CuntzeCriterion

class ansys.dpf.composites.failure_criteria.CuntzeCriterion(*, cfc=True, cft=True, cma=True, cmb=True, cmc=True, dim=2, wf_cfc=1.0, wf_cft=1.0, wf_cma=1.0, wf_cmb=1.0, wf_cmc=1.0, b21=0.2, b32=1.3805, fracture_plane_angle=53.0, mode_interaction_coeff=2.6)

Defines the Cuntze criterion for uni-directional orthotropic reinforced materials.

Parameters:

• cfc (bool, default: True) – Activates the failure evaluation regarding compression in fiber direction.

• cft (bool, default: True) – Activates the failure evaluation regarding tension in fiber direction.

• cma (bool, default: True) – Activates the failure evaluation of the matrix due to tension.

• cmb (bool, default: True) – Activates the failure evaluation of the matrix due to compression.

• cmc (bool, default: True) – Activates the failure evaluation of the matrix due to compression or shear.

• dim (int, default: 2) – Whether the 2D or 3D formulation of the criterion is used.

• wf_cfc (float, default: 1.0) – Weighting factor of fiber failure due to compression (cfc).

• wf_cft (float, default: 1.0) – Weighting factor of fiber failure due to tension (cft).

• wf_cma (float, default: 1.0) – Weighting factor of matrix failure due to tension (cma).

• wf_cmb (float, default: 1.0) – Weighting factor of matrix failure due to compression (cmb).

• wf_cmc (float, default: 1.0) – Weighting factor of matrix failure due to compression or shear (cmc).

• b21 (float, default: 0.2) – In-plane shear friction coefficient. The default is 0.2.

• b32 (float, default: 1.3805) – Out-of-plane shear friction coefficient. The default is 1.3805. The value depends on the fracture plane angle.

• fracture_plane_angle (float, default: 53.0) – Fracture plane angle in degrees. The default is 53. The value must be greater than 45. The value depends on the out-of-plane shear friction coefficient.

• mode_interaction_coeff (float, default: 2.6) – Mode interaction coefficient. The default is 2.6.

Methods

CuntzeCriterion.to_dict()
CuntzeCriterion.to_json()

Attributes

CuntzeCriterion.active	The failure criterion is suppressed if active is False.
CuntzeCriterion.b21	In-plane shear friction coefficient.
CuntzeCriterion.b32	Out-of-plane shear friction coefficient.
CuntzeCriterion.cfc	Activates the failure evaluation regarding compression in fiber direction.
CuntzeCriterion.cft	Activates the failure evaluation regarding tension in fiber direction.
CuntzeCriterion.cma	Activates the failure evaluation of the matrix due to tension.
CuntzeCriterion.cmb	Activates the failure evaluation of the matrix due to compression.
CuntzeCriterion.cmc	Activates the failure evaluation of the matrix due to compression or shear.
CuntzeCriterion.dim	Whether the 2D or 3D formulation of the criterion is used.
CuntzeCriterion.fracture_plane_angle	Fracture plane angle in degrees.
CuntzeCriterion.mode_interaction_coeff	Mode interaction coefficient.
CuntzeCriterion.name	Name of the failure criterion.
CuntzeCriterion.wf_cfc	Weighting factor of fiber failure due to compression (cfc).
CuntzeCriterion.wf_cft	Weighting factor of fiber failure due to tension (cft).
CuntzeCriterion.wf_cma	Weighting factor of matrix failure due to tension (cma).
CuntzeCriterion.wf_cmb	Weighting factor of matrix failure due to compression (cmb).
CuntzeCriterion.wf_cmc	Weighting factor of matrix failure due to compression or shear (cmc).