Hi All,
I got a file generated from a CMM machine for measuring some par maters of drilled holes such as circularity and hole size, I also found that it measured perpendicularity (it shows PERP) so I assumed it is perpendicularity. my question is what is the unit usually used for measuring hole...
Hi All,
I did some experiments and I used full factorial and fractional factorial as shown below:
Test 1: 2 factors, 3 levels full factorial 3x3=9 points
Test 2: 4 factors, 3 levels fractional factorial 18 points (High-Low and 2 for center points)
I repeated each test 3 times in total.
would...
Hi All,
how can I represent the feed rate (mm/seconds) as a displacement boundary condition rather than a velocity boundary condition in Abaqus,
I tried using U3 and constant amplitude but it seems I am missing something here.
Cheers
Hi all,
I have been trying to find the mechanical properties of the GLARE fiber metal laminates in order to use them in my 3d model in abaqus, I have managed to find all the S2 glass fiber mechanical properties except for the tensile and compression failure stress in third direction X3t and X3c...
I am trying to mount a circular clamping brackets made of aluminium around a drilling CNC machine spindle , the total weight of the clamping brackets is around 600 grams,I will perform some drilling tests but I am worried that the centrifugal forces made adding this weight on the spindle will...
Hi all,
what are the recommended drilling parameters ( cutting speed and feed rates ) for drilling GLARE material.
can I use similar drilling parameters used for Al2024 , any suggestions ?
Hi all,
I am using Abaqus 6.11-3 and Intel Fortran 11.1.065 and Microsoft visual studio 2008
When I run my subroutine with my model I get the following error message :
Problem during linking - Single Precision Abaqus/Explicit User Subroutines. This error may be due to a mismatch in the...
I have a user subroutine which I found freely available online and I am trying to create a .for (FORTRAN file) out of it and use it with my models, I tried fixing it by removing the errors and warnings but I still get some , I have no experience with programming languages but I really need the...
How can I run the modified job.inp file in Abaqus CAE , every time I make the change inside my input file and then I import the file into Abaqus , it keeps asking me to overwrite the current existing job file and when it does that the lines which I added in my job file are gone.
Hi All,
I am trying to learn some Abaqus simulation about composite damage and subroutine writing , there is a source code file called
uniFiber.for which I am trying to use to practice with it , I looked for it everywhere , all websites say that it can be downloaded from SIMULIA Answer 3123...
I am trying to drill a metal plate with a drill bit , my problem is that when I check the ODB file , the drill only rotates around itself but it does not go down as it supposed to, I defined rotational and z-axis velocities in the boundary conditions but still nothing happens , am I missing...
I am trying to measure the temperature of a drill bit while drilling metals, I intend to pass the thermocouple through the one of its coolant holes , the problem is that the drill will be rotating and the thermocouple should send the temperature reading in a wireless way to the data logger ,is...
Which is the best type of nozzle material to use with liquid nitrogen applications -196 C degrees ( spraying )
and where can I find such nozzles for cryogenic applications?
I am drilling a metal plate and I will be using liquid nitrogen as a coolant to cool the drill bit and the workpiece , the Liquid nitrogen will be supplied externally from a liquid Nitrogen Dewar, I am thinking to use a nozzle at the end of the hose and I was wondering which is the best type of...
I am trying to attach a thermocouple on the bottom surface of an AL2024 plate, basically I a going to drill some holes in my sample and I need to place the thermocouple as close as possible to the hole , i.e. very close to the hole perimeter to measure the temperatures.
any suggestions of which...
I am trying to drill some holes in Aluminium plates AL 2024-T351 ,I am not sure how much coolant to use for that (Pressure,flow rate) , my coolant is Liquid nitrogen but it will be coming out in its gaseous state, is there any equation that relates the amount of coolant pressure and flow rate to...
