WO2023107048A3 - A beam structure with high load carrying and energy absorbing capability - Google Patents

A beam structure with high load carrying and energy absorbing capability Download PDF

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Publication number
WO2023107048A3
WO2023107048A3 PCT/TR2022/051316 TR2022051316W WO2023107048A3 WO 2023107048 A3 WO2023107048 A3 WO 2023107048A3 TR 2022051316 W TR2022051316 W TR 2022051316W WO 2023107048 A3 WO2023107048 A3 WO 2023107048A3
Authority
WO
WIPO (PCT)
Prior art keywords
region
beam structure
load carrying
high load
energy absorbing
Prior art date
Application number
PCT/TR2022/051316
Other languages
French (fr)
Other versions
WO2023107048A2 (en
Inventor
Kenan GENEL
Mehmet Fatih KAHRAMAN
Original Assignee
Sakarya Universitesi Rektorlugu
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from TR2021/018908 external-priority patent/TR2021018908A2/en
Application filed by Sakarya Universitesi Rektorlugu filed Critical Sakarya Universitesi Rektorlugu
Publication of WO2023107048A2 publication Critical patent/WO2023107048A2/en
Publication of WO2023107048A3 publication Critical patent/WO2023107048A3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
    • B64C1/06—Frames; Stringers; Longerons ; Fuselage sections
    • B64C1/061—Frames
    • B64C1/062—Frames specially adapted to absorb crash loads

Abstract

The present invention relates to a beam structure with high load carrying and energy absorbing capability, particularly applicable in land and aircraft, where lightweight, high load carrying capacity, and deformation control are important in structural elements acting as beams. The section of the said beam structure (2) comprises an outer part comprising four outer walls (6-9); at least one inner part consisting of at least three regions which are located between the said walls (6-9) and exhibit different mechanical behavior, comprising at least one third region (3) comprising multiple auxetic cells with negative Poisson's ratio, which do not deform in the lateral direction (D1 ) with increasing deformation (D2), at least one fifth region (5) comprising multiple auxetic cells with a negative Poisson's ratio, showing a tendency to expand (D3) under bending stress, and at least one fourth region (4) comprising at least one octagonal cell with a high moment of inertia located between the third region (3) and the fifth region (5) so that the transitions between the third region (3) and the fifth region (5) are smooth and the cell arms remain in the same direction.
PCT/TR2022/051316 2021-12-01 2022-11-18 A beam structure with high load carrying and energy absorbing capability WO2023107048A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2021018908 2021-12-01
TR2021/018908 TR2021018908A2 (en) 2021-12-01 A BEAM STRUCTURE WITH HIGH LOAD CARRYING AND ENERGY ABSORPTION CAPABILITY

Publications (2)

Publication Number Publication Date
WO2023107048A2 WO2023107048A2 (en) 2023-06-15
WO2023107048A3 true WO2023107048A3 (en) 2023-08-03

Family

ID=86731432

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2022/051316 WO2023107048A2 (en) 2021-12-01 2022-11-18 A beam structure with high load carrying and energy absorbing capability

Country Status (1)

Country Link
WO (1) WO2023107048A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104763772A (en) * 2015-03-31 2015-07-08 华南理工大学 Buffering and energy absorbing structure
CN109970021A (en) * 2017-12-28 2019-07-05 财团法人工业技术研究院 Three-dimensional structure
CN110516317A (en) * 2019-08-05 2019-11-29 三峡大学 A kind of nested type class honeycomb sandwich construction
CN112918022A (en) * 2019-12-06 2021-06-08 同济大学 Negative Poisson ratio-honeycomb type composite energy absorption structure with planar semi-circumferential forward interface

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104763772A (en) * 2015-03-31 2015-07-08 华南理工大学 Buffering and energy absorbing structure
CN109970021A (en) * 2017-12-28 2019-07-05 财团法人工业技术研究院 Three-dimensional structure
CN110516317A (en) * 2019-08-05 2019-11-29 三峡大学 A kind of nested type class honeycomb sandwich construction
CN112918022A (en) * 2019-12-06 2021-06-08 同济大学 Negative Poisson ratio-honeycomb type composite energy absorption structure with planar semi-circumferential forward interface

Also Published As

Publication number Publication date
WO2023107048A2 (en) 2023-06-15

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