Sherlock User Forum

Solder material
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Author:  Yaeha kwon [ 20 Jul 2015, 02:57 ]
Post subject:  Solder material

Dear SIR

1. I'm analyzing solder fatigue by using two solder material ; SAC305 & Sn3Ag0.5Cu(Senju) As you can see inside of the attached file "solder.csv", the name and type is only filled up for Sn3Ag0.5Cu. Although the rest information like ModulusAtZero, CriticalDwellTime is empty, sherlock imports this solder material and user can analyze solder fatigue by using it. How can sherlock analyze solder fatigue by using the solder material which just have information of name and type?

2. Although the composition ratio of SAC305 and Sn3Ag0.5Cu is same as 96.5% of tin, 3% of silver, 0.5% of copper, the solder fatigue result is different for these materials. What makes the difference?

Have a nice day!

solder.csv [461 Bytes]
Downloaded 469 times

Author:  Nathan Blattau [ 20 Jul 2015, 09:27 ]
Post subject:  Re: Solder material

Hi Yaeha kwon,

I'm not sure I understand the question. If the solder.csv entry is incomplete an error is generated and the solder material is not available. I downloaded the attached file and get an error.

09:22:15.654 USER/solder.csv: solder type[3]: No value specified for ModulusAtZero

This is the first empty field Sherlock encounters when reading the file and causes an error.

Please verify the solder selection option to see if the alloy option for the incomplete entry is present (it should not be).

Best regards,

Author:  Yaeha kwon [ 20 Jul 2015, 09:43 ]
Post subject:  Re: Solder material

I attached the new solder.csv file.
I imported it into sherlock successfully and using this solder material for solder fatigue ana.
The question was, although I did not set the material information (like ModulusAtZero) except of its name and type, how can sherlock uses it.
Does sherlock automatically gets the physical and chemical properties of solder material just by the name and type?

solder.csv [33 Bytes]
Downloaded 445 times

Author:  Nathan Blattau [ 20 Jul 2015, 10:29 ]
Post subject:  Re: Solder material

Hi Yaeha kwon,

Since the solder.csv is empty and not formatted correctly. The only two fields defined is the alloy name and type. The absence of row names tells Sherlock that only that data exists for the material. Sherlock then uses internally coded defaults to guess what the rest of the properties are.

These values are typically very conservative.

Please be very careful with configuration files, you should only use them if they are complete. While we do provide some error checking you should always verify the properties and formatting of the configuration files.

Best regards,

Author:  dmfarley [ 28 Oct 2015, 09:10 ]
Post subject:  Re: Solder material

Is it possible to post the default solder config file here? I don't seem to have one and am getting all kinds of errors. Not sure how it happened.

Author:  Nathan Blattau [ 16 Feb 2016, 17:23 ]
Post subject:  Re: Solder material

Here is a default solder.csv file.

solder.csv [425 Bytes]
Downloaded 452 times

Author:  Gabriel Siguenza [ 27 Jul 2016, 15:22 ]
Post subject:  Re: Solder material

Hi Mr. Nathan,

I'm working in a project where I would like to evaluate different solder alloys under thermal cycles. I see in last Sherlock 5.0 version there are only two alloys: SAC305 and 63SN37PB. I would like to add SAC105 and SAC0307. As far as I understand I would need to modify the spreadsheet solder.csv including the required parameters for each alloy. My question is: Do you know where I can find the right information to properly fill every single parameter in the CSV file?

Appreciate your help.

Gabriel Siguenza.

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