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Paperboard Mechanical Properties at Fracture

Tryding, Johan LU and Borgqvist, Eric LU (2019) 2019 International Paper Physics Conference p.57-68
Abstract
Paperboard mechanical properties at fracture during uniaxial tests is an interplay between available elastic energy at fracture and the fracture energy needed to separate the sample into two parts. In a test at a critical specimen length, the load vs. elongation curve immediately drops from a point of instability to zero load, whereas a test at a stable length gives a stable descending load-elongation curve with no discontinuous drop of the load.
Abstract (Swedish)
Paperboard mechanical properties at fracture during uniaxial tests is an interplay between available elastic energy at fracture and the fracture energy needed to separate the sample into two parts. A test at a critical length, the load vs. elongation curve immediately falls from a point of instability to zero load. Whereas, a test at a stable length give a stable descending load-elongation curve with no discontinuous drop of the load.

Tests, less than the stable length, give the cohesive law of the paper. The cohesive law is fully characterized by the tensile strength, the maximum slope of the curve and a parameter represents the shape of the law. From the parameters two length measure are defined giving a ratio 푔. It is shown... (More)
Paperboard mechanical properties at fracture during uniaxial tests is an interplay between available elastic energy at fracture and the fracture energy needed to separate the sample into two parts. A test at a critical length, the load vs. elongation curve immediately falls from a point of instability to zero load. Whereas, a test at a stable length give a stable descending load-elongation curve with no discontinuous drop of the load.

Tests, less than the stable length, give the cohesive law of the paper. The cohesive law is fully characterized by the tensile strength, the maximum slope of the curve and a parameter represents the shape of the law. From the parameters two length measure are defined giving a ratio 푔. It is shown that the ratio 2푔 is the ratio the between the critical length and the stable length.

The finding is applied to an infinite paper sheet with a crack length of 2푎 loaded with a remote loading. It is shown that length of the processes zone is proportional to the critical length of the paperboard and independent of an applied load, at small scale yielding (using the Dugdale model). (Less)
Please use this url to cite or link to this publication:
author
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organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
Proceedings of the International Paper Physics Conference 2019
pages
12 pages
publisher
TAPPI
conference name
2019 International Paper Physics Conference
conference location
Indianapolis, United States
conference dates
2019-05-05 - 2019-05-08
external identifiers
  • scopus:85096682647
ISBN
978-151089394-8
language
English
LU publication?
yes
id
0a72343e-aa31-4277-8fed-bf2390752068
alternative location
https://imisrise.tappi.org/TAPPI/Products/19/PAP/19PAP43.aspx
date added to LUP
2019-06-04 13:35:01
date last changed
2022-04-26 01:19:17
@inproceedings{0a72343e-aa31-4277-8fed-bf2390752068,
  abstract     = {{Paperboard mechanical properties at fracture during uniaxial tests is an interplay between available elastic energy at fracture and the fracture energy needed to separate the sample into two parts. In a test at a critical specimen length, the load vs. elongation curve immediately drops from a point of instability to zero load, whereas a test at a stable length gives a stable descending load-elongation curve with no discontinuous drop of the load.}},
  author       = {{Tryding, Johan and Borgqvist, Eric}},
  booktitle    = {{Proceedings of the International Paper Physics Conference 2019}},
  isbn         = {{978-151089394-8}},
  language     = {{eng}},
  pages        = {{57--68}},
  publisher    = {{TAPPI}},
  title        = {{Paperboard Mechanical Properties at Fracture}},
  url          = {{https://imisrise.tappi.org/TAPPI/Products/19/PAP/19PAP43.aspx}},
  year         = {{2019}},
}