Mode I crack propagation in hydrogels is step wise

F. Pizzocolo; J.M.R.J. Huyghe; K. Ito

doi:10.1016/j.engfracmech.2012.10.018

Mode I crack propagation in hydrogels is step wise

F. Pizzocolo, J.M.R.J. Huyghe, K. Ito

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Abstract

Cracking is one of the critical issues in the design of hydrogels. Numerical simulations on porous materials indicated that cracks may not propagate smoothly but in a step-wise fashion. The purpose of this work was to verify if this was the case and to characterize crack propagation. Performing single edge notch tests, in water and in air, we demonstrated that under tensile loading a crack indeed propagates in a step-wise fashion. Moreover, we found that the stiffness of the hydrogel is related linearly with the lengths of the steps and hyperbolically with the time that each step needs to propagate and break. (C) 2012 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	72-79
Number of pages	8
Journal	Engineering Fracture Mechanics
Volume	97
DOIs	https://doi.org/10.1016/j.engfracmech.2012.10.018
Publication status	Published - 2013

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title = "Mode I crack propagation in hydrogels is step wise",

abstract = "Cracking is one of the critical issues in the design of hydrogels. Numerical simulations on porous materials indicated that cracks may not propagate smoothly but in a step-wise fashion. The purpose of this work was to verify if this was the case and to characterize crack propagation. Performing single edge notch tests, in water and in air, we demonstrated that under tensile loading a crack indeed propagates in a step-wise fashion. Moreover, we found that the stiffness of the hydrogel is related linearly with the lengths of the steps and hyperbolically with the time that each step needs to propagate and break. (C) 2012 Elsevier Ltd. All rights reserved.",

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AU - Huyghe, J.M.R.J.

AU - Ito, K.

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AB - Cracking is one of the critical issues in the design of hydrogels. Numerical simulations on porous materials indicated that cracks may not propagate smoothly but in a step-wise fashion. The purpose of this work was to verify if this was the case and to characterize crack propagation. Performing single edge notch tests, in water and in air, we demonstrated that under tensile loading a crack indeed propagates in a step-wise fashion. Moreover, we found that the stiffness of the hydrogel is related linearly with the lengths of the steps and hyperbolically with the time that each step needs to propagate and break. (C) 2012 Elsevier Ltd. All rights reserved.

U2 - 10.1016/j.engfracmech.2012.10.018

DO - 10.1016/j.engfracmech.2012.10.018

M3 - Article

SN - 0013-7944

VL - 97

SP - 72

EP - 79

JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

ER -

Mode I crack propagation in hydrogels is step wise

Abstract

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