Effect of Initial Debond Crack Location on the Face/core Debond Fracture Toughness

Amilcar Quispitupa; Christian Berggreen

doi:10.1051/epjconf/20100624004

Effect of Initial Debond Crack Location on the Face/core Debond Fracture Toughness

Amilcar Quispitupa
, Christian Berggreen

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Abstract

This paper studies the effect of initial crack location on the face/core debond fracture toughness under different mixed mode loading conditions. The mixed mode loading at the crack tip is defined in terms of the mode-mixity. In order to achieve the desired initial debond crack location, a pre-cracking technique is developed, where the mode-mixity, number of cycles, crack increment and load level are accurately controlled. Results show that the debond fracture resistance of foam-cored sandwich specimens depends on parameters such as loading condition (mode-mixity), core and face properties, as well as initial debond crack location. Lower fracture toughness values were measured for specimens with the initial crack location in the face laminate.

Original language	English
Journal	E P J Web of Conferences
Volume	6
Pages (from-to)	24004
ISSN	2100-014X
DOIs	https://doi.org/10.1051/epjconf/20100624004
Publication status	Published - 2010
Event	14th International Conference on Experimental Mechanics - Poitiers, France Duration: 4 Jul 2010 → 9 Jul 2010 Conference number: 14

Conference

Conference	14th International Conference on Experimental Mechanics
Number	14
Country/Territory	France
City	Poitiers
Period	04/07/2010 → 09/07/2010

Bibliographical note

This is an Open Access article distributed under the terms of the Creative Commons Attribution-Noncommercial License 3.0, which permits unrestricted use, distribution, and reproduction in any noncommercial medium, provided the original work is properly cited.

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@inproceedings{e20127b7df8a4a639615a23607e18c02,

title = "Effect of Initial Debond Crack Location on the Face/core Debond Fracture Toughness",

abstract = "This paper studies the effect of initial crack location on the face/core debond fracture toughness under different mixed mode loading conditions. The mixed mode loading at the crack tip is defined in terms of the mode-mixity. In order to achieve the desired initial debond crack location, a pre-cracking technique is developed, where the mode-mixity, number of cycles, crack increment and load level are accurately controlled. Results show that the debond fracture resistance of foam-cored sandwich specimens depends on parameters such as loading condition (mode-mixity), core and face properties, as well as initial debond crack location. Lower fracture toughness values were measured for specimens with the initial crack location in the face laminate.",

author = "Amilcar Quispitupa and Christian Berggreen",

note = "This is an Open Access article distributed under the terms of the Creative Commons Attribution-Noncommercial License 3.0, which permits unrestricted use, distribution, and reproduction in any noncommercial medium, provided the original work is properly cited.; 14th International Conference on Experimental Mechanics, ICEM14 ; Conference date: 04-07-2010 Through 09-07-2010",

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AU - Quispitupa, Amilcar

AU - Berggreen, Christian

N1 - Conference code: 14

PY - 2010

Y1 - 2010

N2 - This paper studies the effect of initial crack location on the face/core debond fracture toughness under different mixed mode loading conditions. The mixed mode loading at the crack tip is defined in terms of the mode-mixity. In order to achieve the desired initial debond crack location, a pre-cracking technique is developed, where the mode-mixity, number of cycles, crack increment and load level are accurately controlled. Results show that the debond fracture resistance of foam-cored sandwich specimens depends on parameters such as loading condition (mode-mixity), core and face properties, as well as initial debond crack location. Lower fracture toughness values were measured for specimens with the initial crack location in the face laminate.

AB - This paper studies the effect of initial crack location on the face/core debond fracture toughness under different mixed mode loading conditions. The mixed mode loading at the crack tip is defined in terms of the mode-mixity. In order to achieve the desired initial debond crack location, a pre-cracking technique is developed, where the mode-mixity, number of cycles, crack increment and load level are accurately controlled. Results show that the debond fracture resistance of foam-cored sandwich specimens depends on parameters such as loading condition (mode-mixity), core and face properties, as well as initial debond crack location. Lower fracture toughness values were measured for specimens with the initial crack location in the face laminate.

U2 - 10.1051/epjconf/20100624004

DO - 10.1051/epjconf/20100624004

M3 - Conference article

SN - 2100-014X

VL - 6

SP - 24004

JO - E P J Web of Conferences

JF - E P J Web of Conferences

T2 - 14th International Conference on Experimental Mechanics

Y2 - 4 July 2010 through 9 July 2010

ER -

Effect of Initial Debond Crack Location on the Face/core Debond Fracture Toughness

Abstract

Conference

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