Topic: Maximum stress
I am using material model CCnonlinCementitious2 in atena v4 to modeling RC slab subjected temprature load: tempeture for volume of concrete; dT=-45 Cdegree and and the number of load step is 45 (tempreture will decreate 1 degree per load step).
After solving, it show the maximum principle stress of concrete (Si-stress) is 3.2Mpa while My concrete tensile strength is 2.5MPa
Why stress can larger than tensile strength?
Please help me!