| 查看: 1047 | 回复: 10 | |||
| 当前主题已经存档。 | |||
[交流]
【资源】最新nature material 关于非晶形变的论文
|
|||
|
理论工作相当的漂亮 [ Last edited by hslining on 2009-9-12 at 08:54 ] |
回复此楼» 猜你喜欢
情人节自我反思：在爱情中有过遗憾吗？
已经有10人回复
-
今年春晚有几个节目很不错，点赞！
已经有7人回复
-
基金正文30页指的是报告正文还是整个申请书
已经有5人回复
-
过年走亲戚时感受到了所开私家车的鄙视链
已经有5人回复
hslining
木虫 (正式写手)
- 应助: 0 (幼儿园)
- 贵宾: 0.805
- 金币: 3647.7
- 散金: 346
- 红花: 1
- 帖子: 797
- 在线: 53.9小时
- 虫号: 473457
- 注册: 2007-12-05
- 专业: 金属材料的制备科学与跨学
Abstract
★
小木虫(金币+0.5):给个红包，谢谢回帖交流
小木虫(金币+0.5):给个红包，谢谢回帖交流
| The fracture mechanism of amorphous materials, which are of crucial importance in various fields of engineering, remains a long-standing fundamental problem of science despite intensive efforts over the years. On the basis of a novel rheological model of fracture, we demonstrate that nonlinear behaviour associated with fracture is a consequence of the coupling between density fluctuations and deformation fields: shear-induced enhancement of density fluctuations is self-amplified by the resulting enhancement of dynamic and elastic asymmetry between denser and less-dense regions. This positive feedback may be the origin of fracture. We propose novel criteria for the onset of mechanical instability, extending from ductile to brittle fracture. Their validity is checked by comparing them with numerical solutions of our model and existing experimental results of metallic and polymeric glass formers. The criteria enable us to predict and design fracture behaviour of materials from the pressure dependence of their viscoelastic properties. |
2楼2009-06-15 22:47:55
mqjiang
木虫 (著名写手)
Amorphous Solids
- 应助: 12 (小学生)
- 金币: 4702.5
- 散金: 662
- 红花: 5
- 帖子: 1265
- 在线: 192.8小时
- 虫号: 681623
- 注册: 2008-12-25
- 性别: GG
- 专业: 固体力学
3楼2009-06-16 08:41:11
imrsfb
铁杆木虫 (著名写手)
- MM-EPI: 7
- 应助: 12 (小学生)
- 贵宾: 1.17
- 金币: 8101.6
- 散金: 2541
- 红花: 45
- 沙发: 3
- 帖子: 2477
- 在线: 580.6小时
- 虫号: 472279
- 注册: 2007-12-04
- 性别: GG
- 专业: 金属结构材料
★
小木虫(金币+0.5):给个红包，谢谢回帖交流
小木虫(金币+0.5):给个红包，谢谢回帖交流
|
俺来给个链接： Nature Materials Published online: 14 June 2009 | doi:10.1038/nmat2468 Inhomogeneous flow and fracture of glassy materials Akira Furukawa1 & Hajime Tanaka1 http://www.nature.com/nmat/journ ... /full/nmat2468.html |
4楼2009-06-16 14:20:40
5楼2009-06-16 15:22:38
  |
6楼2009-06-18 09:40:18
doctall23 
木虫 (著名写手)
- 应助: 1 (幼儿园)
- 金币: 2874.3
- 散金: 100
- 帖子: 1316
- 在线: 153.8小时
- 虫号: 378150
- 注册: 2007-05-21
- 性别: GG
- 专业: 金属材料的合金相、相变及
7楼2009-11-19 01:19:47
ppgoogle
铁杆木虫 (正式写手)
- 应助: 7 (幼儿园)
- 金币: 5083.5
- 红花: 3
- 帖子: 404
- 在线: 98.1小时
- 虫号: 881010
- 注册: 2009-10-22
- 性别: GG
- 专业: 金属非晶态、准晶和纳米晶
8楼2009-12-26 14:38:19
9楼2010-02-22 22:50:00
doctall23
木虫 (著名写手)
- 应助: 1 (幼儿园)
- 金币: 2874.3
- 散金: 100
- 帖子: 1316
- 在线: 153.8小时
- 虫号: 378150
- 注册: 2007-05-21
- 性别: GG
- 专业: 金属材料的合金相、相变及
10楼2010-02-28 10:49:58