Assignment 5
Obj:To perform the simulation in hyperview by considering the several conditions and plot the internal energy,kinetic energy,contact energy,hourglass energy and the rigs wall forces in the hyper view and compare the various conditions.
Procedure:
*open the hyper mesh and select to import geometry and and browse the file run the simulation.
* open hyper view and browse the h3d anim file and apply for it.
*Select the contour and select for the von mises energy by selecting the simple averaging method.
*Now browse for the sub window and open the hyper graph and plot the internal energy,hourglass energy,kinetic energy, contact energy by uploading the time history file.
*Other sub window plot the rigid walk forces that are normal tangent and resultant forces by uploading the time history file.
*For the case 2 open the model browser and contact interface card and change the Inact-6 save it and run the simulation in the hyper view and plot the same energy and forces as mentioned above.
*Case3:open the model browser from the hypercrash create the contact interface card of type 11and select the parts from the crash tube for master and slave and save other values similar to that of type 7 and save the card and export the file.
*open the hyper mesh and browse the inact file and run the simulation open the hyper view and upload the anim file and mark the von mises forces by simple averaging method,plot the rigid wall forces and energies.
*case4:open hyper mesh import the crash tube fileand using the align node option remove the notches and run the simulation of the model and similarly to the above condition mark all the rigid wall forces and energies.
*Case5:open hypermesh and create notch at the center and run the simulation and then open hyper view and mark the von mises forces by simple average method and plot the energies and forces as mentioned in above condition.
*Case6:open the hyper mesh import the rad file and crash tube will be imported create notches at either of the edges and open the hyper view and with anim file apply for von mises by simple average method and open the hyper graph plot the energies and the rigid wall forces as above.
Rigid wall forces:
Normal force:
For type_11 contact interface the normal force is less than compared to remaining other cases because of the edge to edge contact type and the plotting of the graph even have many fluctuations.
Tangent force:
The tangent force is impacted due to the number of notches so the less number of notches on them reprent for the more tangent force but specially for type_11 contact the tangent force is less compared toother cases where the interface is type_7 interface.
Rigid wall forces:
Resultant force:
*For the crash tube that are free from notches has more resultant forces so far case4 it has more resultant rigid wall forces but if there is material change from type7 to type11 the resultant force is less because of edge to edge contact
*The above picture is for reference for describing that crash tube with less number of notches have more resultant rigid wall forces of type7 contact interface when compared to type11 contact interface.
Contact force:
The crash tube with no notches have more contact forces and type7 have more contact forces compared to type 11 the above plotting can be reffered for describing that crash tube with no notches have more contact forces than to the edge to edge contact interface
*The contact energy also depicts as the sudden incline in the energy and later declines and becomes stable.
Internal enenrgy is impacted because of notches the less number of notches causes high internal energy and type11 contact has less internal energy because of the edge to edge contact when compared with type7 contact.
Internal energy:
*The impact of the internal energy is more for the type7 contact interface with no notches on the crash tube depicts high internal energy when internal energy when compared to the other condition.
*The change in internal energy is because of the impact of the relative position that is the change in elemental nodal positions when the notches on the crash tube created if the number of notches are created this with impact the nodal position of the elements and the created notches due to their change in relative position causes less internal energy but when compared to type11 contact interface the due to the type11 having surface to surface contact the created internal energy will be low comparatively with the type 7 which is having nice to surface contact interface the self impact occurring between node to surface of type 7 contact interface probably cause to create more internal energy.
case4:Remove both notches
case5:notch in the middle
case6:opposing 2 faces
Results of energies and the forces that are impacted by the notch :
*The number of notches on crash tube is observed to impact several energy and forces the difference of notches caused the variation in the total resultant force acting on the crash tube get varied in exhibiting the total resultant force the crash tube condition with no notches of type7 interface exbhited high resultant rigid wall forces.
Kinetic energy:
*The kinetic energy is high initially for the crash tube during the simulation gradually that declined the impact of kinetic energy for the crash tube having no notches.
Internal energy:'
*The internal energy was low initially and increased to an extent but this is higher for the condition with crash tube having no notches this is due to the relative motion of elemental nodes when compared to form the notches.
violet reprenting for the case3 i.e type_11 contact ineterface
green representing for the case4 i.e type_7 have no notches on the crash tube.
Hour glass energy:
*The hourglass energy is less for the crash tube condition with notches because of the fine mesh of elements and their is no impact on the nodal position so crash tube is less notches have and possess less hourglass energy.
Contact energy:
The contact energy for crash tube with no notches is high than compared to the other conditions of the crash tube which are having notches if the number of notches increase on the crash tube the contact energy is low the behavior of contact energy is like initially its gradually increase and then a step increase and decrease and becomes stable the plotting is referable for observing. the behavior of contact energy in each condition of crash tube.
Conclusion:
*simulations are made based on the conditions described.
*plotting of the internal energy,kinetic energy,contact energy,hour glass energy and rigid wall forces are plotted for the making out the resultants to be observed based on the plotting by considering the each condition.
*creating the type_11 contact interface and comparing the energy and forces impact beween the two contact interfaces is described.
*conditional explanations about the notches and impacts to the enrgy and forces are described by plotting of them in hyper graph.
Note:
This link is provided for the assignment 5 referece if needed.
https://1drv.ms/u/s!Av1WlNmjfvAwhgp1shTY9aENfONi?e=1T6rTg