Thermal buckling of thin sheet related to cold rolling: Latent flatness defects modeling

Autor: Ali Limam, Nicolas Tardif, Hamza El Khaloui, Dinh Cuong Tran
Přispěvatelé: Laboratoire de Génie Civil et d'Ingénierie Environnementale (LGCIE), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne] (LaMCoS), Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Materials science
Field (physics)
Unloading
Flatness (systems theory)
Residual stress
02 engineering and technology
Edge (geometry)
Physics::Fluid Dynamics
0203 mechanical engineering
Thermal
Ultimate tensile strength
Composite material
[SPI.MECA.SOLID]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of the solides [physics.class-ph]
Civil and Structural Engineering
Rolling
Tension (physics)
business.industry
Mechanical Engineering
Modeling
Latent flatness defect
Building and Construction
Structural engineering
021001 nanoscience & nanotechnology
[SPI.MECA.STRU]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of the structures [physics.class-ph]
020303 mechanical engineering & transports
Buckling
Thermal buckling
[SPI.MECA.THER]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Thermics [physics.class-ph]
0210 nano-technology
business
Experiments
Zdroj: Thin-Walled Structures
Thin-Walled Structures, Elsevier, 2017, 113, pp.129-135. ⟨10.1016/j.tws.2016.12.010⟩
ISSN: 0263-8231
DOI: 10.1016/j.tws.2016.12.010⟩
Popis: International audience; In cold rolling of thin sheet metal, the interstand tension has a role to mitigate the wrinkling of the plate due to residual stress. When this mechanical loading is reduced up to full unloading, it can induce or increase elastic wave buckling, leading to latent flatness defects. An experimental work is proposed to study the relation between residual stresses, global tensile stresses and buckling for wavy edge flatness defects during the mechanical unloading. Residual stresses are generated by thermal loading. The wrinkling shape and thermal field are measured by optical full-field measurements. Finite Element simulation using a combination of a non-linear algorithm and a bifurcation analysis that take into account mid-surface imperfections can follow the wrinkling behavior.
Databáze: OpenAIRE
Externí odkaz: