On the Crumpling of Thin Tubular Struts

Pugsley, A. G.

doi:10.1093/qjmam/32.1.1

Cited by 64 publications

(24 citation statements)

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“…In the next section we shall see whether conditions (6) and (10) can be made compatible with other simplifying assumptions regarding the kinematics of the crushing process.…”

Section: Analysis Of Discontinuitiesmentioning

confidence: 99%

Crushing analysis of rotationally symmetric plastic shells

Oliveira

Wierzbicki

1982

The Journal of Strain Analysis for Engineering Design

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“…In the next section we shall see whether conditions (6) and (10) can be made compatible with other simplifying assumptions regarding the kinematics of the crushing process.…”

Section: Analysis Of Discontinuitiesmentioning

confidence: 99%

Crushing analysis of rotationally symmetric plastic shells

Oliveira

Wierzbicki

1982

The Journal of Strain Analysis for Engineering Design

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“…In order to quantify this interaction, and based on [12], α and β are taken equal to 0.5 and 1, respectively, for Equation (8). The value of σ f was taken equal to σ …”

Section: Assessment Of the Interaction Effect Of The Polymeric Foammentioning

confidence: 99%

Axial crushing of aluminum extrusions filled with PET foam and GFRP. An experimental investigation

Costas

Morin

Langseth

et al. 2016

Thin-Walled Structures

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This research work investigated the axial crushing behavior of a circular aluminum extrusion in alloy AA6063-T5 filled with polymeric foam and a glass-fiber structure. The components were experimentally tested under quasi-static and impact loading conditions supported by a material testing campaign. Energy absorption, crush force efficiency and specific energy absorption were experimentally measured in order to assess the performance of a design proposal. Besides, the interaction effects between the different materials has been analyzed in depth and compared to the results for aluminum foam filled extrusions available in the literature. The confinement effect of the foam on the glass fiber plates has been found to have a very remarkable contribution to the energy absorption levels of the component, whereas a negligible foam-extrusion interaction was observed due to the gaps in the initial geometry of the specimen. The investigated component show an overall good performance, specially in terms of crush force efficiency. However, the specific energy absorption of the component was reduced by approximately 10 % compared to the aluminum extrusion alone.

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“…Furthermore, it deforms either axisymmetrically (concertina or ring mode) or asymmetrically (diamond mode), depending on the D/t ratio (diameter -thickness) [16]. Experiments have shown that tubes with D/t < 80 and rigid-perfectly plastic (low strainhardening) deform in concertina mode and the tubes with higher D/t (> 80) and sensitive to strain-hardening will deform into diamond mode [16][17][18][19]. Andrews et al [20] further gave a guideline to predict the mode of deformation based on tube length to wall thickness ratio (L/t) and diameter to wall thickness ratio (D/t).…”

mentioning

confidence: 99%

“…Andrews et al [20] further gave a guideline to predict the mode of deformation based on tube length to wall thickness ratio (L/t) and diameter to wall thickness ratio (D/t). Few studies also focussed on the switch of deformation pattern from concertina mode to diamond mode and mixed collapse of diamond and concertina modes [18,[20][21][22]. Hsu and Jones [22] observed tearing of the circular tube wall during the switch of deformation pattern from concertina to diamond mode.…”

mentioning

confidence: 99%

“…Hsu and Jones [22] observed tearing of the circular tube wall during the switch of deformation pattern from concertina to diamond mode. Pugsley [18] concluded that the transition from concertina to diamond mode occurs for D/t = 91. The influence of other parameters on the switching of deformation patterns such as heat treatment and end constraints was also studied in ref.…”

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Low velocity axial impact crushing performance of empty recyclable metal beverage cans

Palanivelu

Paepegem

Degrieck

et al. 2011

International Journal of Impact Engineering

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This paper focuses on the axial impact crushing behaviour of recyclable empty metal beverage cans available in the market. The idea is to make a macro-foam (sacrificial cladding structure) out of these cans to protect the main load bearing members of civil engineering structures from the air blast load. Axial drop weight tests have been conducted to understand the crushing characteristics and the corresponding energy absorption of a single empty beverage can in detail. To conduct such tests a small-scale drop weight test set-up has been designed and manufactured. The deformation mechanisms and the corresponding energy absorption of the beverage cans were studied in detail for different initial impact velocities (1.4 m/s, 2.2 m/s, 3.1 m/s. 3.8 m/s, 4.4 m/s and 4.9 m/s). Furthermore, an analytical model is proposed to calculate the crushing parameters of empty metal beverage cans. The results from the analytical model are compared and validated with the experimental results.

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On the Crumpling of Thin Tubular Struts

Cited by 64 publications

References 0 publications

Crushing analysis of rotationally symmetric plastic shells

Crushing analysis of rotationally symmetric plastic shells

Axial crushing of aluminum extrusions filled with PET foam and GFRP. An experimental investigation

Low velocity axial impact crushing performance of empty recyclable metal beverage cans

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