Description
Geometry for a beam section in 3D, along with basic material properties.
It also supports the advanced case of Iyy and Izz axes rotated respect reference, centroid with offset from reference, and shear center with offset from reference. This material can be shared between multiple beams.
#include <ChBeamSection.h>
Public Member Functions | |
void | SetSectionRotation (double ma) |
Set the rotation of the section for which the Iyy Izz are defined. | |
double | GetSectionRotation () |
void | SetCentroid (double my, double mz) |
Set the displacement of the centroid C (i.e. More... | |
double | GetCentroidY () |
double | GetCentroidZ () |
void | SetShearCenter (double my, double mz) |
Set the displacement of the shear center S with respect to the reference beam line. More... | |
double | GetShearCenterY () |
double | GetShearCenterZ () |
Public Member Functions inherited from chrono::fea::ChBeamSectionBasic | |
void | SetArea (const double ma) |
Set the cross sectional area A of the beam (m^2) | |
double | GetArea () const |
void | SetIyy (double ma) |
Set the Iyy moment of inertia of the beam (for flexion about y axis) Note: some textbook calls this Iyy as Iz. | |
double | GetIyy () const |
void | SetIzz (double ma) |
Set the Izz moment of inertia of the beam (for flexion about z axis) Note: some textbook calls this Izz as Iy. | |
double | GetIzz () const |
void | SetJ (double ma) |
Set the J torsion constant of the beam (for torsion about x axis) | |
double | GetJ () const |
void | SetKsy (double ma) |
Set the Timoshenko shear coefficient Ks for y shear, usually about 0.8, (for elements that use this, ex. More... | |
double | GetKsy () const |
void | SetKsz (double ma) |
Set the Timoshenko shear coefficient Ks for z shear, usually about 0.8, (for elements that use this, ex. More... | |
double | GetKsz () const |
void | SetAsRectangularSection (double width_y, double width_z) |
Shortcut: set Area, Ixx, Iyy, Ksy, Ksz and J torsion constant at once, given the y and z widths of the beam assumed with rectangular shape. | |
void | SetAsCircularSection (double diameter) |
Shortcut: set Area, Ixx, Iyy, Ksy, Ksz and J torsion constant at once, given the diameter of the beam assumed with circular shape. | |
void | SetDensity (double md) |
Set the density of the beam (kg/m^3) | |
double | GetDensity () const |
void | SetYoungModulus (double mE) |
Set E, the Young elastic modulus (N/m^2) | |
double | GetYoungModulus () const |
void | SetGshearModulus (double mG) |
Set G, the shear modulus. | |
double | GetGshearModulus () const |
void | SetGwithPoissonRatio (double mpoisson) |
Set G, the shear modulus, given current E and the specified Poisson ratio. | |
void | SetBeamRaleyghDamping (double mr) |
Set the Rayleigh damping ratio r (as in: R = r * K ), to do: also mass-proportional term. | |
double | GetBeamRaleyghDamping () |
Public Member Functions inherited from chrono::fea::ChBeamSection | |
void | SetDrawThickness (double thickness_y, double thickness_z) |
Sets the rectangular thickness of the beam on y and z directions, only for drawing/rendering purposes (these thickness values do NOT have any meaning at a physical level, use ChBeamSectionBasic::SetAsRectangularSection() | |
double | GetDrawThicknessY () |
double | GetDrawThicknessZ () |
bool | IsCircular () |
Tells if the section must be drawn as a circular section instead than default rectangular. | |
void | SetCircular (bool ic) |
Set if the section must be drawn as a circular section instead than default rectangular. | |
void | SetDrawCircularRadius (double draw_rad) |
Sets the radius of the beam if in 'circular section' draw mode, only for drawing/rendering purposes (this radius value do NOT have any meaning at a physical level, use ChBeamSectionBasic::SetAsCircularSection() | |
double | GetDrawCircularRadius () |
Public Attributes | |
double | alpha |
double | Cy |
double | Cz |
double | Sy |
double | Sz |
Public Attributes inherited from chrono::fea::ChBeamSectionBasic | |
double | Area |
double | Iyy |
double | Izz |
double | J |
double | G |
double | E |
double | density |
double | rdamping |
double | Ks_y |
double | Ks_z |
Public Attributes inherited from chrono::fea::ChBeamSection | |
double | y_drawsize |
double | z_drawsize |
bool | is_circular |
Member Function Documentation
◆ SetCentroid()
|
inline |
Set the displacement of the centroid C (i.e.
the elastic center, or tension center) with respect to the reference beam line.
◆ SetShearCenter()
|
inline |
Set the displacement of the shear center S with respect to the reference beam line.
For shapes like rectangles, rotated rectangles, etc., it corresponds to the centroid C, but for "L" shaped or "U" shaped beams this is not always true, and the shear center accounts for torsion effects when a shear force is applied.
The documentation for this class was generated from the following file:
- /builds/uwsbel/chrono/src/chrono/fea/ChBeamSection.h