Denmark, January 2003. - 242c.
Publication Reference Data
PhD Thesis
Technical University of Denmark, Maritime Engineering.
ISBN 87-89502-70-1
Keywords: Ductile fracture, aluminium, crushing, lightweight
structures, energy dissipation, laminates, sandwich
structures, progressive failure, LS-DYNA
Preface
This thesis has been submitted as a partial fulfilment of the requirements for the Danish PhD
degree. The work was performed at the Section of Maritime Engineering at the Technical
University of Denmark, during the period of February 1999 to January 2003, including 11
months of absence. The study was supervised by Associate Professor Bo Cerup Simonsen.
The study was financially supported by the Technical University of Denmark and this support
is gratefully acknowledged.
Special thanks to Bo Cerup Simonsen for creating an excellent workspace, an inspiring
guidance through this project, and for numerous educational discussions. Thanks to J?rgen
Juncher Jensen and Preben Tedrup Pedersen for creating a friendly, inspiring and highly
estimated working environment for the PhD students. Thanks to my colleagues at the section
and especially my officemates Christian Berggreen and Rikard T?oqvist for many valuable
discussions. Thanks to Hugo for preparing drawings.
In a six months’ period, from January 2000 to July 2000, the studies were carried out at
Massachusetts Institute of Technology under supervision of Tomasz Wierzbicki. The stay
at MIT was very inspiring and initiated my work on ductile fracture of metals. Thanks to
Tomasz for enthusiastically introducing me to the world of crashworthiness and fracture and
for many valuable ideas conceing analytical crushing models.
Jesper Urban
Kgs. Lyngby
11 January 2003
Publication Reference Data
PhD Thesis
Technical University of Denmark, Maritime Engineering.
ISBN 87-89502-70-1
Keywords: Ductile fracture, aluminium, crushing, lightweight
structures, energy dissipation, laminates, sandwich
structures, progressive failure, LS-DYNA
Preface
This thesis has been submitted as a partial fulfilment of the requirements for the Danish PhD
degree. The work was performed at the Section of Maritime Engineering at the Technical
University of Denmark, during the period of February 1999 to January 2003, including 11
months of absence. The study was supervised by Associate Professor Bo Cerup Simonsen.
The study was financially supported by the Technical University of Denmark and this support
is gratefully acknowledged.
Special thanks to Bo Cerup Simonsen for creating an excellent workspace, an inspiring
guidance through this project, and for numerous educational discussions. Thanks to J?rgen
Juncher Jensen and Preben Tedrup Pedersen for creating a friendly, inspiring and highly
estimated working environment for the PhD students. Thanks to my colleagues at the section
and especially my officemates Christian Berggreen and Rikard T?oqvist for many valuable
discussions. Thanks to Hugo for preparing drawings.
In a six months’ period, from January 2000 to July 2000, the studies were carried out at
Massachusetts Institute of Technology under supervision of Tomasz Wierzbicki. The stay
at MIT was very inspiring and initiated my work on ductile fracture of metals. Thanks to
Tomasz for enthusiastically introducing me to the world of crashworthiness and fracture and
for many valuable ideas conceing analytical crushing models.
Jesper Urban
Kgs. Lyngby
11 January 2003