Discrete Element Modeling of Compound Rockfall Fence Nets

Marco Previtali; Matteo Ciantia; Saverio Spadea; Riccardo  Castellanza; Giovanni B. Crosta

doi:10.1007/978-3-030-64518-2_66

Discrete Element Modeling of Compound Rockfall Fence Nets

Marco Previtali (Lead / Corresponding author), Matteo Ciantia, Saverio Spadea, Riccardo Castellanza, Giovanni B. Crosta

Civil Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

6 Citations (Scopus)

209 Downloads (Pure)

Abstract

Compound mesh panels are structures in which two different nets geometries are employed: a main mesh that provides the bearing capacity and a weaker mesh with a thin sieve size to catch smaller blocks that can pass through otherwise. Typically, only the effect of the main mesh is investigated, and the weaker mesh is considered to provide negligible structural resistance. In this paper, after a calibration procedure, numerical simulations of quasi-static punch tests and a dynamic block impact on a composite double-twist and strand rope mesh are performed. The results show that, under dynamic conditions, the presence of the finer mesh lowers the peak force acting on the main mesh. This effect is not found under quasi-static conditions and has important repercussions on the overall structural resistance as the energy dissipation mechanism reduces the stress on the mesh fence posts.

Original language	English
Title of host publication	Challenges and Innovations in Geomechanics
Subtitle of host publication	Proceedings of the 16th International Conference of IACMAG - Volume 2
Editors	Marco Barla, Alice Di Donna, Donatella Sterpi
Place of Publication	Switzerland
Publisher	Springer
Pages	560-567
Number of pages	8
Volume	2
ISBN (Electronic)	9783030645182
ISBN (Print)	9783030645175
DOIs	https://doi.org/10.1007/978-3-030-64518-2_66
Publication status	Published - 2021
Event	16th International Conference of the International Association for Computer Methods and Advances in Geomechanics - Torino, Italy Duration: 1 Jul 2020 → 3 Jul 2020 Conference number: 16th https://www.symposium.it/en/events/2020/16th-international-conference-of-iacmag

Publication series

Name	Lecture Notes in Civil Engineering
Volume	126
ISSN (Print)	2366-2557
ISSN (Electronic)	2366-2565

Conference

Conference	16th International Conference of the International Association for Computer Methods and Advances in Geomechanics
Abbreviated title	IACMAG 2020
Country/Territory	Italy
City	Torino
Period	1/07/20 → 3/07/20
Internet address	https://www.symposium.it/en/events/2020/16th-international-conference-of-iacmag

Keywords

Discrete element modelling
Impact test
Punch test
Rockfall risk mitigation
Stress repartition

ASJC Scopus subject areas

Civil and Structural Engineering

Access to Document

10.1007/978-3-030-64518-2_66

Author Accepted ManuscriptAccepted author manuscript, 604 KB

Cite this

Previtali, M., Ciantia, M., Spadea, S., Castellanza, R., & Crosta, G. B. (2021). Discrete Element Modeling of Compound Rockfall Fence Nets. In M. Barla, A. Di Donna, & D. Sterpi (Eds.), Challenges and Innovations in Geomechanics: Proceedings of the 16th International Conference of IACMAG - Volume 2 (Vol. 2, pp. 560-567). (Lecture Notes in Civil Engineering; Vol. 126). Springer . https://doi.org/10.1007/978-3-030-64518-2_66

Previtali, Marco ; Ciantia, Matteo ; Spadea, Saverio et al. / Discrete Element Modeling of Compound Rockfall Fence Nets. Challenges and Innovations in Geomechanics: Proceedings of the 16th International Conference of IACMAG - Volume 2. editor / Marco Barla ; Alice Di Donna ; Donatella Sterpi. Vol. 2 Switzerland : Springer , 2021. pp. 560-567 (Lecture Notes in Civil Engineering).

