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Longitudinal Sealings in Beverage Packages - Experimental Testing and Numerical Parameter Studies

Nilsson, Magnus (2005) VSM820
Civil Engineering (M.Sc.Eng.)
Structural Mechanics
Abstract (Swedish)
In this work, the mechanical behavior of longitudinal sealings in paper based beverage packages have been investigated trough experimental tests and Finite Element simulations. The mechanical performance of the longitudinal sealing is of great interest when developing and improving beverage packages. Choosing a suitable sealing type is both a performance and cost issue, therefore is better knowledge of the mechanical behavior of great interest.

Experimental tension tests were accomplished on various longitudinal sealings in order to determine the response of the sealing. FE-simulations of the sealings with the 3DM employed were modelled in ABAQUS and further on were numerical parametric studies with focus on geometry and material... (More)
In this work, the mechanical behavior of longitudinal sealings in paper based beverage packages have been investigated trough experimental tests and Finite Element simulations. The mechanical performance of the longitudinal sealing is of great interest when developing and improving beverage packages. Choosing a suitable sealing type is both a performance and cost issue, therefore is better knowledge of the mechanical behavior of great interest.

Experimental tension tests were accomplished on various longitudinal sealings in order to determine the response of the sealing. FE-simulations of the sealings with the 3DM employed were modelled in ABAQUS and further on were numerical parametric studies with focus on geometry and material properties performed. The simulations gave quite accurate predictions of the initial mechanical behavior and the plastic hardening when the 3DM was employed, but the ultimate strength was in some cases difficult to capture.

The weak region when a package sealing is subjected to loading is the paperboard and not the actual sealing. Stresses in the thickness direction and shear stresses initiate a crack in the paperboard, which then propagates in the length dimension and eventually causes failure in the paperboard. A new type of sealing, the edge to edge sealing, was studied with FE-simulations in ABAQUS. This sealing differs from the existing sealings by not being an overlap sealing. Stresses do not occur in the same extension in the thickness direction in an edge to edge sealing as in an overlap sealing, due to the lack of rotation of the symmetric cross section. Therefore it is possible for the edge to edge sealing to be subjected to higher loads. (Less)
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author
Nilsson, Magnus
supervisor
organization
course
VSM820
year
type
H3 - Professional qualifications (4 Years - )
subject
report number
TVSM-5134
ISSN
0281-6679
language
English
id
3566778
date added to LUP
2013-08-05 14:44:35
date last changed
2013-10-07 11:42:20
@misc{3566778,
  abstract     = {In this work, the mechanical behavior of longitudinal sealings in paper based beverage packages have been investigated trough experimental tests and Finite Element simulations. The mechanical performance of the longitudinal sealing is of great interest when developing and improving beverage packages. Choosing a suitable sealing type is both a performance and cost issue, therefore is better knowledge of the mechanical behavior of great interest.

Experimental tension tests were accomplished on various longitudinal sealings in order to determine the response of the sealing. FE-simulations of the sealings with the 3DM employed were modelled in ABAQUS and further on were numerical parametric studies with focus on geometry and material properties performed. The simulations gave quite accurate predictions of the initial mechanical behavior and the plastic hardening when the 3DM was employed, but the ultimate strength was in some cases difficult to capture.

The weak region when a package sealing is subjected to loading is the paperboard and not the actual sealing. Stresses in the thickness direction and shear stresses initiate a crack in the paperboard, which then propagates in the length dimension and eventually causes failure in the paperboard. A new type of sealing, the edge to edge sealing, was studied with FE-simulations in ABAQUS. This sealing differs from the existing sealings by not being an overlap sealing. Stresses do not occur in the same extension in the thickness direction in an edge to edge sealing as in an overlap sealing, due to the lack of rotation of the symmetric cross section. Therefore it is possible for the edge to edge sealing to be subjected to higher loads.},
  author       = {Nilsson, Magnus},
  issn         = {0281-6679},
  language     = {eng},
  note         = {Student Paper},
  title        = {Longitudinal Sealings in Beverage Packages - Experimental Testing and Numerical Parameter Studies},
  year         = {2005},
}