Enjoy some moments from the experiments performed by SIMLab Master´s students in the spring of 2021.
Amatul Baki Ayesha Binte Awn Syed (left)and Ingrid Gisnås. Thesis: «Dynamic response of flexible structures subjected to blast loading».
Tameem Karim Pathan. Thesis: «Optimization of extruded aluminium profiles for battery protection in electric cars».
Ola Fjelltun Stensvand (left) and Sigurd Vattekar Sandvoll. Thesis: «Design and modelling of vehicle security barriers».
Øystein Erik Kvist Jacobsen (left) and Vetle Solheim Gjesdal. Thesis: «Projectile impact on plain and reinforced concrete slabs».
The main objective of Jacobsen and Gjesdal´s project is to determine how plain and reinforced concrete plates behave under impact loading, and to validate existing computational methods.
The main aim of Pathan´s project is to establish a finite element-based optimization procedure for the geometry of an extruded aluminium profile used in the crash protection system surrounding the battery casing.
The main objective of Syed and Gisnås´ project is to determine how cantilevers and simple, slender beams behave under blast loading, and to validate to which extent this can be predicted using traditional computational methods.
Sandvoll and Stensvand´s main objectives are to gain knowledge on how security barriers absorb energy during vehicle impact, how such systems could be optimized with respect to energy absorption…
.. and to establish a numerical framework for virtual design of such solutions in LS-DYNA.
They carry out a number of fully instrumented impact tests on different small-scale barrier designs..
In fact, their project is a part of the New Government Building Complex project in Norway.
Statsbygg aims to develop a new type of vehicle security barrier system adapted to the Nordic climate in collaboration with Norwegian industry – and SIMLab..
Ballistic tests. These ogive-nose steel projectiles are ready for doing some impact at concrete plates.
In these tests the effect of rebars on the perforation resistance is of particular interest.
Concrete is a material frequently found in protective structures, especially when weight and space limitations are not present…
.. This makes concrete of particular interest in fortification installations for defence purposes.
The data generated from the tests will be used for validation and verification of some frequently used numerical methods involving impact loading of concrete structures.
In an electrical car, the battery casing and the surrounding crash protection system are typically made from aluminium extrusions.
Owing to geometrical constraints and strict crash requirements, the extruded profiles used in these components are very complex. They have multiple chambers, and high strength and high ductility are important features.
The target is to reduce the geometrical complexity of the extrusion without increasing the weight and reducing the energy absorption capability.
The increased threat of deliberate use of high explosives against civilian targets has resulted in a significant increase in the research activity on blast-loaded structures during the last two decades…
Blast events in urban environments introduce new materials, lightweight and flexible structures to the scope of protective design.
Depending on the blast intensity and the structural properties, the dynamic response of the structure may become significantly different.
The SIMLab Shock Tube Facility will be used, as an alternative to explosive detonations, to expose cantilevers, simple frames and truss structures to blast loading.
Vetle Solheim Gjesdal and Øystein Eirik Kvist Jacobsen in the concrete lab..
.. performing material tests to monitor the compressive and tensile strength development as a function of curing time…
, and for calibration and validation of material models.
This aluminium profile collapsed under the force of 350 kN, or 35 tonnes. Tameem Karim Pathan and engineer Christian Frugone studies the impact.
Vetle Solheim Gjesdal.
Ingrid Gisnås.
Enjoy some moments from the experiments performed by some of SIMLabs Master´s students in the spring of 2021.
