Frictional powders: Ratchetting under periodic strain in 3D (CD rom Paper no. S 20-5)

Stefan Luding; C.T. David; R. Garcia-Rojo; H.J. Herrmann

Frictional powders: Ratchetting under periodic strain in 3D (CD rom Paper no. S 20-5)

Stefan Luding, C.T. David, R. Garcia-Rojo, H.J. Herrmann

Faculty of Engineering Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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Abstract

The mechanical response of grains under quasi-static cyclic loading is studied by means of a threedimensional Molecular Dynamics scheme. The response of the system is characterized by an accumulation of plastic deformation with increasing number of cycles. From the (deviatoric) stressstrain relation a ratchet-like behavior is observed: Increasing the coefficient of friction leads to a transition from ratcheting to shake-down, i.e., the accumulation of strain stops. The strain rate shows a sharp transition when friction is increases above a certain value, whereas the fraction of sliding contacts shows a smooth, continuous transition, indicating that both effects are decoupled.

Original language	Undefined
Title of host publication	PARTEC 2007, 27-29 March 2007, Nuremberg, Germany
Editors	W. Peukert, C. Schreglmann
Place of Publication	Nuernberg, Germany
Publisher	Institute of Particle Technology, University of Erlangen.remberg and NurnbergMesse, Germany
Pages	1-4
Number of pages	4
Publication status	Published - 27 Mar 2008
Event	International Congress on Particle Technology, PARTEC 2007 - Nuremberg, Germany Duration: 27 Mar 2007 → 29 Mar 2007

Publication series

Name
Publisher	University of Erlangen-Nuremberg, Institute of Particle Technology

Conference

Conference	International Congress on Particle Technology, PARTEC 2007
Abbreviated title	PARTEC
Country/Territory	Germany
City	Nuremberg
Period	27/03/07 → 29/03/07

Keywords

IR-80327
METIS-249793

Access to Document

Luding07frictional

Cite this

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title = "Frictional powders: Ratchetting under periodic strain in 3D (CD rom Paper no. S 20-5)",

abstract = "The mechanical response of grains under quasi-static cyclic loading is studied by means of a threedimensional Molecular Dynamics scheme. The response of the system is characterized by an accumulation of plastic deformation with increasing number of cycles. From the (deviatoric) stressstrain relation a ratchet-like behavior is observed: Increasing the coefficient of friction leads to a transition from ratcheting to shake-down, i.e., the accumulation of strain stops. The strain rate shows a sharp transition when friction is increases above a certain value, whereas the fraction of sliding contacts shows a smooth, continuous transition, indicating that both effects are decoupled.",

keywords = "IR-80327, METIS-249793",

author = "Stefan Luding and C.T. David and R. Garcia-Rojo and H.J. Herrmann",

year = "2008",

month = mar,

day = "27",

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publisher = "Institute of Particle Technology, University of Erlangen.remberg and NurnbergMesse, Germany",

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editor = "W. Peukert and C. Schreglmann",

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note = "International Congress on Particle Technology, PARTEC 2007 ; Conference date: 27-03-2007 Through 29-03-2007",

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Luding, S, David, CT, Garcia-Rojo, R & Herrmann, HJ 2008, Frictional powders: Ratchetting under periodic strain in 3D (CD rom Paper no. S 20-5). in W Peukert & C Schreglmann (eds), PARTEC 2007, 27-29 March 2007, Nuremberg, Germany. Institute of Particle Technology, University of Erlangen.remberg and NurnbergMesse, Germany, Nuernberg, Germany, pp. 1-4, International Congress on Particle Technology, PARTEC 2007, Nuremberg, Germany, 27/03/07.

Frictional powders: Ratchetting under periodic strain in 3D (CD rom Paper no. S 20-5). / Luding, Stefan; David, C.T.; Garcia-Rojo, R. et al.
PARTEC 2007, 27-29 March 2007, Nuremberg, Germany. ed. / W. Peukert; C. Schreglmann. Nuernberg, Germany: Institute of Particle Technology, University of Erlangen.remberg and NurnbergMesse, Germany, 2008. p. 1-4.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Frictional powders: Ratchetting under periodic strain in 3D (CD rom Paper no. S 20-5)

AU - Luding, Stefan

AU - David, C.T.

AU - Garcia-Rojo, R.

AU - Herrmann, H.J.

PY - 2008/3/27

Y1 - 2008/3/27

N2 - The mechanical response of grains under quasi-static cyclic loading is studied by means of a threedimensional Molecular Dynamics scheme. The response of the system is characterized by an accumulation of plastic deformation with increasing number of cycles. From the (deviatoric) stressstrain relation a ratchet-like behavior is observed: Increasing the coefficient of friction leads to a transition from ratcheting to shake-down, i.e., the accumulation of strain stops. The strain rate shows a sharp transition when friction is increases above a certain value, whereas the fraction of sliding contacts shows a smooth, continuous transition, indicating that both effects are decoupled.

AB - The mechanical response of grains under quasi-static cyclic loading is studied by means of a threedimensional Molecular Dynamics scheme. The response of the system is characterized by an accumulation of plastic deformation with increasing number of cycles. From the (deviatoric) stressstrain relation a ratchet-like behavior is observed: Increasing the coefficient of friction leads to a transition from ratcheting to shake-down, i.e., the accumulation of strain stops. The strain rate shows a sharp transition when friction is increases above a certain value, whereas the fraction of sliding contacts shows a smooth, continuous transition, indicating that both effects are decoupled.

KW - IR-80327

KW - METIS-249793

M3 - Conference contribution

SP - 1

EP - 4

BT - PARTEC 2007, 27-29 March 2007, Nuremberg, Germany

A2 - Peukert, W.

A2 - Schreglmann, C.

PB - Institute of Particle Technology, University of Erlangen.remberg and NurnbergMesse, Germany

CY - Nuernberg, Germany

T2 - International Congress on Particle Technology, PARTEC 2007

Y2 - 27 March 2007 through 29 March 2007

ER -