use abaqus to model fatigue crack closure

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use abaqus to model fatigue crack closure

jane89
Hi there. 
I am currently working on replicate Dodd's work, entitled 'three-dimensional effects on fatigue crack closure in the smalle-scale yielding regime - a finite element study' 

Below is the model and result of Dodd's paper. 





While what I got is the below result 


Anyone can tell me what is the possible error? Thanks.
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Re: use abaqus to model fatigue crack closure

Wazysky
It is very hard to comment or suggest you solution with limited information about your modeling procedure.
 How did you apply the cyclic load?  

 the load increment may affect your results:
 

 Your graph is not clear. The X-axis in your graph does not seem for the normalized depth. It seems you are using the node numbers vs the crack closure. If so, it seems that the node extracted not in order. check the coordinates of the node through the thickness and modify the graph accordingly
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Re : [Abaqus] Re: use abaqus to model fatigue crack closure

hadj-djilani Abdelhadi

Hello abaqus users
Is anyone working on milling on composite aluminium or composite CFRP so that we can help each other maybe
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Re: use abaqus to model fatigue crack closure

raj-22
In reply to this post by jane89
Please Send the Dodd's paper for considering what assumptions he would have
included in the model.
You damage model and his may be different.
your loads and boundry conditions also needs to be same has his.
your mesh density needs to be same has his - for cohesive or xFEM models.


On Thu, Jan 10, 2019 at 8:06 AM SK wong [hidden email] [Abaqus] <
[hidden email]> wrote:

>
>
> Hi there.
> I am currently working on replicate Dodd's work, entitled
> 'three-dimensional effects on fatigue crack closure in the smalle-scale
> yielding regime - a finite element study'
>
> Below is the model and result of Dodd's paper.
>
>
>
>
>
> While what I got is the below result
>
>
> Anyone can tell me what is the possible error? Thanks.
>
>
>


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