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フルテキストURLKJ00004351020.pdf ( 1.3MB ) 公開日 2010-04-19
タイトルA relationship between brittle fracture strength and the nucleation point in a fractured surface
作成者Takimoto, Akio
Kawamoto, Takao
Kouhashi, Yoshio
作成者ヨミタキモト, アキオ
カワモト, タカオ
コウハシ, ヨシオ
作成者別表記瀧本, 昭夫
作成者所属山口大学工学部
内容記述(抄録等)Fracture strength referred particularly to the eccentric initiation in a fractured surface has been investigated in employing a brittle plastic sheet and FCD-50 cast iron. Micro-faults like a craze and inclusion particles play a role of a nucleus in the homogeneous plastics. Micro-bubbles introduced purposely into the plastics control the fracture initiation sites in the nonhomogeneous material. Nodular graphite particles in FCD-50 are the inevitable fracture nucleation sources. A ferrous sphere of 0.7 or 2.0mm dia. or a glass sphere of 0.5 or 2.0mm dia. artificially introduced into the plastics also controls a fracture initiation site. All such nucleation points in fractured surfaces have been analyzed by a plane eccentricity and by a relative distance to the free boundary proposed herewith. Fracture strength is shown to be functions of these. Discussion is made on these including the basic and the current knowledge on the stress concentration factor on an off site second phase and the stress distributions around a spherical solid in the continuum and the interfacial bonding condition between a second spherical phase and the matrix.
本文言語eng
主題工学
資料タイプtext
ファイル形式application/pdf
出版者山口大学工学部
出版者ヨミヤマグチ ダイガク コウガクブ
NII資料タイプ紀要論文
ISSN0386-3433
NCIDAA0086073X
学内刊行物(紀要等)Technology reports of the Yamaguchi University
掲載誌名Technology reports of the Yamaguchi University
2
5
開始ページ499
終了ページ511
発行日1981-12
著者版/出版社版出版社版
備考本文データは国立情報学研究所において電子化したものである
リポジトリIDKJ00004351020
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/KJ00004351020