BidirectionalMaterial

# BidirectionalMaterial

#include <material/nD/BidirectionalMaterial.h>

class BidirectionalMaterial : public NDMaterial

TaggedObject
MovableObject
Material
NDMaterial

BidirectionalMaterial is an implementation of NDMaterial. BidirectionalMaterial is a two-dimensional elasto-plastic material model with combined linear isotropic and kinematic hardening. The yield surface is circular with a specified radius. A radial return map algorithm is used in the state determination.

// Constructors

// Destructor

// Public Methods

// Public Methods for Output

Constructs a BidirectionalMaterial whose unique integer among NDMaterials in the domain is given by tag. Sets the elastic modulus to E, initial yield stress to fy, and isotropic and kinematic hardening moduli to Hiso and Hkin, respectively. Sets all committed history variables to \(0.0\). The integers tag and ND_TAG_Bidirectional, defined in \(<\)classTags.h\(>\), are passed to the NDMaterial constructor.

Constructs a BidirectionalMaterial with tag 0. All material parameters and committed history variables are set to \(0.0\). The integers 0 and ND_TAG_Bidirectional, defined in \(<\)classTags.h\(>\), are passed to the NDMaterial constructor.

Does nothing.

Sets the trial strain of this material to be strain. Returns 0.

Returns the current trial strain of this material.

Returns the current stress computed by the radial return mapping algorithm. This is the 2d generalization of the 1d algorithm described in Simo & Hughes (1998), Box \(1.5\).

Returns the tangent consistent with the stress computed by the radial return mapping algorithm in getStress().

Sets the committed history variables to be their corresponding trial values. Returns 0.

Does nothing. Returns 0.

Sets all committed history variables to \(0.0\). Returns 0.

Returns a pointer to a new instance of BidirectionalMaterial with the same tag, elastic modulus, initial yield stress, and hardening moduli. Copies the committed history variables to the new object. It is up to the caller to invoke the destructor.

Returns 0 if successful and a negative number if any of the send operation fails.

Returns 0 if successful and a negative number if any of the receive operation fails.

Prints the tag of this object and its elastic modulus, initial yield stress, and hardening moduli to the stream s.