The Buckling of Sandwich-Type Panels

Hoff, N. J.; Mautner, S. E.

doi:10.2514/8.11246

Cited by 211 publications

(144 citation statements)

References 3 publications

Supporting

Mentioning

137

Contrasting

Order By: Relevance

“…Other models have been proposed in which the core is considered as a continuous isotropic or orthotropic medium. Among them, one may identify anti-plane core models, in which the core has only transverse stiffness E c z and G c xz and the in-plane stiffness is neglected (E c x = 0) [35,36], and models including a finite value for the in-plane stiffness [20,26,29,30]. Furthermore, several models are limited to isotropic cores [26,29,36], while others include material orthotropy [20,30,35].…”

Section: Models For Overall Buckling and Wrinkling Of Sandwich Strutsmentioning

confidence: 99%

“…Among them, one may identify anti-plane core models, in which the core has only transverse stiffness E c z and G c xz and the in-plane stiffness is neglected (E c x = 0) [35,36], and models including a finite value for the in-plane stiffness [20,26,29,30]. Furthermore, several models are limited to isotropic cores [26,29,36], while others include material orthotropy [20,30,35]. Finally, one may identify core models that account for the interaction between the top and bottom face sheets (finite thickness) [20,29,35] from those representing a core of infinite thickness, in which the interaction between the face sheets is disregarded [30,36].…”

Section: Models For Overall Buckling and Wrinkling Of Sandwich Strutsmentioning

confidence: 99%

“…Furthermore, several models are limited to isotropic cores [26,29,36], while others include material orthotropy [20,30,35]. Finally, one may identify core models that account for the interaction between the top and bottom face sheets (finite thickness) [20,29,35] from those representing a core of infinite thickness, in which the interaction between the face sheets is disregarded [30,36]. A widely accepted expression for the wrinkling stress obtained from these models can be written as…”

Section: Models For Overall Buckling and Wrinkling Of Sandwich Strutsmentioning

confidence: 99%

“…The interaction is more pronounced for long wavelengths, whereas short wavelengths damp out more rapidly inside the core. These relations appear explicitly in the formulations of "decay" models, see e.g., [26,35,36]. For completeness, the problem of wrinkling due to biaxial loading is briefly addressed.…”

Section: Models For Overall Buckling and Wrinkling Of Sandwich Strutsmentioning

confidence: 99%

See 3 more Smart Citations

Linearized global and local buckling analysis of sandwich struts with a refined quasi-3D model

D′Ottavio¹,

Polit²

2014

Acta Mech

View full text Add to dashboard Cite

HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

show abstract

Section: Models For Overall Buckling and Wrinkling Of Sandwich Strutsmentioning

confidence: 99%

Section: Models For Overall Buckling and Wrinkling Of Sandwich Strutsmentioning

confidence: 99%

Section: Models For Overall Buckling and Wrinkling Of Sandwich Strutsmentioning

confidence: 99%

Section: Models For Overall Buckling and Wrinkling Of Sandwich Strutsmentioning

confidence: 99%

See 2 more Smart Citations

Linearized global and local buckling analysis of sandwich struts with a refined quasi-3D model

D′Ottavio¹,

Polit²

2014

Acta Mech

View full text Add to dashboard Cite

show abstract

“…The study of layered systems has been extensively conducted in the field of engineering, where it was used to model the buckling of sandwichtype panels (Hoff and Mautner, 1945), the Earth's crust (Biot, 1957;Ramberg, 1970), etc. These works, however, deal mostly with stiff materials and large stiffness ratios.…”

Section: Introductionmentioning

confidence: 99%

The role of thickness inhomogeneities in hierarchical cortical folding

Campos¹,

Hornung²,

Gompper³

et al. 2020

Preprint

View full text Add to dashboard Cite

The morphology of the mammalian brain cortex is highly folded. For long it has been known that specific patterns of folding are necessary for an optimally functioning brain. On the extremes, lissencephaly, a lack of folds in humans, and polymicrogyria, an overly folded brain, can lead to severe mental retardation, short life expectancy, epileptic seizures, and tetraplegia. The construction of a quantitative model on how and why these folds appear during the development of the brain is the first step in understanding the cause of these conditions. In recent years, there have been various attempts to understand and model the mechanisms of brain folding. Previous works have shown that mechanical instabilities play a crucial role in the formation of brain folds, and that the geometry of the fetal brain is one of the main factors in dictating the folding characteristics. However, modeling higher-order folding, one of the main characteristics of the highly gyrencephalic brain, has not been fully tackled. The effects of thickness inhomogeneity in the gyrogenesis of the mammalian brain are studied in silico. Finite-element simulations of rectangular slabs are performed. The slabs are divided into two distinct regions, where the outer layer mimics the gray matter, and the inner layer the underlying white matter. Differential growth is introduced by growing the top layer tangentially, while keeping the underlying layer untouched. The brain tissue is modeled as a neo-Hookean hyperelastic material. Simulations are performed with both, homogeneous and inhomogeneous cortical thickness. The homogeneous cortex is shown to fold into a single wavelength, as is common for bilayered materials, while the inhomogeneous cortex folds into more complex conformations. In the early stages of development of the inhomogeneous cortex, structures reminiscent of the deep sulci in the brain are obtained. As the cortex continues to develop, secondary undulations, which are shallower and more variable than the structures obtained in earlier gyrification stage emerge, reproducing well-known characteristics of higher-order folding in the mammalian, and particularly the human, brain.

show abstract

Sandwich Structure

2010

Design and Analysis of Composite Structures

View full text Add to dashboard Cite

The Buckling of Sandwich-Type Panels

Cited by 211 publications

References 3 publications

Linearized global and local buckling analysis of sandwich struts with a refined quasi-3D model

Linearized global and local buckling analysis of sandwich struts with a refined quasi-3D model

The role of thickness inhomogeneities in hierarchical cortical folding

Sandwich Structure

Contact Info

Product

Resources

About