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Journal Article 6

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2019 3

2018 1

2017 2

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fracture 2

review 2

ultra-precision machining 2

FEM 1

FEniCS 1

MD simulation 1

V-notches 1

assessment 1

brittle 1

brittle fracture 1

brittle materials 1

brittle solids 1

brittle-ductile transition 1

crack propagation 1

critical undeformed chip thickness 1

ductile mode cutting 1

functional crystal 1

hard and brittle materials 1

machining mechanism 1

molecular dynamic simulation 1

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A concise review about fracture assessments of brittle solids with V-notches

Hsien-Yang YEH, Bin YANG

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2, Pages 478-485 doi: 10.1007/s11709-019-0520-z

Abstract:

A concise review of recent studies about the fracture assessments of elastic brittle solid materials

Keywords： fracture assessment brittle solids V-notches review

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A review on ductile mode cutting of brittle materials

Elijah Kwabena ANTWI, Kui LIU, Hao WANG

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 2, Pages 251-263 doi: 10.1007/s11465-018-0504-z

Abstract:

Brittle materials have been widely employed for industrial applications due to their excellent mecha-nicalBut obtaining smooth and damage-free surface on brittle materials by traditional machining methods likeDuctile mode cutting is a very promising way to achieve high quality and crack-free surfaces of brittleThus the study of ductile mode cutting of brittle materials has been attracting more and more effortsThis paper provides an overview of ductile mode cutting of brittle materials including ductile nature

Keywords： ductile mode cutting brittle materials critical undeformed chip thickness brittle-ductile transition

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A FEniCS implementation of the phase field method for quasi-static brittle fracture

HIRSHIKESH, Sundararajan NATARAJAN, Ratna Kumar ANNABATTULA

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2, Pages 380-396 doi: 10.1007/s11709-018-0471-9

Abstract: The present work discusses the implementation of the phase field method for brittle fracture within the

Keywords： phase field method FEniCS brittle fracture crack propagation variational theory of fracture

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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

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1, Pages 89-98 doi: 10.1007/s11465-017-0412-7

Abstract:

Hard and brittle materials, such as silicon, SiC, and optical glasses, are widely used in aerospaceHowever, 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 brittleUltra-precision machining is widely used in processing hard and brittle materials to obtain nanoscalereview of present research on the molecular dynamics simulation of ultra-precision machining of hard and brittle

Keywords： MD simulation ultra-precision machining hard and brittle materials machining mechanism review

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Research progress on ultra-precision machining technologies for soft-brittle crystal materials

Hang GAO,Xu WANG,Dongming GUO,Yuchuan CHEN

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1, Pages 77-88 doi: 10.1007/s11465-017-0411-8

Abstract:

Soft-brittle crystal materials are widely used in many fields, especially optics and microelectronicsHowever, these materials are difficult to machine through traditional machining methods because of their brittleIn this article, the characteristics and machining difficulties of soft-brittle and crystals are presentedMoreover, the latest research progress of novel machining technologies and their applications for soft-brittleThis article reviews the research progress of soft-brittle crystals processing.

Keywords： brittle soft functional crystal ultra-precision machining

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Implementation aspects of a phase-field approach for brittle fracture

G. D. HUYNH, X. ZHUANG, H. NGUYEN-XUAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2, Pages 417-428 doi: 10.1007/s11709-018-0477-3

Abstract: This paper provides a comprehensive overview of a phase-field model of fracture in solid mechanics setting. We start reviewing the potential energy governing the whole process of fracture including crack initiation, branching or merging. Then, a discretization of system of equation is derived, in which the key aspect is that for the correctness of fracture phenomena, a split into tensile and compressive terms of the strain energy is performed, which allows crack to occur in tension, not in compression. For numerical analysis, standard finite element shape functions are used for both primary fields including displacements and phase field. A staggered scheme which solves the two fields of the problem separately is utilized for solution step and illustrated with a segment of Python code.

Keywords： phase-field modeling FEM staggered scheme fracture