Element size convergence

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

Hi,

I have performed non linear quasi static (Bolt Pretension load) analysis for 3 element sizes

2mm

1mm

2mm localy refined with 0.5 mm

 

my results will be like

displacement 0.142,0.135,0.133 (decreasing when fining mesh size)

stress p1 major (advanced avg, corner data,no midside results)

that also   (decreasing when fining mesh size)

 

Now my question is when decreasing element size the values must higher correct??

 

can u any one help me on this

 

its wrong or correct??

 

Regards,

Mohan

 

 

 

 

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Answers

  • Q.Nguyen-Dai
    Q.Nguyen-Dai Altair Community Member
    edited June 2017

    For almost FE software, when decreasing element size, displacement will decrease too, but the stress, in general, will increase.

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