pycufsm.pre.stresses
====================

.. py:module:: pycufsm.pre.stresses


Functions
---------

.. autoapisummary::

   pycufsm.pre.stresses.yield_mp
   pycufsm.pre.stresses.stress_gen


Module Contents
---------------

.. py:function:: yield_mp(nodes: numpy.ndarray, f_y: float, sect_props: pycufsm._types.Sect_Props, restrained: bool = False) -> pycufsm._types.Forces

   Determine yield strengths in bending and axial loading

   Args:
       nodes (np.ndarray): _description_
       f_y (float): _description_
       sect_props (Sect_Props): _description_
       restrained (bool, optional): _description_. Defaults to False.

   Returns:
       forces (Forces): Yield bending and axial strengths
           {Py,Mxx_y,Mzz_y,M11_y,M22_y}

   BWS, Aug 2000
   BWS, May 2019 trap nan when flat plate or other properites are zero


.. py:function:: stress_gen(nodes: numpy.ndarray, forces: pycufsm._types.Forces, sect_props: pycufsm._types.Sect_Props, restrained: bool = False, offset_basis: Union[int, list] = 0) -> numpy.ndarray

   Generates stresses on nodes based upon applied loadings

   Args:
       nodes (np.ndarray): _description_
       forces (Forces): _description_
       sect_props (Sect_Props): _description_
       restrained (bool, optional): _description_. Defaults to False.
       offset_basis (Union[int, list], optional): offset_basis compensates for section properties
           that are based upon coordinate
           [0, 0] being something other than the centreline of elements. For example,
           if section properties are based upon the outer perimeter, then
           offset_basis=[-thickness/2, -thickness/2]. Defaults to 0.

   Returns:
       np.ndarray: _description_

   BWS, 1998
   B Smith, Aug 2020