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  1. ME7

    Shock Analysis using Marc Mentat

    Has anyone done a shock analysis on a structure or projectile using a haversine with time and g loading using Marc Mentat? Thank you
  2. ME7

    acrylic urethane- mechanical and thermal properties (loctite 3211 UV)

    Does anyone know the thermal and mechanical properties of Loctite UV 3211 (cured)? Setting up a thermal stress model. The tech support from Loctite does not provide such information, apparently. I tried doing a google search for acrylated urethane aka AA 3211. I would greatly appreciate anyone...
  3. ME7

    HYPNUE vs Automation Studio

    I am interested in seeking one's experience between these two software simulation packages. If you had to choose one or the other, which one is most user friendly, covers the most automation designs senerio and high productivity for meeting customer design turn around. Thank you for input. ME7
  4. ME7

    electrical contact resistance between graphite and copper

    Hi Folks, Does anyone have any data on electrical contact resistance for graphite to copper as well as graphite to graphite. The surface finish is spec out to 1.6 surface finish for graphite and 0.8 surface for the copper. Meaning smooth surfaces for low psi contact of 27 psi. Thank you for...
  5. ME7

    Contact Resistance conversion from electrical to mechanical

    Hi Folks, I am interested in knowing if anyone has experience converting electrical resistance (ohms/area) to thermal conductance (Power/(area*K)) or (W/m^2K). I need to this mechanical world for performing thermal simulations and I have found a chart on contact pressure as function of...
  6. ME7

    Stress Strain Data for Rubber Modeling

    Thank you for your reply. Yes I plan on using Mooney Rivlin provided no issues with this data. Regards, Rick
  7. ME7

    Stress Strain Data for Rubber Modeling

    Hi, I was given the load vs displacement of a rubber dog bone sample off of an instrom tester. FEA SW such as Abaqusa and SoildWorks requires the stress strain data. My question is can I simple divide the original undeformed cross sectional area into the Load to obtain the stress. Similarly for...
  8. ME7

    Recommendation on attaching pp film to pp part

    I am looking for a recommendation on how to attach a polypropylene fim to PP part. The PP part is a cylinder and wish to close the end off by making it a hermatically sealed to pp film. Can you heat stake or is it called heat sealing to melt pp film to the pp part? Recommendation of a company to...
  9. ME7

    Medical/Food Grade Films Recommedation

    Thank you for the help! Best regards,
  10. ME7

    Medical/Food Grade Films Recommedation

    I am looking for a medical grade film that can be heat stake to polypropylene (PP) material or heat sealed. Film material can have a metallic layer for mvtr characteristic. Another film material, can be food grade for example what is foil seal on yogurt containers. Thank you for help.
  11. ME7

    Can Ansys resolve structual deformation down to 0.1 nm

    Hi, I am working a new project that involves deformation of glass from given loads on the order of 0.1 to 1 nanometer. Does Ansys or Cosmos have the capability to capture this level of resolution? Thank you for the help!
  12. ME7

    Tolerance Analysis RSS and GDT

    Looking for a good reference with examples on RSS and GDT that show the hand calculations? Any suggestions? Thank you
  13. ME7

    Helical Gears - Physics of why smoother and quieter

    Makes great sense. Thank you for your time and help. ME7
  14. ME7

    Helical Gears - Physics of why smoother and quieter

    I am trying to understand in further detail why helical gears are smoother and quieter over spur gears. What is the physics that differentiates "smoother" and "quieter"? Curious because many printer designs use helical gears over spur gears supposedly for better motion quality. Please help...
  15. ME7

    Free Body Diagram of Grinding wheel against a spinning part

    I have a question concerning the grinding of a rotating metal shaft. The grinding wheel is loaded against the spinning metal shaft but the grinding wheel is spinning faster than the metal shaft to polish the surface of the metal shaft. In setting up the free body diagram to determine the kinetic...
  16. ME7

    How to apply a moment in ANSYS?

    Thank you for first taking the time to respond to my question. I believe the couple suggestion is along a similar thought that I had. I guess from an academic standpoint that money spent on Ansys license and for a product being on the market as long as it has, should be able to accomodate such a...
  17. ME7

    How to apply a moment in ANSYS?

    I am trying to model a bracket with holes with applied moments. First I am looking for an example tutorial in how to do this via the GUI interface. For example, I have a solid bracket that is L shape where top of the L has hole in it. In the center of the hole I would like to apply the moment...
  18. ME7

    Time to fill a capillary tube

    Does any one know how to calculate the time in which a tube will refill via capillary action?
  19. ME7

    Calculate the time of capillary to fill a tube

    Does any one know a simple way to calculate the response time for a tube to fill via capillary action?
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