Enhancing paper strength by optimizing defect configuration

J.M. Considine; W. Skye; W. Chen; D. Matthys; David W. Vahey; K. Turner; R. Rowlands

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Enhancing paper strength by optimizing defect configuration

Informally Refereed

Authors:

J.M. Considine, W. Skye, W. Chen, D. Matthys, David W. Vahey, K. Turner, R. Rowlands

Year:

2009

Type:

Miscellaneous Publication

Station:

Forest Products Laboratory

Source:

Proceedings of the 2009 SEM Annual Conference and Exposition on Experimental and Applied Mechanics [electronic resource] : June 1-4, 2009, Albuquerque, New Mexico. Bethel, CT : Society for Experimental Mechanics, Inc., c2009: [8] pages.

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Abstract

Poor formation in paper, as denoted by large local variation of mass, tends to reduce maximum tensile strength but has not been well characterized. The effect of grammage variation on tensile strength was studied by introducing carefully placed holes in tensile specimens made of three different paper materials. Previous researchers demonstrated that the point-stress criterion (PSC) accurately predicts failure for paper specimens containing a single hole. Results of comparing the PSC for multiple holes in paper indicated the PSC provided a conservative strength estimate for specimens with multiple holes.

Keywords

Finite element method, holes, fibers, mechanical properties, paper, mechanical properties, testing, deformations, tensile strength, strains, stresses, fiber properties, strength, papermaking

Citation

Considine, J.; Skye, W.; Chen, W.; Matthys, D.; Vahey, D.; Turner, K.; Rowlands, R. 2009. Enhancing paper strength by optimizing defect configuration. In: Proceedings of SEM annual conference and exposition on experimental and applied mechanics. 2009 June 1-4; Albuquerque, NM: Bethel, CT: Society for Experimental Mechanics (www.sem.org). Paper no. 237. 8 p.