Thank you for the suggestion
As per the depth of penetration and bead size is considered the
simulation results are matching. It means our simulation is justified.
But in case of stress results, the maximum stress value is around
450MPa after cooling at room temperature.Is this stress value is
justified in case of stainless steel (Yield strength of stainless is
around 240MPa).
Please tell me...
On Thu, Jun 30, 2011 at 5:57 PM, K.Babu <kbabupsg@gmail.com> wrote:
> Yadav,
>
> You should go for an experiment to validate the results to conclude the
> results are in inline with simulation.
>
> I have validated the results with experiments , also with GA .
>
> Why do you want to justify that, Yield is more than the requirement ?
>
> Why you missed the is conduction heat transfer?
>
> Verify the weld size , Width of bead with experiemnts to your simulated one,
>
> If the both the bead size , depth of penetration is nearly equal means your
> have simulation is justified , other wise you need to redo the simulation.
>
>
>
>
>
> On Thu, Jun 30, 2011 at 7:23 PM, ashish yadav <yadavashish018@gmail.com>
> wrote:
>>
>> Hello K.Babu
>> Thanks for your support.
>> Its good that you have worked in sysweld. I am also doing a project to
>> simulate a Laser weld joint of two SS plate having dimension100*400mm
>> of 2mm thickness. weld run is of 400mm by putting plates together with
>> 2mm thickness.
>>
>> In heat model I have taken 3D conical gaussian heat source for the
>> laser source. Arc efficiency is 60% and for cooling rate, I have used
>> predefind convective and radiation(mm).
>> After that I solved for the thermal and mechanical results. In thermal
>> results temperature contour, phase proportion and grain size is there.
>> In mechanical results, thermal stress, strain, strain energy is there.
>> Now I can not understand that how i will justify this results. Should
>> I go for the experiments or some standards are there?
>> Please help me..
>>
>> On Thu, Jun 30, 2011 at 4:24 PM, K.Babu <kbabupsg@gmail.com> wrote:
>> > Ashish Yadav,
>> >
>> > How much is greater ?
>> >
>> > How do you setup the cooling rate in Sysweld and how much you assumed
>> > the
>> > arc efficiency , What type of heat input model?
>> >
>> > The above factors have dramtaic impact on the resulst.
>> >
>> > I was simulated the Autogeneous TIG welding with sysweld2006, i have got
>> > as
>> > much as 16% variation from the mock up values.
>> >
>> >
>> >
>> > On Thu, Jun 30, 2011 at 3:40 PM, ashish yadav <yadavashish018@gmail.com>
>> > wrote:
>> >>
>> >> Hello frnds
>> >> I have done a laser welding simulation using
>> >> SYSWELD.In mechanical results I am getting the thermal stress values
>> >> greater than yield strength of metal(stainless steel).
>> >> How can I justify this.
>> >> Please help me.
>> >>
>> >> --
>> >> Regards
>> >> Ashish Yadav
>> >>
>> >> --
>> >> To post to this group, send email to materials-welding@googlegroups.com
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>> >> The views expressed/exchnaged in this group are members personel views
>> >> and
>> >> meant for educational purposes only, Users must take their own
>> >> decisions
>> >> w.r.t. applicable code/standard/contract documents.
>> >
>> >
>> >
>> > --
>> > Thanks & regards,
>> >
>> > K.Babu
>> > Welding & Metallurgical Engineer,
>> > PPL Shipyard Pte Ltd
>> > Singapore
>> > HP: +65 94815990
>> > Skype: psgbabu
>> >
>> > --
>> > To post to this group, send email to materials-welding@googlegroups.com
>> > To unsubscribe from this group, send email to
>> > materials-welding+unsubscribe@googlegroups.com
>> > For more options, visit this group's bolg at
>> > http://materials-welding.blogspot.com/
>> > The views expressed/exchnaged in this group are members personel views
>> > and
>> > meant for educational purposes only, Users must take their own decisions
>> > w.r.t. applicable code/standard/contract documents.
>> >
>>
>>
>>
>> --
>> Regards
>> Ashish Yadav
>>
>> --
>> To post to this group, send email to materials-welding@googlegroups.com
>> To unsubscribe from this group, send email to
>> materials-welding+unsubscribe@googlegroups.com
>> For more options, visit this group's bolg at
>> http://materials-welding.blogspot.com/
>> The views expressed/exchnaged in this group are members personel views and
>> meant for educational purposes only, Users must take their own decisions
>> w.r.t. applicable code/standard/contract documents.
>
>
>
> --
> Thanks & regards,
>
> K.Babu
> Singapore
>
> --
> To post to this group, send email to materials-welding@googlegroups.com
> To unsubscribe from this group, send email to
> materials-welding+unsubscribe@googlegroups.com
> For more options, visit this group's bolg at
> http://materials-welding.blogspot.com/
> The views expressed/exchnaged in this group are members personel views and
> meant for educational purposes only, Users must take their own decisions
> w.r.t. applicable code/standard/contract documents.
>
--
Regards
Ashish Yadav
--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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