FEM simulations suggested a compatible critical porosity in stress concentration factors which suggest higher stress. The difference in estimated critical porosities can be attributed to stability of deformation in FEM simulations. A framework of determining optimal pores distribution considering interaction of stress concentration is discussed, and optimization method is then considered.</p>
収録刊行物
-
- 北陸信越支部総会・講演会 講演論文集
-
北陸信越支部総会・講演会 講演論文集 2021.58 (0), E034-, 2021
一般社団法人 日本機械学会
- Tweet
キーワード
詳細情報 詳細情報について
-
- CRID
- 1390852482513811328
-
- NII論文ID
- 130008092440
-
- ISSN
- 24242772
-
- 本文言語コード
- ja
-
- データソース種別
-
- JaLC
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可