翻訳と辞書 Words near each other ・ Strain (surname) ・ Strain 121 ・ Strain and counterstrain ・ Strain crystallization ・ Strain energy ・ Strain energy density function ・ Strain energy release rate ・ Strain engineering ・ Strain gauge ・ Strain hardening exponent ・ Strain insulator ・ Strain partitioning ・ Strain rate ・ Strain rate imaging ・ Strain rate tensor ・ Strain scanning ・ Strain theory ・ Strain theory (sociology) ・ Strain wave gearing ・ Strain, Arkansas ・ Strained quantum-well laser ・ Strained Relations ・ Strained silicon ・ Strained silicon directly on insulator ・ Strained tendon ・ Strained yogurt ・ Strainer bar ・ Strainmeter ・ Strain–encoded magnetic resonance imaging ・ Strait 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 Strain scanning ： ウィキペディア英語版 Strain scanning In physics, strain scanning is the general name for various techniques that aim to measure the strain in a crystalline material through its effect on the diffraction of X-rays and neutrons. In these methods the material itself is used as a form of strain gauge. The various methods are derived from powder diffraction but look for the small shifts in the diffraction spectrum that indicate a change a lattice parameter instead of trying to derive unknown structural information. By comparing the lattice parameter to a known reference value it is possible to determine the. If sufficient measurements are made in different directions it is possible to derive the strain tensor. If the elastic properties of the material are known, one can then compute the stress tensor. ==Principles== At its most basic level strain scanning uses shifts in Bragg diffraction peaks to determine the strain. Strain is defined as the change in length (shift in lattice parameter, d) divided by the original length (unstrained lattice parameter, d0). In diffraction based strain scanning this becomes the change in peak position divided by the original position. The precise equation is presented in terms of diffraction angle, energy, or - for relatively slow moving neutrons - time of flight: :$\backslash epsilon\; =\; \backslash frac\; =\; \backslash frac\; =\; \backslash frac\; =\; \backslash frac\; \backslash ,$ 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「Strain scanning」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.