there is no specific material damage model called "MAXPS" in Abaqus. It's possible that new features or updates have been introduced since then, but I don't have access to real-time information beyond that date.
If you are referring to a different material damage model or if "MAXPS" is a custom user-defined material, please provide more context or the correct name of the damage model. Additionally, the maximum principal stress criterion is a common approach used in various damage models, such as the Maximum Principal Stress criterion for failure, but it's important to ensure that you're referring to the correct method and model in Abaqus.
To get the most accurate and up-to-date information regarding the "MAXPS" damage model in Abaqus or any other material damage model, I recommend consulting the official Abaqus documentation, the Abaqus user manual, or reaching out to the Abaqus support team for assistance. They will be able to guide you on how to use the specific model and what values you should enter for your analysis.