Hi, Manikanta Reddy In the first step, you need to determine which type of composite you are considering for fatigue. Composites are divided into unidirectional types, needles, woven and so on. After selecting the type of composite based on the available theories, each can be applied. For example, Shokrieh has been proposed composite materials fatigue that predicts the final life as well as the progressive failure. There are various other methods that have been used in our academic and industrial previous projects. The important thing for you is to choose the model first. Technically, it is usually based on increasing the force in the first step to the maximum load of fatigue loading and in the second step the fatigue equations are applied.

Thank you Amir Molavizadeh.

Could you please share any material available on this code.

the composites are unidirectional and bidirectional composites.

If you have the complete procedure of writing in abaqus, please share.

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Hi Manikanta. I send you an Email .

Thank you Amir Molavizadeh for your kind response.

Could you send this code to me? My e-mail adress is [email protected] you very much!

Hi i will write a UMAT for low cyclic fatigue ?

could you send this code to me ? please send me your number to keep in touch

[email protected]