Calculation of strain gradient in flow formulation using strain surface function and its applications to micro rolling
- Authors
- Byon, S. M.; Lee, Y.
- Issue Date
- Oct-2007
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- strain components; flow formulation; finite element analysis; strain gradient plasticity; micro rolling
- Citation
- JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, v.192, pp 218 - 224
- Pages
- 7
- Journal Title
- JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
- Volume
- 192
- Start Page
- 218
- End Page
- 224
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/53260
- DOI
- 10.1016/j.jmatprotec.2007.04.070
- ISSN
- 0924-0136
- Abstract
- Using flow formulation-based finite element analysis, we compute the strain components of material of copper during micro rolling that material size in thickness is 1.25-12.5 mu m. To examine whether the computed strain component is the component of Cartesian tensor, we also calculate the strain components using deformation kinematics of each element and we compare the results obtained from both methods. To illustrate application capability of the proposed method, we link the strain gradient plasticity theory with flow formulation-based finite element analysis. We set up a least square function composed of strain components and compute its derivatives and finally obtain information of strain gradient distribution in the material during rolling. It shows when the material thickness is less than the intrinsic material length, its deformation behavior is quite different compared with that computed from the conventional plasticity theory. (c) 2007 Elsevier B.V. All rights reserved.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > School of Mechanical Engineering > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/53260)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.