Sandeep Medikonda
Ansys Employee

This is because the external forces are balanced by forces developed inside the material, which basically tends to oppose the elongation effect, causing the equilibrium state. What the image tells you is where the part is most stressed to balance the pressure load applied on the top.


Refer to the Ansys theory manual for more details:


https://ansyshelp.ansys.com/account/Secured?returnurl=/Views/Secured/corp/v201/en/ans_thry/thy_anproc1.html%23anpassump


https://ansyshelp.ansys.com/account/Secured?returnurl=/Views/Secured/corp/v201/en/ans_thry/thy_str1.html%23strucstressstrain