Hi i can find two option available in collapse module. why there is two option and what i need to prefer always. Please find attached snap for reference

  • Hi Chinnaraja, 

    Thank you for your question. Collapse Advanced has more advanced numerical approaches for the progressive analysis and also you have more control. For example, it uses the arc length method to better capture the post-buckling behavior, and load increments vary at each step to improve convergence. Of course, you have control over the process. For more information, please refer to the "Collapse Advanced.pdf" which is in your SACS installation directory (or from Executive)

    Best regards,

    Bitna