期刊
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
卷 74, 期 -, 页码 133-142出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijmecsci.2013.05.007
关键词
Material constitutive; Fracture; Damage; Plane strain; Metal cutting; Triaxiality
资金
- Libyan National Higher Education Ministry within the Libyan-North American Scholarship program
This paper focuses on material constitutive models for plane strain applications such as orthogonal cutting. It presents a novel approach to determine the material model parameters which utilizes a new, adjustable stress state specimen, Digital Image Correlation (DIC) measurements, and an inverse method for parameter identification. The proposed double-notched specimen is purposely designed to allow the identification of damage and fracture parameters for the plane strain condition. The corresponding equivalent plastic strains at different stages of deformation and damage were calculated from DIC measurements. The elastic modulus and yield surface were obtained using a numerical optimization based inverse method. Ultimately, the fracture locus was obtained and the parameters in the Rice and the reduced form of the Johnson Cook (JC) damage models were identified. The model validation is also provided. (C) 2013 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据