I was wondering if I could change the temperture values in the RTH files of the transient thermal analysis such that any node with temperature above a particular 'X' value can be modified to become the 'X' value
is there someway this could be done right after a particular step is calculated or...
Symmetric half of a Weld plate 18"*3"*3/8"; heat input: heat flux 1.05e8; convection from some surfaces for now.... temperature in Kelvin and properties are in SI units
/PREP7
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ET,1,SOLID70
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MPTEMP,,,,,,,,
MPTEMP,1,273.15
MPTEMP,2,373.15
MPTEMP,3,473.15
MPTEMP,4,573.15...
hi,
I am doing a simulation of Submerged arc welding... using decoupled thermo-mechanical analysis...
I obtained the pretty consistent transient temperature distribution (except for the first set of temperature distribution - probably due to the fact that welding begins at the corner of the...
hi,
i have had trouble locating A36 steel or AISI 1025 steel temperature dependent properties(yield stress, young's modulus, tangent modulus, specific heat,..) at high temperature (melting point) for my welding simulation problem
Could someone please guide me on this
Thanx
Robin
i am try to model a welding simluation.. 18" * 3" * 3/8"
First, I am only considering one-half part of the welding plate.. and the thickness of that one half is constant
the heat is apply on the top surface (which would be my 2D plane)..
Hi,
how can a 2D thermal load (from transient thermal analysis)be transfered to a 3d model for stress and distortion analysis...
I have seen a bunch of research papers using such a method... could someone please advice
thanx
Robin
Hi,
I was trying to model in the latent heat of fusion, how do I get to keep the temperature at melting temp
I tried using enthalphy values, where I appplied for 0 degree, 0 enthalpy and then couple of values around the melting temperature.. it seems to have no effect... maybe because the...
hi,
I am trying to apply heat flux to the surface of an element, would the unit of the value that I enter be
Watt/m^2 of just Watt...
I know heat flux unit definition is W/m^2, but doesnt the Watt applied be divided by the area that it is applied to?
thanx
Robin
drej,
the last couple of times that I was solving the problem, i was using steady state analysis - as it was easier to see if the effects of scalar parameter changes
Summary the modeling
There is a block with dimension .25m x.075m x.00945m... additionally, several smaller blocks with...
To answer Brian's question... if i was not to use the scalar parameter and do the modeling using 1e6 heat flux, it would give me a temperature distribution range of 76 to 419 degrees, while 1e7 gives 535 to 3953degrees. (I'm try to model submereged arc welding process)
Drej,
by inputing the...
Drej,
First - element type is selected, material properties are assigned and the object is modeled and meshed
Then using the scalar parameters, I assign values
eg: Covection_left=10, initial_temp = 25, heat_flux = 1e6,time_step=1.... I then add the boundary condition(convection), load (heat...
Hi,
(using GUI method)
I have been trying to use scalar parameter to assign values to variables that I use in modeling the problem.. the first time I run the program it is fine, but when i modify these scalar parameters and re-run the program again, it computes result using the first set of...
hi,
I am trying KILL the nodes that come up with very high temperature, as they stop the program from running to its completion.. or even modify the temperature to melting point temperature
What I am trying to do is simulate submerged arc welding (the object is complete insulated). When I...
