Mechanical properties of metal honeycomb sandwich panel

Guang Ping Zou; Jie Lu; Jun Liang

doi:10.1117/12.839325

Mechanical properties of metal honeycomb sandwich panel

Guang Ping Zou^*, Jie Lu, Jun Liang

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

A Co-based superalloy honeycomb thermal protection system (TPS) panel has been fabricated. A series of strength tests such as the lateral tensile strength and flatwise compressive properties were carried out at room temperature. The tensile ultimate strength is higher than 59MPa, the flatwise compressive strength is higher than 15MPa. Two optical non-contact methods are introduced in this work. Longitudinal strains of a lateral tensile specimen were obtained using digital speckle correlation method. The equivalent elastic modulus was calculated further. Debonding defects between honeycomb core and face sheets were detected by ESSPI. The size and approximate location were decided real-time. The results show these two methods are feasible.

Original language	English
Article number	73754Y
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	7375
DOIs	https://doi.org/10.1117/12.839325
Publication status	Published - 2009
Externally published	Yes
Event	International Conference on Experimental Mechanics 2008, ICEM 2008 - Nanjing, China Duration: 8 Nov 2008 → 8 Nov 2008

Keywords

Debonding detection
Digital speckle correlation method
ESSPI
Elastic modulus
MTPS
Mechanical properties
Searching template
Sub-pixel arithmetic

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10.1117/12.839325

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title = "Mechanical properties of metal honeycomb sandwich panel",

abstract = "A Co-based superalloy honeycomb thermal protection system (TPS) panel has been fabricated. A series of strength tests such as the lateral tensile strength and flatwise compressive properties were carried out at room temperature. The tensile ultimate strength is higher than 59MPa, the flatwise compressive strength is higher than 15MPa. Two optical non-contact methods are introduced in this work. Longitudinal strains of a lateral tensile specimen were obtained using digital speckle correlation method. The equivalent elastic modulus was calculated further. Debonding defects between honeycomb core and face sheets were detected by ESSPI. The size and approximate location were decided real-time. The results show these two methods are feasible.",

keywords = "Debonding detection, Digital speckle correlation method, ESSPI, Elastic modulus, MTPS, Mechanical properties, Searching template, Sub-pixel arithmetic",

author = "Zou, {Guang Ping} and Jie Lu and Jun Liang",

year = "2009",

doi = "10.1117/12.839325",

language = "English",

volume = "7375",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

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publisher = "SPIE",

note = "International Conference on Experimental Mechanics 2008, ICEM 2008 ; Conference date: 08-11-2008 Through 08-11-2008",

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TY - JOUR

T1 - Mechanical properties of metal honeycomb sandwich panel

AU - Zou, Guang Ping

AU - Lu, Jie

AU - Liang, Jun

PY - 2009

Y1 - 2009

N2 - A Co-based superalloy honeycomb thermal protection system (TPS) panel has been fabricated. A series of strength tests such as the lateral tensile strength and flatwise compressive properties were carried out at room temperature. The tensile ultimate strength is higher than 59MPa, the flatwise compressive strength is higher than 15MPa. Two optical non-contact methods are introduced in this work. Longitudinal strains of a lateral tensile specimen were obtained using digital speckle correlation method. The equivalent elastic modulus was calculated further. Debonding defects between honeycomb core and face sheets were detected by ESSPI. The size and approximate location were decided real-time. The results show these two methods are feasible.

AB - A Co-based superalloy honeycomb thermal protection system (TPS) panel has been fabricated. A series of strength tests such as the lateral tensile strength and flatwise compressive properties were carried out at room temperature. The tensile ultimate strength is higher than 59MPa, the flatwise compressive strength is higher than 15MPa. Two optical non-contact methods are introduced in this work. Longitudinal strains of a lateral tensile specimen were obtained using digital speckle correlation method. The equivalent elastic modulus was calculated further. Debonding defects between honeycomb core and face sheets were detected by ESSPI. The size and approximate location were decided real-time. The results show these two methods are feasible.

KW - Debonding detection

KW - Digital speckle correlation method

KW - ESSPI

KW - Elastic modulus

KW - MTPS

KW - Mechanical properties

KW - Searching template

KW - Sub-pixel arithmetic

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U2 - 10.1117/12.839325

DO - 10.1117/12.839325

M3 - Conference article

AN - SCOPUS:77049095605

SN - 0277-786X

VL - 7375

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

M1 - 73754Y

T2 - International Conference on Experimental Mechanics 2008, ICEM 2008

Y2 - 8 November 2008 through 8 November 2008

ER -

Mechanical properties of metal honeycomb sandwich panel

Abstract

Keywords

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