Advanced

Mechanical Tests and Numerical Simulations of Pressurised Thin Membrane

Wilander, Hanna LU (2017) In ISRN LUTFD2/TFHF-17/5220-SE(1-71) FHL820 20171
Solid Mechanics
Abstract
During manufacturing of beverage packages, the pre-laminated hole get subjected to various mechanical loading. Thus needs a greater comprehension and knowledge of its behaviour to understand packaging materials. In this Master's thesis, the behaviour of the thin membranes consisting of polymer and aluminium foil has been studied when subjected to pressure. Mechanical, visual, as well as virtual tests, have been performed to establish what effects the crack initiation.

Through mechanical experiments it was seen that the crack initiates between the edge of the membrane and paperboard. Thinner membranes had a tendency to crack before the thicker ones. Visual experiments revealed that the structure, air pockets and thickness of the layers... (More)
During manufacturing of beverage packages, the pre-laminated hole get subjected to various mechanical loading. Thus needs a greater comprehension and knowledge of its behaviour to understand packaging materials. In this Master's thesis, the behaviour of the thin membranes consisting of polymer and aluminium foil has been studied when subjected to pressure. Mechanical, visual, as well as virtual tests, have been performed to establish what effects the crack initiation.

Through mechanical experiments it was seen that the crack initiates between the edge of the membrane and paperboard. Thinner membranes had a tendency to crack before the thicker ones. Visual experiments revealed that the structure, air pockets and thickness of the layers had a great impact on the placement of the crack initiation.

The program ABAQUS/Explicit was used for virtual analysis of a "real" mesh created from a CT-scan of the membranes. These analyses revealed that the fracture strain for ductile damage is higher for aluminium foil when it is included in a laminate of polymer. Furthermore, the geometry of the membrane has a large impact on the placement of the crack. (Less)
Popular Abstract
On most beverage packages containing a cap a very important thin membrane exists. This membrane has a great influence of the overall structure of the material. A deeper knowledge of this membrane has been developed to further optimise the structure to reduce waste.
Please use this url to cite or link to this publication:
author
Wilander, Hanna LU
supervisor
organization
course
FHL820 20171
year
type
H3 - Professional qualifications (4 Years - )
subject
keywords
FE-simulations, AQABUS/Explicit, thin membranes, bulge-test, CT-scan, Packaging Material
publication/series
ISRN LUTFD2/TFHF-17/5220-SE(1-71)
report number
LUTFD2/TFHF-17/5220-SE
language
English
id
8925356
date added to LUP
2017-09-28 09:23:28
date last changed
2017-09-28 09:23:28
@misc{8925356,
  abstract     = {During manufacturing of beverage packages, the pre-laminated hole get subjected to various mechanical loading. Thus needs a greater comprehension and knowledge of its behaviour to understand packaging materials. In this Master's thesis, the behaviour of the thin membranes consisting of polymer and aluminium foil has been studied when subjected to pressure. Mechanical, visual, as well as virtual tests, have been performed to establish what effects the crack initiation. 
 
Through mechanical experiments it was seen that the crack initiates between the edge of the membrane and paperboard. Thinner membranes had a tendency to crack before the thicker ones. Visual experiments revealed that the structure, air pockets and thickness of the layers had a great impact on the placement of the crack initiation. 
 
The program ABAQUS/Explicit was used for virtual analysis of a "real" mesh created from a CT-scan of the membranes. These analyses revealed that the fracture strain for ductile damage is higher for aluminium foil when it is included in a laminate of polymer. Furthermore, the geometry of the membrane has a large impact on the placement of the crack.},
  author       = {Wilander, Hanna},
  keyword      = {FE-simulations,AQABUS/Explicit,thin membranes,bulge-test,CT-scan,Packaging Material},
  language     = {eng},
  note         = {Student Paper},
  series       = {ISRN LUTFD2/TFHF-17/5220-SE(1-71)},
  title        = {Mechanical Tests and Numerical Simulations of Pressurised Thin Membrane},
  year         = {2017},
}