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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: Ductile 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, critical undeformed chip thickness, brittle-ductile transition, subsurface damage, as well as a detailedIt is believed that ductile mode cutting of brittle materials could be achieved when both crack-free

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

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Mechanical properties of vanadium-alloyed austempered ductile iron for crankshaft applications

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0746-2

Abstract: This study focused on the development of austempered ductile iron (ADI) with desirable combination of

Keywords： austempered ductile iron (ADI)     vanadium alloying     mechanical properties     crankshafts     retained austenite    

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Experimental research on ductile fracture criterion in metal forming

Song YU, Weiming FENG

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3,   Pages 308-311 doi: 10.1007/s11465-011-0233-z

Abstract:

Ductile fracture criterion is key limitation parameter in material forming.utilized for providing the experimental values of the critical values at fracture, and 11 widely used ductilehigh triaxiality can be estimated successively using both Normalized Cockcroft-latham and the Brozzo ductile

Keywords： ductile fracture criteria     metal forming process     material experiment     stress triaxiality    

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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 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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Influence of welding residual stresses on the ductile crack growth resistance of circumferentially cracked

Xiaobo REN, Odd M. AKSELSEN, B?rd NYHUS, Zhiliang ZHANG

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 217-223 doi: 10.1007/s11709-012-0169-3

Abstract: This paper focuses on the effect of welding residual stress on the ductile crack growth resistance ofThe complete Gurson model has been employed to calculate the ductile crack growth resistance.Results show that residual stresses reduce the ductile crack growth resistance.However, the effect of residual stresses on ductile crack growth resistance decreases with the increase

Keywords： residual stress     ductile crack growth resistance     complete Gurson model     eigenstrain method    

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Ductile extension of 3-D external circumferential cracks in pipe structures

Wuchao YANG, Xudong QIAN

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 3,   Pages 294-303 doi: 10.1007/s11709-011-0115-9

Abstract: This study investigates the ductile fracture resistance of 3-D external circumferential cracks in theThe ductile crack extension utilizes an element extinction technique implemented in the computational

Keywords： ductile fracture     computational cell method     G-T model     J-R curve    

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Ultra-precision ductile grinding of BK7 using super abrasive diamond wheel

ZHAO Qingliang, Brinksmeier Ekkard, Riemer Oltmann, Rickens Kai

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3,   Pages 350-355 doi: 10.1007/s11465-007-0061-3

Abstract: experimental result shows that the newly developed conditioning technique is applicable and feasible to ductilefeaturing nano scale surface roughness, indicating the potential of super abrasive diamond wheels in ductilemachining brittle materials.

Keywords： ELID     peripheral     electrolytic in-process     nickel-electroplated monolayer     measurement    

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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    

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Epithelial-to-mesenchymal transition in cancer: complexity and opportunities

Yun Zhang, Robert A. Weinberg

Frontiers of Medicine 2018, Volume 12, Issue 4,   Pages 361-373 doi: 10.1007/s11684-018-0656-6

Abstract:

The cell-biological program termed the epithelial-to-mesenchymal transition (EMT) plays an important

Keywords： epithelial-to-mesenchymal transition     cancer     metastasis     cancer stem cell    

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Phase transition regulation and caloric effect

Frontiers in Energy 2023, Volume 17, Issue 4,   Pages 463-477 doi: 10.1007/s11708-023-0860-1

Abstract: worsening the performance in other aspects, like attaining a large caloric effect with narrowing the transitionperformance of materials, consisting of enlarging caloric effects, reducing hysteresis losses, adjusting transitiontemperatures, and widening transition temperature spans, which indicate that further progress can be

Keywords： phase transition regulation     caloric effect     solid state refrigeration    

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Enhanced empirical models for predicting the drift capacity of less ductile RC columns with flexural,

Mohammad Reza AZADI KAKAVAND, Reza ALLAHVIRDIZADEH

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1251-1270 doi: 10.1007/s11709-019-0554-2

Abstract: Capacity of components subjected to earthquake actions is still a widely interesting research topic. Hence, developing precise tools for predicting drift capacities of reinforced concrete (RC) columns is of great interest. RC columns are not only frequently constructed, but also their composite behavior makes the capacity prediction a task faced with many uncertainties. In the current article, novel empirical approaches are presented for predicting flexural, shear and axial failure modes in RC columns. To this aim, an extensive experimental database was created by collecting outcomes of previously conducted experimental tests since 1964, which are available in the literature. It serves as the basis for deriving the equations for predicting the drift capacity of RC columns by different regression analyses (both linear with different orders and nonlinear). Furthermore, fragility curves are determined for comparing the obtained results with the experimental results and with previously proposed models, like the ones of ASCE/SEI 41-13. It is demonstrated that the proposed equations predict drift capacities, which are in better agreement with experimental results than those computed by previously published models. In addition, the reliability of the proposed equations is higher from a probabilistic point of view.

Keywords： flexural-shear-axial failure     drift capacity     reinforced concrete columns     statistical analysis     fragility curves    

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Energy transition management towards a low-carbon world

Frontiers of Engineering Management 2022, Volume 9, Issue 3,   Pages 499-503 doi: 10.1007/s42524-022-0201-9

Keywords： energy transition     low-carbon technology     system modeling     transition path     emission reduction    

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Title Author Date Type Operation

A review on ductile mode cutting of brittle materials

Elijah Kwabena ANTWI, Kui LIU, Hao WANG

Journal Article

Mechanical properties of vanadium-alloyed austempered ductile iron for crankshaft applications

Journal Article

Experimental research on ductile fracture criterion in metal forming

Song YU, Weiming FENG

Journal Article

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

Hsien-Yang YEH, Bin YANG

Journal Article

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

HIRSHIKESH, Sundararajan NATARAJAN, Ratna Kumar ANNABATTULA

Journal Article

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

Journal Article

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

Hang GAO,Xu WANG,Dongming GUO,Yuchuan CHEN

Journal Article

Influence of welding residual stresses on the ductile crack growth resistance of circumferentially cracked

Xiaobo REN, Odd M. AKSELSEN, B?rd NYHUS, Zhiliang ZHANG

Journal Article

Ductile extension of 3-D external circumferential cracks in pipe structures

Wuchao YANG, Xudong QIAN

Journal Article

Ultra-precision ductile grinding of BK7 using super abrasive diamond wheel

ZHAO Qingliang, Brinksmeier Ekkard, Riemer Oltmann, Rickens Kai

Journal Article

Implementation aspects of a phase-field approach for brittle fracture

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

Journal Article

Epithelial-to-mesenchymal transition in cancer: complexity and opportunities

Yun Zhang, Robert A. Weinberg

Journal Article

Phase transition regulation and caloric effect

Journal Article

Enhanced empirical models for predicting the drift capacity of less ductile RC columns with flexural,

Mohammad Reza AZADI KAKAVAND, Reza ALLAHVIRDIZADEH

Journal Article

Energy transition management towards a low-carbon world

Journal Article