A Green function-based approach is presented to address the nonlinear tensionless contactproblem for beams resting on either a Winkler or a Pasternak two-parameter elastic foundation.Unlike the traditional solution procedure, this approach allows determination of the contact locus position independently from the deflection curves. By doing so, a general nonlinear connection between the loading and the contact locus is found, which enlightens the specific features of the loading that affect the position of the contact locus. It is then possible to build load classes sharing the property that their application leads to the same contact locus. Within such load classes, the problem is linear and a superposition principle holds. Several applications of the method are presented, including symmetric and nonsymmetric contact layouts, which can be hardly tackled within the traditional solution procedure. Whenever possible, resultsare compared with the existing literature. © 2013 American Society of Civil Engineers.

Superposition principle for the tensionless contact of a beam resting on a winkler or a pasternak foundation / Nobili, Andrea. - In: JOURNAL OF ENGINEERING MECHANICS. - ISSN 0733-9399. - STAMPA. - 139:10(2013), pp. 1470-1478. [10.1061/(ASCE)EM.1943-7889.0000555]

Superposition principle for the tensionless contact of a beam resting on a winkler or a pasternak foundation

NOBILI, Andrea
2013

Abstract

A Green function-based approach is presented to address the nonlinear tensionless contactproblem for beams resting on either a Winkler or a Pasternak two-parameter elastic foundation.Unlike the traditional solution procedure, this approach allows determination of the contact locus position independently from the deflection curves. By doing so, a general nonlinear connection between the loading and the contact locus is found, which enlightens the specific features of the loading that affect the position of the contact locus. It is then possible to build load classes sharing the property that their application leads to the same contact locus. Within such load classes, the problem is linear and a superposition principle holds. Several applications of the method are presented, including symmetric and nonsymmetric contact layouts, which can be hardly tackled within the traditional solution procedure. Whenever possible, resultsare compared with the existing literature. © 2013 American Society of Civil Engineers.
2013
139
10
1470
1478
Superposition principle for the tensionless contact of a beam resting on a winkler or a pasternak foundation / Nobili, Andrea. - In: JOURNAL OF ENGINEERING MECHANICS. - ISSN 0733-9399. - STAMPA. - 139:10(2013), pp. 1470-1478. [10.1061/(ASCE)EM.1943-7889.0000555]
Nobili, Andrea
File in questo prodotto:
File Dimensione Formato  
NOBILI_revised_version.pdf

Open access

Descrizione: Articolo principale (main article text)
Tipologia: Versione dell'autore revisionata e accettata per la pubblicazione
Dimensione 255.06 kB
Formato Adobe PDF
255.06 kB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1115020
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 23
  • ???jsp.display-item.citation.isi??? 23
social impact