翻訳と辞書 Words near each other ・ Frahier-et-Chatebier ・ Frahm ・ Fraiburgo ・ Fraidy Cat ・ Fragile Allegiance ・ Fragile base class ・ Fragile binary interface problem ・ Fragile Bird ・ Fragile Equality ・ Fragile Eternity ・ Fragile Families and Child Wellbeing Study ・ Fragile Figures ・ Fragile Future ・ Fragile Heart ・ Fragile Machine ・ Fragile matter ・ Fragile mental retardation 2 ・ Fragile Records ・ Fragile state ・ Fragile States Index ・ Fragile Tension / Hole to Feed ・ Fragile Things ・ Fragile Tour ・ Fragile Vastness ・ Fragile X syndrome ・ Fragile X-associated tremor/ataxia syndrome ・ Fragile/Jirenma ・ Fragilis ・ Fragility ・ Fragility (disambiguation) Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Fragile matter ： ウィキペディア英語版 Fragile matter In materials science, fragile matter is a granular material that is jammed solid. Everyday examples include beans getting stuck in a hopper in a whole food shop, or milk powder getting jammed in an upside-down bottle. The term was coined by physicist Michael Cates, who asserts that such circumstances warrant a new class of materials. The jamming thus described can be unjammed by mechanical means, such as tapping or shaking the container, or poking it with a stick. Cates proposed that such jammed systems differ from ordinary solids in that if the direction of the applied stress changes, the jam will break up. Sometimes the change of direction required is very small. Perhaps the simplest example is a pile of sand, which is solid in the sense that the pile sustains its shape despite the force of gravity. Slight tilting or vibration is enough to enable the grains to shift, collapsing the pile. Not all jammed systems are fragile, i.e. foam. Shaving foam is jammed because the bubbles are tightly packed together under the isotropic stress imposed by atmospheric pressure. If it were a fragile solid, it would respond plastically to shear stress, however small. But because bubbles deform, foam actually responds elastically provided that the stress is below a threshold value. Fragile matter is also not to be confused with cases in which the particles have adhered to one another ("caking"). ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Fragile matter」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.