Characterizing delamination of fibre composites by mixed mode cohesive laws

Bent F. Sørensen; Torben K. Jacobsen

doi:10.1016/j.compscitech.2008.11.025

Characterizing delamination of fibre composites by mixed mode cohesive laws

Bent F. Sørensen, Torben K. Jacobsen

LM Glasfiber A/S

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

Abstract

A novel method is used for the determination of mixed mode cohesive laws and bridging laws for the characterisation of crack bridging in composites. The approach is based on an application of the J integral. The obtained cohesive laws were found to possess high peak stress values. Mixed mode cohesive stresses were found to depend on both the normal and tangential crack opening displacements. The bridging laws, which are to be used together with a mode mixity dependent crack tip fracture energy, were found to possess relative low bridging stresses; the peak normal bridging stress was approximately 2 MPa during pure Mode I and the maximum shear stress during pure Mode 11 was about 10 MPa. (C) 2008 Elsevier Ltd. All rights reserved.

Original language	English
Journal	Composites Science and Technology
Volume	69
Issue number	3-4
Pages (from-to)	445-456
ISSN	0266-3538
DOIs	https://doi.org/10.1016/j.compscitech.2008.11.025
Publication status	Published - 2009

Keywords

Materials research
Light strong materials for wind turbines and for transportation

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title = "Characterizing delamination of fibre composites by mixed mode cohesive laws",

abstract = "A novel method is used for the determination of mixed mode cohesive laws and bridging laws for the characterisation of crack bridging in composites. The approach is based on an application of the J integral. The obtained cohesive laws were found to possess high peak stress values. Mixed mode cohesive stresses were found to depend on both the normal and tangential crack opening displacements. The bridging laws, which are to be used together with a mode mixity dependent crack tip fracture energy, were found to possess relative low bridging stresses; the peak normal bridging stress was approximately 2 MPa during pure Mode I and the maximum shear stress during pure Mode 11 was about 10 MPa. (C) 2008 Elsevier Ltd. All rights reserved.",

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T1 - Characterizing delamination of fibre composites by mixed mode cohesive laws

AU - Sørensen, Bent F.

AU - Jacobsen, Torben K.

PY - 2009

Y1 - 2009

N2 - A novel method is used for the determination of mixed mode cohesive laws and bridging laws for the characterisation of crack bridging in composites. The approach is based on an application of the J integral. The obtained cohesive laws were found to possess high peak stress values. Mixed mode cohesive stresses were found to depend on both the normal and tangential crack opening displacements. The bridging laws, which are to be used together with a mode mixity dependent crack tip fracture energy, were found to possess relative low bridging stresses; the peak normal bridging stress was approximately 2 MPa during pure Mode I and the maximum shear stress during pure Mode 11 was about 10 MPa. (C) 2008 Elsevier Ltd. All rights reserved.

AB - A novel method is used for the determination of mixed mode cohesive laws and bridging laws for the characterisation of crack bridging in composites. The approach is based on an application of the J integral. The obtained cohesive laws were found to possess high peak stress values. Mixed mode cohesive stresses were found to depend on both the normal and tangential crack opening displacements. The bridging laws, which are to be used together with a mode mixity dependent crack tip fracture energy, were found to possess relative low bridging stresses; the peak normal bridging stress was approximately 2 MPa during pure Mode I and the maximum shear stress during pure Mode 11 was about 10 MPa. (C) 2008 Elsevier Ltd. All rights reserved.

KW - Materials research

KW - Light strong materials for wind turbines and for transportation

KW - Lette stærke materialer til vindmøller og til transport

KW - Materialeforskning

U2 - 10.1016/j.compscitech.2008.11.025

DO - 10.1016/j.compscitech.2008.11.025

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VL - 69

SP - 445

EP - 456

JO - Composites Science and Technology

JF - Composites Science and Technology

IS - 3-4

ER -

Characterizing delamination of fibre composites by mixed mode cohesive laws

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