@article{oai:sucra.repo.nii.ac.jp:00012617,
 author = {鈴木, 章彦 and 馬場, 秀成 and 武正, 文夫},
 issue = {713},
 journal = {日本機械学會論文集. A編},
 month = {},
 note = {Porous ceramics have nonlinear stress-strain behavior and are expected to have damage tolerance capability. To assess the nonlinear behavior, we have proposed distributed-micro-crack model. In this paper, some assessment results with the distributed-micro-crack model for porous ceramics are presented. The effects of R-curve behavior and stress concentration are included in the assessment. Constitutive equation of distributed-micro-crack model has been expanded from uniaxial stress model to multiaxial stress model to consider the stress concentration. It was found that our proposed model can simulate the nonlinear stress-strain relationship of porous ceramics for various loading condition such as 3-point bending, 4-point bending with smooth specimen and 4-point bending with notched specimen etc. These simulations also show that 3-point bending test is suitable for assessing nonlinear stress-strain behavior than 4-point bending because 3-point bending can localize the nonlinear stress-strain behavior region which is easily measured by strain gage., text, application/pdf},
 pages = {55--61},
 title = {微視クラック分散モデルによる多孔質セラミックスの応力-ひずみ非線形挙動解析},
 volume = {72},
 year = {2006},
 yomi = {スズキ, アキヒコ and ババ, ヒデナリ and タケマサ, フミオ}
}