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abstract = "Compound mesh panels are structures in which two different nets geometries are employed: a main mesh that provides the bearing capacity and a weaker mesh with a thin sieve size to catch smaller blocks that can pass through otherwise. Typically, only the effect of the main mesh is investigated, and the weaker mesh is considered to provide negligible structural resistance. In this paper, after a calibration procedure, numerical simulations of quasi-static punch tests and a dynamic block impact on a composite double-twist and strand rope mesh are performed. The results show that, under dynamic conditions, the presence of the finer mesh lowers the peak force acting on the main mesh. This effect is not found under quasi-static conditions and has important repercussions on the overall structural resistance as the energy dissipation mechanism reduces the stress on the mesh fence posts.",

keywords = "Discrete element modelling, Impact test, Punch test, Rockfall risk mitigation, Stress repartition",

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Previtali, M , Ciantia, M , Spadea, S, Castellanza, R & Crosta, GB 2021, Discrete Element Modeling of Compound Rockfall Fence Nets. in M Barla, A Di Donna & D Sterpi (eds), Challenges and Innovations in Geomechanics: Proceedings of the 16th International Conference of IACMAG - Volume 2. vol. 2, Lecture Notes in Civil Engineering, vol. 126, Springer , Switzerland, pp. 560-567, 16th International Conference of the International Association for Computer Methods and Advances in Geomechanics, Torino, Italy, 1/07/20. https://doi.org/10.1007/978-3-030-64518-2_66

Discrete Element Modeling of Compound Rockfall Fence Nets. / Previtali, Marco (Lead / Corresponding author); Ciantia, Matteo ; Spadea, Saverio et al.
Challenges and Innovations in Geomechanics: Proceedings of the 16th International Conference of IACMAG - Volume 2. ed. / Marco Barla; Alice Di Donna; Donatella Sterpi. Vol. 2 Switzerland: Springer , 2021. p. 560-567 (Lecture Notes in Civil Engineering; Vol. 126).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Discrete Element Modeling of Compound Rockfall Fence Nets

AU - Previtali, Marco

AU - Ciantia, Matteo

AU - Spadea, Saverio

AU - Castellanza, Riccardo

AU - Crosta, Giovanni B.

N1 - Conference code: 16th

PY - 2021

Y1 - 2021

N2 - Compound mesh panels are structures in which two different nets geometries are employed: a main mesh that provides the bearing capacity and a weaker mesh with a thin sieve size to catch smaller blocks that can pass through otherwise. Typically, only the effect of the main mesh is investigated, and the weaker mesh is considered to provide negligible structural resistance. In this paper, after a calibration procedure, numerical simulations of quasi-static punch tests and a dynamic block impact on a composite double-twist and strand rope mesh are performed. The results show that, under dynamic conditions, the presence of the finer mesh lowers the peak force acting on the main mesh. This effect is not found under quasi-static conditions and has important repercussions on the overall structural resistance as the energy dissipation mechanism reduces the stress on the mesh fence posts.

AB - Compound mesh panels are structures in which two different nets geometries are employed: a main mesh that provides the bearing capacity and a weaker mesh with a thin sieve size to catch smaller blocks that can pass through otherwise. Typically, only the effect of the main mesh is investigated, and the weaker mesh is considered to provide negligible structural resistance. In this paper, after a calibration procedure, numerical simulations of quasi-static punch tests and a dynamic block impact on a composite double-twist and strand rope mesh are performed. The results show that, under dynamic conditions, the presence of the finer mesh lowers the peak force acting on the main mesh. This effect is not found under quasi-static conditions and has important repercussions on the overall structural resistance as the energy dissipation mechanism reduces the stress on the mesh fence posts.

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KW - Stress repartition

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VL - 2

T3 - Lecture Notes in Civil Engineering

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EP - 567

BT - Challenges and Innovations in Geomechanics

A2 - Barla, Marco

A2 - Di Donna, Alice

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Y2 - 1 July 2020 through 3 July 2020

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Previtali M , Ciantia M , Spadea S, Castellanza R, Crosta GB. Discrete Element Modeling of Compound Rockfall Fence Nets. In Barla M, Di Donna A, Sterpi D, editors, Challenges and Innovations in Geomechanics: Proceedings of the 16th International Conference of IACMAG - Volume 2. Vol. 2. Switzerland: Springer . 2021. p. 560-567. (Lecture Notes in Civil Engineering). Epub 2021 Jan 15. doi: 10.1007/978-3-030-64518-2_66

Discrete Element Modeling of Compound Rockfall Fence Nets

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Experimental and numerical characterization of Double-Twisted hexagonal meshes for rockfall protection

Cite this

Discrete Element Modeling of Compound Rockfall Fence Nets

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Student theses

Experimental and numerical characterization of Double-Twisted hexagonal meshes for rockfall protection

Cite this