FEDEASLab

Element_Library > Frame_Elements > ConcentrInelastic > Create_PlasticLimitSurface

Create_PlasticLimitSurface

Purpose

pologonal plastic limit surface for truss and 2d frame elements

Synopsis

LimitSurf = Create_PlasticLimitSurface (ElemName,ElemData)

Description

CREATE_PLASTICLIMITSURFACE pologonal plastic limit surface for truss and 2d frame elements
  LIMITSURF = CREATE_PLASTLIMSURFACE(ELEMNAME,ELEMDATA)
  the function sets up the polygonal plastic limit surface for the element
  type ELEMNAME (only truss and 2d frame elements supported);
  the polygonal plastic surface depends on the plastic axial capacity NP
  and flexural capacity MP in ELEMDATA;
  LIMITSURF is an array with the plastic capacity values at the polygon corners;
  the field NMOPT of ELEMDATA determines the type of plastic surface;
  the current options are:
    'None' : no interaction between axial and flexural capacity
    'Dmnd' : diamond shaped polygon for plastic limit surface
    'AISC' : 8-sided polygon according to AISC specifications

Cross-Reference Information

This function calls:

This function is called by: