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A concise review about fracture assessments of brittle solids with V-notches
Hsien-Yang YEH, Bin YANG
《结构与土木工程前沿(英文)》 2019年 第13卷 第2期 页码 478-485 doi: 10.1007/s11709-019-0520-z
A concise review of recent studies about the fracture assessments of elastic brittle solid materials containing V-notches is presented. In this preliminary and brief survey, elastic stress distributions in V-notched solids are discussed first. The concept of notch stress intensity factor is introduced. Combine the digital image correlation method with numerical computation techniques to analyze the stress distribution near the notches. Fracture criteria such as strain energy density, J-integral, theory of critical distance are used.
A review on ductile mode cutting of brittle materials
Elijah Kwabena ANTWI, Kui LIU, Hao WANG
《机械工程前沿(英文)》 2018年 第13卷 第2期 页码 251-263 doi: 10.1007/s11465-018-0504-z
Brittle materials have been widely employed for industrial applications due to their excellent mecha-nical, optical, physical and chemical properties. But obtaining smooth and damage-free surface on brittle materials by traditional machining methods like grinding, lapping and polishing is very costly and extremely time consuming. Ductile mode cutting is a very promising way to achieve high quality and crack-free surfaces of brittle materials. Thus the study of ductile mode cutting of brittle materials has been attracting more and more efforts. This paper provides an overview of ductile mode cutting of brittle materials including ductile nature and plasticity of brittle materials, cutting mechanism, cutting characteristics, molecular dynamic simulation, critical undeformed chip thickness, brittle-ductile transition, subsurface damage, as well as a detailed discussion of ductile mode cutting enhancement. It is believed that ductile mode cutting of brittle materials could be achieved when both crack-free and no subsurface damage are obtained simultaneously.
关键词: ductile mode cutting brittle materials critical undeformed chip thickness brittle-ductile transition subsurface damage molecular dynamic simulation
A FEniCS implementation of the phase field method for quasi-static brittle fracture
HIRSHIKESH, Sundararajan NATARAJAN, Ratna Kumar ANNABATTULA
《结构与土木工程前沿(英文)》 2019年 第13卷 第2期 页码 380-396 doi: 10.1007/s11709-018-0471-9
关键词: phase field method FEniCS brittle fracture crack propagation variational theory of fracture
Advances in molecular dynamics simulation of ultra-precision machining of hard and brittle materials
Xiaoguang GUO,Qiang LI,Tao LIU,Renke KANG,Zhuji JIN,Dongming GUO
《机械工程前沿(英文)》 2017年 第12卷 第1期 页码 89-98 doi: 10.1007/s11465-017-0412-7
Hard and brittle materials, such as silicon, SiC, and optical glasses, are widely used in aerospace, military, integrated circuit, and other fields because of their excellent physical and chemical properties. However, these materials display poor machinability because of their hard and brittle properties. Damages such as surface micro-crack and subsurface damage often occur during machining of hard and brittle materials. Ultra-precision machining is widely used in processing hard and brittle materials to obtain nanoscale machining quality. However, the theoretical mechanism underlying this method remains unclear. This paper provides a review of present research on the molecular dynamics simulation of ultra-precision machining of hard and brittle materials. The future trends in this field are also discussed.
关键词: MD simulation ultra-precision machining hard and brittle materials machining mechanism review
Research progress on ultra-precision machining technologies for soft-brittle crystal materials
Hang GAO,Xu WANG,Dongming GUO,Yuchuan CHEN
《机械工程前沿(英文)》 2017年 第12卷 第1期 页码 77-88 doi: 10.1007/s11465-017-0411-8
Soft-brittle crystal materials are widely used in many fields, especially optics and microelectronics. However, these materials are difficult to machine through traditional machining methods because of their brittle, soft, and anisotropic nature. In this article, the characteristics and machining difficulties of soft-brittle and crystals are presented. Moreover, the latest research progress of novel machining technologies and their applications for soft-brittle crystals are introduced by using some representative materials (e.g., potassium dihydrogen phosphate (KDP), cadmium zinc telluride (CZT)) as examples. This article reviews the research progress of soft-brittle crystals processing.
关键词: brittle soft functional crystal ultra-precision machining
Weihong Zhang, Dan Wang, Jie-Xin Wang, Yuan Pu, Jian-Feng Chen
《化学科学与工程前沿(英文)》 2020年 第14卷 第6期 页码 1087-1099 doi: 10.1007/s11705-019-1895-z
Modeling of solids segregation in circulating fluidized bed boilers
Xuan YAO, Tao WANG, Jia ZHAO, Hairui YANG, Hai ZHANG
《能源前沿(英文)》 2011年 第5卷 第1期 页码 115-119 doi: 10.1007/s11708-010-0103-0
关键词: segregation model terminal velocity circulating fluidized bed (CFB)
Implementation aspects of a phase-field approach for brittle fracture
G. D. HUYNH, X. ZHUANG, H. NGUYEN-XUAN
《结构与土木工程前沿(英文)》 2019年 第13卷 第2期 页码 417-428 doi: 10.1007/s11709-018-0477-3
Impact of solids on biphasic biodegradation of phenanthrene in the presence of hydroxypropyl- β
Zhenyi ZHANG, Chihiro INOUE, Guanghe LI,
《环境科学与工程前沿(英文)》 2010年 第4卷 第3期 页码 329-333 doi: 10.1007/s11783-010-0232-z
关键词: biphasic biodegradation hydroxypropyl-β -cyclodextrin (HPCD) polycyclic aromatic hydrocarbons (PAHs)
LU Chunxi, LI Ruxin, SHI Mingxian, LIU Xiancheng
《化学科学与工程前沿(英文)》 2008年 第2卷 第4期 页码 462-467 doi: 10.1007/s11705-008-0068-2
关键词: catalytic cracking separation efficiency tangential velocity agreement magnitude
6G移动网络架构SOLIDS——驱动力、特征及功能拓扑 Review
刘光毅, 李娜, 邓娟, 王莹莹, 孙军帅, 黄宇红
《工程(英文)》 2022年 第8卷 第1期 页码 42-59 doi: 10.1016/j.eng.2021.07.013
Semi-solid materials for controlled release drug formulation: current status and future prospects
Michelle TRAN,Chun WANG
《化学科学与工程前沿(英文)》 2014年 第8卷 第2期 页码 225-232 doi: 10.1007/s11705-014-1429-7
关键词: controlled release drug delivery semi-solids polymer excipient
Evaluation of groundwater quality in the Xinjiang Plain Area
Jinlong ZHOU, Xinguang DONG, Yiping WANG, Guomin LI, Xiaojing GUO,
《环境科学与工程前沿(英文)》 2010年 第4卷 第2期 页码 183-186 doi: 10.1007/s11783-010-0021-8
关键词: groundwater quality evaluation one veto method total dissolved solids (TDS) pH total hardness
Munawar Ali, Junli Zhang, Roberto Raga, Maria Cristina Lavagnolo, Alberto Pivato, Xu Wang, Yuanyuan Zhang, Raffaello Cossu, Dongbei Yue
《环境科学与工程前沿(英文)》 2018年 第12卷 第3期 doi: 10.1007/s11783-018-1031-1
关键词: Municipal solid waste (MSW) Aerobic pretreatment degree (APD) Volatile solids (VS) Intermittent aeration (IA) Landfill gas Landfilling
标题 作者 时间 类型 操作
A concise review about fracture assessments of brittle solids with V-notches
Hsien-Yang YEH, Bin YANG
期刊论文
A FEniCS implementation of the phase field method for quasi-static brittle fracture
HIRSHIKESH, Sundararajan NATARAJAN, Ratna Kumar ANNABATTULA
期刊论文
Advances in molecular dynamics simulation of ultra-precision machining of hard and brittle materials
Xiaoguang GUO,Qiang LI,Tao LIU,Renke KANG,Zhuji JIN,Dongming GUO
期刊论文
Research progress on ultra-precision machining technologies for soft-brittle crystal materials
Hang GAO,Xu WANG,Dongming GUO,Yuchuan CHEN
期刊论文
High-gravity-assisted emulsification for continuous preparation of waterborne polyurethane nanodispersion with high solids
Weihong Zhang, Dan Wang, Jie-Xin Wang, Yuan Pu, Jian-Feng Chen
期刊论文
Modeling of solids segregation in circulating fluidized bed boilers
Xuan YAO, Tao WANG, Jia ZHAO, Hairui YANG, Hai ZHANG
期刊论文
Implementation aspects of a phase-field approach for brittle fracture
G. D. HUYNH, X. ZHUANG, H. NGUYEN-XUAN
期刊论文
Impact of solids on biphasic biodegradation of phenanthrene in the presence of hydroxypropyl- β
Zhenyi ZHANG, Chihiro INOUE, Guanghe LI,
期刊论文
Gas-solids separation model of a novel FCC riser terminator device: super short quick separator (SSQS
LU Chunxi, LI Ruxin, SHI Mingxian, LIU Xiancheng
期刊论文
Semi-solid materials for controlled release drug formulation: current status and future prospects
Michelle TRAN,Chun WANG
期刊论文
Evaluation of groundwater quality in the Xinjiang Plain Area
Jinlong ZHOU, Xinguang DONG, Yiping WANG, Guomin LI, Xiaojing GUO,
期刊论文
Effectiveness of aerobic pretreatment of municipal solid waste for accelerating biogas generation during simulated landfilling
Munawar Ali, Junli Zhang, Roberto Raga, Maria Cristina Lavagnolo, Alberto Pivato, Xu Wang, Yuanyuan Zhang, Raffaello Cossu, Dongbei Yue
期刊论文
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2021年04月22日
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