Dear Friends, I am a Master's Student from India, I am new to simulation, My project requires me to simulate a drop test experiment on a composite specimens, The issue i am facing is that since my lack of experience i am not able to choose the right material and do not know how to perform the simulation. While i was checking in literatures i was able to notice that use of MAT 058 is recommended. The doubts i am having is that
1.should i enter matrix materials as a separate layer or should i enter them as a part of the fiber layer with a certain percentages values, i am performing on Natural fibers mainly banana fibers and epoxy resin.
2.how to give the interaction between the intender and composites , and be able to capture accurate results.
PLEASE REQUESTING HELP FROM ANY PROFESSIONAL OUT THERE.
Working with composite materials is not a trivial thing for somebody new to simulation.
Here’s a list of resources that you can use to help get started on your different options. If I were you, I would start by getting your simulation set up and running correctly with a simple material model like *Mat_elastic, before attempting to define you composite.
Hey, Thanks for the reply, can you send the list of resources i can use to get started ? any idea on where i can get good tutorials for drop test with correct flow steps ?
@john of course my mistake
https://feassistant.com/forums/ls-dyna/composite-material-help/#post-13
Looks like there’s a couple on YouTube. I’d focused on making it as simple as possible. If you know the drop tower height you can calculate the velocity at impact by hand, and prescribe that to your sim with *Initial_velocity. Just position the impactor and composite part close together an either constrain the composite part vertical motion or add a constrained contact surface below.