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How to calculate back stress in abaqus?

I am doing a fatigue analysis for a component which is manufactured by stamping simulation From the stamping simulation results , I have taken plastic strain alone. I am doing a nonlinear static analysis in abaqus. I am using the below command *INITIAL CONDITIONS,TYPE=HARDENING,SECTION POINTS If I am using this command, it is asking back stress value. What is meant by back stress? How to calculate the back stress ? Can anybody answer for this question?

Need to know information about Hermite cubics & shape function

I am doing my research in nonlinear vibration of beams. In that research, I have to derive the shape function for different end conditions of the beam. Regarding this,I need some ideas. Are there books I can reference?

Regarding my research work, I need to know about hermite cubics in Fem. Can any one suggest a book regarding this?

Need to know information about Hermite cubics & shape function

I am doing my research in nonlinear vibration of beams. In that research, I have to derive the shape function for different end conditions of the beam. Regarding this,I need some ideas. Are there books I can reference?

Regarding my research work, I need to know about hermite cubics in Fem. Can any one suggest a book regarding this?

Can anyone help me to get the following book?

Hi ,

I am doing phd in nonlinear vibration. Regarding my thesis, I want to refer the following book

"Analytical and numerical methods for vibration analysis" by "Jong-Shyong"

Since the cost of this book is very costly, I am not able to afford this book. I am ready to buy the used copy of this book also.

Can anyone have used copy of this book?

If anyone have, plz provide the photocopy of that book.

If anyone knows, free download copy of the book, plz let me know

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