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2. School of Transportation, Wuhan University of Technology, Wuhan 430063, China;
3. State Key Laboratory of Nonlinear Mechanics; Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China, fund=null, authors=FU Qiang1 , LIU Fang2 , CHEN Cen3 , authorsList=FU Qiang, LIU Fang, CHEN Cen), CN=ArticleExt(id=1242131657214472395, articleId=1242131653187940522, tenantId=1146029695717560320, journalId=1146031591421210625, language=CN, title=应力空间和应变空间的后继屈服面演化, columnId=1146540929516700224, journalTitle=科技导报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=屈服面的位置和形状直接影响材料塑性应变的确定。考虑滑移是晶体的主要塑性变形机制,介绍了晶体塑性理论的推广——滑移构元模型,研究了应力空间和应变空间的后继屈服面演化。给出了确定应力空间和应变空间屈服面的数值计算方法,提出一种考虑屈服面畸变变形的混合硬化假设,可以描述应力空间和应变空间后继屈服面的移动和畸变变形。通过计算1100-O 铝在纯扭转和拉扭组合加载下(σ 11 -σ 12 )空间和(ε 11 -γ 12 )的后继屈服面演化,与已有实验结果吻合。研究结果表明,无论是在应力空间还是应变空间,后继屈服面“前凸后扁”的变形特征可基于滑移构元的潜在硬化和包氏效应来描述。, correspAuthors=null, authorNote=付强,博士,研究方向为材料的弹塑性损伤本构关系,电子信箱:fuhchiang@163.com, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=33JRva3ipr4Tdl5PEEEFjQ==, pdfFileSize=3399853, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=1. 中航空天发动机研究院有限公司, 北京 100028;
2. 武汉理工大学交通学院, 武汉 430063;
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科技导报
| 研究论文 2014, 32(7): 33-38
应力空间和应变空间的后继屈服面演化
全屏
付强1 , 刘芳2 , 陈岑3
作者信息
1. 中航空天发动机研究院有限公司, 北京 100028;
2. 武汉理工大学交通学院, 武汉 430063;
3. 中国科学院力学研究所, 非线性力学国家重点实验室, 北京 100190
Research on the Evolution of Subsequent Yield Surfaces in Stress Space and Strain Space
Affiliations
出版时间: 2014-03-08
doi: 10.3981/j.issn.1000-7857.2014.07.004
文章导航
屈服面的位置和形状直接影响材料塑性应变的确定。考虑滑移是晶体的主要塑性变形机制,介绍了晶体塑性理论的推广——滑移构元模型,研究了应力空间和应变空间的后继屈服面演化。给出了确定应力空间和应变空间屈服面的数值计算方法,提出一种考虑屈服面畸变变形的混合硬化假设,可以描述应力空间和应变空间后继屈服面的移动和畸变变形。通过计算1100-O 铝在纯扭转和拉扭组合加载下(σ 11 -σ 12 )空间和(ε 11 -γ 12 )的后继屈服面演化,与已有实验结果吻合。研究结果表明,无论是在应力空间还是应变空间,后继屈服面“前凸后扁”的变形特征可基于滑移构元的潜在硬化和包氏效应来描述。
滑移构元模型
/
应力空间
/
应变空间
/
后继屈服面演化
/
混合硬化
The shape and position of yield surface have a direct influence on the determination of plastic deformation of materials. Considering that slip is the main plastic deformation mechanism, the extension of single crystal plasticity called slip-component model is introduced, and the evolution of subsequent yield surfaces in stress space and strain space is investigated. The method to determine the yield surfaces in stress space and strain space is proposed. A combined kinematic-distortional hardening model is developed to describe the translation and distortion of subsequent yield surfaces in stress space and strain space. Numerical simulations of the evolution of subsequent yield surfaces in (σ 11 -σ 12 ) stress space and (ε 11 -γ 12 ) strain space are performed under pure torsion and combined tension- torsion loading for aluminum 1100- O. The results show that the agreement between the predictions and experiments is quite satisfactory. The work demonstrated that whether in stress space or strain space, based on the latent hardening and Bauschinger effect of the slip component, the subsequent yield surface can be described that the forward part inflates and the rear part deflates so that the subsequent yield surface has a sharp front and a blunt rear.
slip- component model
/
stress space
/
strain space
/
evolution of subsequent yield surfaces
/
combined kinematicdistortional hardening
付强, 刘芳, 陈岑.
应力空间和应变空间的后继屈服面演化.
科技导报,
2014
, 32
(7)
: 33
-38
.
DOI: 10.3981/j.issn.1000-7857.2014.07.004
FU Qiang, LIU Fang, CHEN Cen.
Research on the Evolution of Subsequent Yield Surfaces in Stress Space and Strain Space[J].
Science & Technology Review ,
2014
, 32
(7)
: 33
-38
.
DOI: 10.3981/j.issn.1000-7857.2014.07.004
2014年第32卷第7期
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文章信息
doi: 10.3981/j.issn.1000-7857.2014.07.004
接收时间:2013-07-22
首发时间:2014-03-26
出版时间:2014-03-08
收稿日期:2013-07-22
修回日期:2013-12-03
https://castjournals.cast.org.cn/joweb/kjdb/CN/10.3981/j.issn.1000-7857.2014.07.004
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2种不同金属材料的力学参数
科 Family 属数 Number of genus 种数 Number of species 占总种数比例 Percentage of total species (%) 属 Genus 种数 Number of species 占总种数比例 Percentage of total species (%) 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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