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Ansys Learning Forum › Forums › Discuss Simulation › LS Dyna › Influence of initial stresses on Linear Buckling Analyses › Reply To: Influence of initial stresses on Linear Buckling Analyses

August 28, 2024 at 4:53 pm
fabian.duckhorn
Subscriber

Thank you for your reply, the panel measures 195x195x26mm and is made of two thin metal sheets, modeled with a fully integrated shell element, with a thickness of 0.5mm. One of the facesheets is preformed so that some areas are dented outwards and therefore sticking out. Those  dents are then connected to the second facesheet so they act as a core and hold the distance between the facesheets. 

I have tryed the simulation without the initial stresses and i now got a difference of 2.3%. 

Can you explain what legend you are refering to ? 

I have seen that with ansys mechanical you need to add 1 to the load factore however in ls-dyna i cannot find any information for this. Is this rule also applying to ls-dyna?

Where can i find such information ?Â