Journal ArticleDOI
Non-linear indentation behavior of foam core sandwich composite materials—A 2D approach
TLDR
In this article, the elastic-plastic response of sandwich composite beams with a foam core to local static loading is investigated. But the authors focus on a 2D configuration, where a sandwich beam is indented by a steel cylinder across the whole width of the specimen and the ABAQUS finite element package is used to model the indentation response of the beams.About:
This article is published in Computational Materials Science.The article was published on 2006-02-01. It has received 56 citations till now. The article focuses on the topics: Sandwich-structured composite & Indentation.read more
Citations
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Journal ArticleDOI
Low velocity bending impact behavior of foam core sandwich beams: Experimental
Umut Caliskan,M. Kemal Apalak +1 more
TL;DR: In this paper, the deformation behavior and the effects of the geometric and mechanical design parameters were investigated to improve the impact energy absorbing capability of sandwich beams with expanded polystyrene foam core reinforced by aluminum face-sheets using adhesive bonding technique.
Journal ArticleDOI
Semi-layerwise analysis of laminated plates with nonsingular delamination—The theorem of autocontinuity
TL;DR: In this article, a semi-layerwise approach is proposed to capture the mechanical behavior of delaminated composite plates using four equivalent single layers independently of the lay-up, and the results indicate that the first and third-order plate theories provide the best solutions, and give good approximation even in those cases when the previous models failed, i.e., when the delamination is asymmetrically placed between two layers and it is close to the free surface of the plate.
Journal ArticleDOI
Influences of spherical tip radius, contact depth, and contact area on nanoindentation properties of bone
TL;DR: The role of indent depth and indenter tip geometry in measuring the hierarchical properties of bone tissue was explored experimentally using a range of spherical indenter tips of R=5, 25, 65, and 200 μm, resulting in an artificial increase in elastic properties.
Journal ArticleDOI
Finite element analysis of indentation of aluminium foam and sandwich panels with aluminium foam core
TL;DR: In this article, the effect of the skin strength on the stiffness, strength and energy absorption of closed-cell aluminium foams and sandwich panels with aluminium foam core using the commercial finite-element software ABAQUS/Standard is investigated.
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A special case of parametrically excited systems: Free vibration of delaminated composite beams
TL;DR: In this paper, a finite element model is developed for the uncracked beam portion using the theory of layered beams and the so-called system of exact kinematic conditions, where the coupling between the flexural and longitudinal vibration is taken into consideration in the delaminated part and therefore it is shown that this part is loaded by periodic normal forces during free vibration of the system.
References
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Journal ArticleDOI
Indentation, Penetration and Perforation of Composite Laminate and Sandwich Panels under Quasi-Static and Projectile Loading
Journal ArticleDOI
Bending of sandwich beams with transversely flexible core
Yeoshua Frostig,Menahem Baruch +1 more
TL;DR: In this paper, the bending behavior of a sandwich beam with a foam core is analyzed and the main parameters affecting the overall behavior and particularly the peeling and the shear stresses between the skins and the core are studied.
Journal ArticleDOI
The crush behaviour of Rohacell-51WF structural foam
TL;DR: In this article, a hydrostatic test rig was designed to conduct hydrostatic compressive tests on the Rohacell-51WF foam to give basic mechanical properties of the studied foam.
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Theoretical and experimental investigation of local bending effects in sandwich plates
TL;DR: In this paper, the authors presented the results of a combined theoretical and experimental investigation of local bending effects in a clamped circular foam-cored sandwich plate subjected to a central point load, where the basic approach is to consider the deflection of the loaded face as being governed by a two-parameter elastic foundation model.
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Localized Load Effects in High-Order Bending of Sandwich Panels with Flexible Core
Y. Frostig,M. Baruch +1 more
TL;DR: In this paper, a high-order theory for the bending behavior of a sandwich panel with a "soft" core (i.e., flexible) in the vertical direction that is based on variational principles is presented.