| 查看: 1086 | 回复: 10 | |||
| 当前主题已经存档。 | |||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | |||
[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
302求调剂一志愿华中师范大学
已经有4人回复
-
288求调剂 一志愿哈工大 材料与化工
已经有32人回复
-
一志愿郑大材料工程290求调剂
已经有20人回复
-
环境工程297分求调剂一志愿杭高院
已经有12人回复
-
366求调剂一志愿东北大学
已经有7人回复
-
材料调剂
已经有6人回复
-
一志愿北京科技大学085601材料工程英一数二初试总分335求调剂
已经有9人回复
-
材料调剂
已经有5人回复
-
材料与化工306分找调剂
已经有5人回复
-
301求调剂
已经有5人回复
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
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
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
