A simplified determination of theJ-integral for paper

Yuhara, Tetsuo; Kortschot, Mark T.

doi:10.1007/bf01159839

Cited by 17 publications

(5 citation statements)

References 20 publications

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“…It is well established that the measured strength of any material will be influenced to some extent by the geometry of the sample tested. We limit our discussion here to the failure of test samples where no flaw is introduced, though note the work of Seth [19] with Page [20], that of Yuhara and Kortschot [21] and that of Wellmar et al [22], all of whom report on the influence of specimen geometry and crack size on various measures of fracture resistance of paper samples with one or two notches.…”

Section: Network Dimensionalitymentioning

confidence: 99%

Competing Weibull and stress-transfer influences on the specific tensile strength of a bonded fibrous network

I'Anson

Sampson

2007

Composites Science and Technology

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Section: Network Dimensionalitymentioning

confidence: 99%

Competing Weibull and stress-transfer influences on the specific tensile strength of a bonded fibrous network

I'Anson

Sampson

2007

Composites Science and Technology

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“…much larger than the apparent crack sizes in the optical images because changes in light transmission only become visible once all the fibers have moved from their initial positions, which occurs long after the fiber or interfiber failure. The details of these methods are important to consider when comparing our results to previous studies of crack growth in paper [25][26][27][28][29][30][31][32][33][34][35][36][37] . A series of threshold levels were evaluated and the influence on crack growth rate was determined: changes in the threshold level caused minor shifts in crack size, but the influence on growth rates was small.…”

Section: Methodsmentioning

confidence: 99%

High-cycle fatigue damage accumulation in paper

Paluskiewicz

Muhlstein

2020

Commun Mater

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The mechanical durability of paper is a key consideration for applications ranging from shipping boxes to disposable medical substrates. Paper commonly experiences fatigue loading in such applications, but a high-cycle fatigue mechanism has not been identified. This research details paper's high-cycle fatigue degradation mechanism. Paper specimens were loaded with monotonically increasing, constant, and sinusoidally varying cyclic stresses, and the resulting tensile, creep, and fatigue damage accumulation rates were compared. The difficulty in defining the size and growth of cracks in paper's cellulosic fiber network were overcome with optically measured strain fields. We found that fatigue damage can accumulate via a fiber fracture mechanism, while ratchetting, creep, and tensile overload damage accumulation occurs due to failure of inter-fiber bonds. We also discovered the synergistic interaction between creep and high-cycle fatigue damage accumulation mechanisms, which is critical for extending the high-cycle fatigue life of paper.

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“…The fracture in paper often propagates after the onset of nonlinearity 10,11,18,19) . Therefore, the Mode I J-integral J I is effective to characterize the fracture mechanics property after the onset of nonlinearity.…”

Section: (D) Fracture Mechanics Theory (Fmt)mentioning

confidence: 99%

Analysis of the Tensile Strength of Copy Paper with a Center Notch Based on Four Strength Theories

Yoshihara

Yoshinobu

Maruta

et al. 2018

J. Soc. Mat. Sci., Japan

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The tensile strength of a copy paper with a center notch was measured. During the test, the loading direction coincided with the cross direction (CD) or the machine direction (MD) of the paper sheet, and the configuration and dimension of the notch were varied. The relationship between the tensile strength and notch dimension was fitted using the following four theories: uniform stress criterion (USC), point stress criterion (PSC), average stress criterion (ASC), and fracture mechanics theory (FMT). Although the effect of loading direction was significant on the relationship between the tensile strength and notch dimension, the effect of notch configuration was not so significant. When the loading direction coincided with the CD of the paper, the PSC and ASC methods were superior to the other two methods for fitting the relationship. In contrast, the PSC and FMT methods were superior to the other two methods for fitting the relationship when the loading direction coincided with the MD.

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A simplified determination of theJ-integral for paper

Cited by 17 publications

References 20 publications

Competing Weibull and stress-transfer influences on the specific tensile strength of a bonded fibrous network

Competing Weibull and stress-transfer influences on the specific tensile strength of a bonded fibrous network

High-cycle fatigue damage accumulation in paper

Analysis of the Tensile Strength of Copy Paper with a Center Notch Based on Four Strength Theories

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