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Analytical Solution for Pin-Supported Metal Foam Core Sandwich Beam with Local Denting

Qin, Qing-Hua / Zhang, Jian-Xun / Wang, Tao / Wang, T.J.

Structural response of pin-supported metallic foam core sandwich beam is theoretically investigated. Effects of local denting and core strength and interaction of bending and axial stretching are considered in analysis. A rigid-plastic beam-on-foundation is employed to consider local denting deformation. The local denting continues during the overall deformation of sandwich beam. It is shown that upon neglecting the effect of local denting, the load-carrying capacity and energy absorption of sandwich beam may be overestimated, and the normal axial (membrane) force associated with plastic stretching substantially stiffens the sandwich beams.

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Analytical Solution for Pin-Supported Metal Foam Core Sandwich Beam with Local Denting

Qin, Qing-Hua / Zhang, Jian-Xun / Wang, Tao / Wang, T.J.

Structural response of pin-supported metallic foam core sandwich beam is theoretically investigated. Effects of local denting and core strength and interaction of bending and axial stretching are considered in analysis. A rigid-plastic beam-on-foundation is employed to consider local denting deformation. The local denting continues during the overall deformation of sandwich beam. It is shown that upon neglecting the effect of local denting, the load-carrying capacity and energy absorption of sandwich beam may be overestimated, and the normal axial (membrane) force associated with plastic stretching substantially stiffens the sandwich beams.

Analytical Solution for Pin-Supported Metal Foam Core Sandwich Beam with Local Denting

Qin, Qing-Hua / Zhang, Jian-Xun / Wang, Tao / Wang, T.J.

Structural response of pin-supported metallic foam core sandwich beam is theoretically investigated. Effects of local denting and core strength and interaction of bending and axial stretching are considered in analysis. A rigid-plastic beam-on-foundation is employed to consider local denting deformation. The local denting continues during the overall deformation of sandwich beam. It is shown that upon neglecting the effect of local denting, the load-carrying capacity and energy absorption of sandwich beam may be overestimated, and the normal axial (membrane) force associated with plastic stretching substantially stiffens the sandwich beams.

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Titel:

Analytical Solution for Pin-Supported Metal Foam Core Sandwich Beam with Local Denting

Beteiligte:

Qin, Qing-Hua (Autor:in) / Zhang, Jian-Xun (Autor:in) / Wang, Tao (Autor:in) / Wang, T.J. (Autor:in)

Erschienen in:

Fracture and Strength of Solids VII, FEOFS, International Conference on Fracture and Strength of Solids, 8 ; 639-644

Key Engineering Materials ; 462-463

Erscheinungsdatum:

2011

Format / Umfang:

6 Seiten

ISSN:

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.462-463.639

Medientyp:

Aufsatz (Konferenz)

Format:

Print

Sprache:

Englisch

Schlagwörter:

Energieabsorption , Metallschaum , Kunststoff , Eindrückung , Tragfähigkeit

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