Unstable creeping in geomaterials

Claudio di Prisco; Federico Pisanò

doi:10.1007/978-3-319-56397-8_18

Unstable creeping in geomaterials

^*Corresponding author for this work

Geo-engineering

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

1 Citation (Scopus)

Abstract

Time plays a dominant role in many areas of geomechanics, such as in the assessment of landslide hazard and territorial vulnerability. In this context, the reliable description of the temporal evolution of both soil mass movements and their dependence on loading rate effects is deemed crucial. From a theoretical standpoint, the time-dependent behaviour of geomaterials can be described by means of viscoplastic constitutive theories, also beneficial to foster the objectivity of numerical results from strain localisation simulations. However, not all the aspects of viscoplastic modelling have been so far clearly acknowledged in the literature. For this reason, in this paper the authors focus on creeping strain localization phenomena under simple shear conditions, discussing, from a theoretical point of view, the mechanical condition to be satisfied for tertiary creep to occur.

Original language	English
Title of host publication	Bifurcation and Degradation of Geomaterials with Engineering Applications
Subtitle of host publication	Proceedings of the 11th International Workshop on Bifurcation and Degradation in Geomaterials dedicated to Hans Muhlhaus, Limassol, Cyprus, 21-25 May 2017
Editors	E. Papamichos, P. Papanastasiou, E. Pasternak, A. Dyskin
Publisher	Springer
Pages	139-145
Number of pages	7
ISBN (Electronic)	978-3-319-56397-8
ISBN (Print)	978-3-319-56396-1
DOIs	https://doi.org/10.1007/978-3-319-56397-8_18
Publication status	Published - 2017
Event	11th International Workshop on Bifurcation and Degradation in Geomaterials: dedicated to Hans Muhlhaus - Limassol, Cyprus Duration: 21 May 2017 → 25 May 2017 Conference number: 11

Publication series

Name	IWBDG: International Workshop on Bifurcation and Degradation in Geomaterials
Publisher	Springer
ISSN (Print)	1866-8755
ISSN (Electronic)	1866-8763

Conference

Conference	11th International Workshop on Bifurcation and Degradation in Geomaterials
Abbreviated title	IWBDG 2017
Country/Territory	Cyprus
City	Limassol
Period	21/05/17 → 25/05/17

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10.1007/978-3-319-56397-8_18

Cite this

di Prisco, C., & Pisanò, F. (2017). Unstable creeping in geomaterials. In E. Papamichos, P. Papanastasiou, E. Pasternak, & A. Dyskin (Eds.), Bifurcation and Degradation of Geomaterials with Engineering Applications: Proceedings of the 11th International Workshop on Bifurcation and Degradation in Geomaterials dedicated to Hans Muhlhaus, Limassol, Cyprus, 21-25 May 2017 (pp. 139-145). (IWBDG: International Workshop on Bifurcation and Degradation in Geomaterials ). Springer. https://doi.org/10.1007/978-3-319-56397-8_18

di Prisco, Claudio ; Pisanò, Federico. / Unstable creeping in geomaterials. Bifurcation and Degradation of Geomaterials with Engineering Applications: Proceedings of the 11th International Workshop on Bifurcation and Degradation in Geomaterials dedicated to Hans Muhlhaus, Limassol, Cyprus, 21-25 May 2017. editor / E. Papamichos ; P. Papanastasiou ; E. Pasternak ; A. Dyskin. Springer, 2017. pp. 139-145 (IWBDG: International Workshop on Bifurcation and Degradation in Geomaterials ).

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title = "Unstable creeping in geomaterials",

abstract = "Time plays a dominant role in many areas of geomechanics, such as in the assessment of landslide hazard and territorial vulnerability. In this context, the reliable description of the temporal evolution of both soil mass movements and their dependence on loading rate effects is deemed crucial. From a theoretical standpoint, the time-dependent behaviour of geomaterials can be described by means of viscoplastic constitutive theories, also beneficial to foster the objectivity of numerical results from strain localisation simulations. However, not all the aspects of viscoplastic modelling have been so far clearly acknowledged in the literature. For this reason, in this paper the authors focus on creeping strain localization phenomena under simple shear conditions, discussing, from a theoretical point of view, the mechanical condition to be satisfied for tertiary creep to occur.",

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doi = "10.1007/978-3-319-56397-8_18",

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booktitle = "Bifurcation and Degradation of Geomaterials with Engineering Applications",

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di Prisco, C & Pisanò, F 2017, Unstable creeping in geomaterials. in E Papamichos, P Papanastasiou, E Pasternak & A Dyskin (eds), Bifurcation and Degradation of Geomaterials with Engineering Applications: Proceedings of the 11th International Workshop on Bifurcation and Degradation in Geomaterials dedicated to Hans Muhlhaus, Limassol, Cyprus, 21-25 May 2017. IWBDG: International Workshop on Bifurcation and Degradation in Geomaterials , Springer, pp. 139-145, 11th International Workshop on Bifurcation and Degradation in Geomaterials, Limassol, Cyprus, 21/05/17. https://doi.org/10.1007/978-3-319-56397-8_18

Unstable creeping in geomaterials. / di Prisco, Claudio; Pisanò, Federico.
Bifurcation and Degradation of Geomaterials with Engineering Applications: Proceedings of the 11th International Workshop on Bifurcation and Degradation in Geomaterials dedicated to Hans Muhlhaus, Limassol, Cyprus, 21-25 May 2017. ed. / E. Papamichos; P. Papanastasiou; E. Pasternak; A. Dyskin. Springer, 2017. p. 139-145 (IWBDG: International Workshop on Bifurcation and Degradation in Geomaterials ).

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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AU - Pisanò, Federico

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AB - Time plays a dominant role in many areas of geomechanics, such as in the assessment of landslide hazard and territorial vulnerability. In this context, the reliable description of the temporal evolution of both soil mass movements and their dependence on loading rate effects is deemed crucial. From a theoretical standpoint, the time-dependent behaviour of geomaterials can be described by means of viscoplastic constitutive theories, also beneficial to foster the objectivity of numerical results from strain localisation simulations. However, not all the aspects of viscoplastic modelling have been so far clearly acknowledged in the literature. For this reason, in this paper the authors focus on creeping strain localization phenomena under simple shear conditions, discussing, from a theoretical point of view, the mechanical condition to be satisfied for tertiary creep to occur.

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di Prisco C, Pisanò F. Unstable creeping in geomaterials. In Papamichos E, Papanastasiou P, Pasternak E, Dyskin A, editors, Bifurcation and Degradation of Geomaterials with Engineering Applications: Proceedings of the 11th International Workshop on Bifurcation and Degradation in Geomaterials dedicated to Hans Muhlhaus, Limassol, Cyprus, 21-25 May 2017. Springer. 2017. p. 139-145. (IWBDG: International Workshop on Bifurcation and Degradation in Geomaterials ). doi: 10.1007/978-3-319-56397-8_18

Unstable creeping in geomaterials

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