Idioma:

Isogeometric analysis for strain field measurements

Elguedj, Thomas ; Réthoré, Julien ; Buteri, Aurélien

Computer methods in applied mechanics and engineering, 2011, Vol.200 (1-4), p.40-56 [Periódico revisado por pares]

Kidlington: Elsevier B.V

Texto completo disponível

Citações Citado por

Enviar para

Título:
Isogeometric analysis for strain field measurements
Autor: Elguedj, Thomas ; Réthoré, Julien ; Buteri, Aurélien
Assuntos: Algorithms ; Conservation ; Correlation analysis ; Digital ; Digital image correlation ; Engineering Sciences ; Exact sciences and technology ; Fatigue (materials) ; Fundamental areas of phenomenology (including applications) ; Inelasticity (thermoplasticity, viscoplasticity...) ; Isogeometric analysis ; Mathematical analysis ; Measurement and testing methods ; Mechanics ; NURBS ; Physics ; Solid mechanics ; Strain ; Strain field measurement ; Structural and continuum mechanics
É parte de: Computer methods in applied mechanics and engineering, 2011, Vol.200 (1-4), p.40-56
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
Descrição: In this paper, the potential of isogeometric analysis for strain field measurement by digital image correlation is investigated. Digital image correlation (DIC) is a full field kinematics measurement technique based on gray level conservation principle and the formulation we adopt allows for using arbitrary displacement bases. The high continuity properties of Non-Uniform Rational B-Spline (NURBS) functions are exploited herein as an additional regularization of the initial ill-posed problem. k-Refinement is analyzed on an artificial test case where the proposed methodology is shown to outperform the usual finite element-based DIC. Finally a fatigue tensile test on a thin aluminum sheet is analyzed. Strain localization occurs after a certain number of cycles and combination of NURBS into a DIC algorithm clearly shows a great potential to improve the robustness of non-linear constitutive law identification.
Editor: Kidlington: Elsevier B.V
Idioma: Inglês

Links

Voltar para lista de resultados

Realização: Logos de Redes Sociais:

Isogeometric analysis for strain field measurements

Elguedj, Thomas ; Réthoré, Julien ; Buteri, Aurélien

Kidlington: Elsevier B.V

Buscando em bases de dados remotas. Favor aguardar.