コークス微視構造のポアソン比がコークス強度に与える影響の均質化法による数値解析的検討

摘要

In this study, the effect of Poisson's ratio of microscopic structure on coke strength is numerically investigated using a homogenization method. In the analyses, microscopic structure of coke is composed of active components and pores. The stress analyses are carried out for cokes with different Poisson's ratio of microscopic structure and pore shapes in roundness. The analytical results are summarized as follows:rn1. The differences in Poisson's ratio hardly affect microscopic stress distributions.rn2. It is thought that the effect of Poisson's ratio on maximum stress is small.rn3. Homogenized elastic modulus increases with the rise in Poisson's ratio. However, the difference in homogenized elastic modulus becomes small with an increase in porosity.rn4. Considering porosity of coke is generally about 50 %, Poisson's ratio has little influence on coke rigidity.%国連の“気候変動に関する国際パネル”（IPCC）が2007年rnにまとめた報告によると，地球が温暖化しているのは“疑rn問の余地のないこと”であると報告されており，世界各地でrn地球温暖化防止のための炭酸ガス排出量規制について積極的rnな取り組みが求められている。