最新色国产精品精品视频,中文字幕日韩一区二区不卡,亚洲有码转帖,夜夜躁日日躁狠狠久久av,中国凸偷窥xxxx自由视频

+高級檢索
CuW合金的細觀累計損傷及裂紋演變模擬分析
DOI:
作者:
作者單位:

西安工程大學(xué)機電工程學(xué)院,西藏民族大學(xué),,西安工程大學(xué)

作者簡介:

通訊作者:

中圖分類號:

基金項目:

國家高技術(shù)研究發(fā)展計劃（863計劃）;創(chuàng)新研究群體科學(xué)基金


Simulation of meso-scale accumulated damage and induced crack behaviors of CuW alloy
Author:
Affiliation:

College of Mechanical and Electrical Engineering,Xi’an Polytechnic University,Xi’an,School of Education,Xizang Minzu University,Key Laboratory of Electrical Materials and Infiltration,Xi’an University of Technology,Xi’an,

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(tǒng)計
    • |
  • 參考文獻
    • |
  • 相似文獻
    • |
  • 引證文獻
    • |
  • 資源附件
    • |
  • 文章評論
    摘要:

    考慮到細觀累計損傷與微觀結(jié)構(gòu)的相互關(guān)系,對CuW合金的二維代表體單元施加循環(huán)載荷,應(yīng)用Darveaux模型分析了CuW合金的累計損傷以及所引起的裂紋演變。分析結(jié)果表明：塑性滑移帶首先形成于CuW合金的銅相區(qū),隨著循環(huán)次數(shù)的增加,細觀損傷及裂紋萌生于鎢顆粒的棱角處并沿著其邊緣擴展,微裂紋的擴展路徑主要受鎢顆粒的分布狀況影響,而燒結(jié)頸在一定程度上遲滯了微裂紋的擴展速度。

    Abstract:

    Considering of the relationship between meso-scale accumulated damage and microstructure, external cyclic strain load was applied on 2D representative volume element (RVE) of CuW alloys, and the accumulated damage and induced crack behaviors of CuW alloy were stimulated utilizing Darveaux model. The results show that the plastic slip bands appear on the copper phase at the beginning, damage and induced cracks of CuW alloy initiate at the corners and then propagate along and edges of tungsten grains with the increase of cyclic number, the propagation path of micro-cracks is affected by the distribution of tungsten grains mainly, while the sintering necks lower the propagation speed of micro-cracks on some extents.

    參考文獻
    相似文獻
    引證文獻
引用本文

王彥龍,王寶娥,梁淑華,付翀. CuW合金的細觀累計損傷及裂紋演變模擬分析[J].稀有金屬材料與工程,2017,46(6):1469~1473.[Yanlong Wang, Baoe Wang, Shuhua Liang, Fu Chong. Simulation of meso-scale accumulated damage and induced crack behaviors of CuW alloy[J]. Rare Metal Materials and Engineering,2017,46(6):1469~1473.]
DOI：[doi]

復(fù)制
文章指標(biāo)
  • 點擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2016-08-01
  • 最后修改日期:2016-10-04
  • 錄用日期:2016-12-07
  • 在線發(fā)布日期: 2017-11-07
  • 出版日期: