### Description

This tutorial will demonstrate how to build a biomechanics model of dog ventricles using different pre-built components. The Model consists of 4 components. The first component is the geometry with 48 tri-cubic elements. The second component is the dynamic (active tension) model. The third component is the constitutive model. The final component is the circulation model with the corresponding boundary conditions.

### Start Continuity

- Launch the Continuity 6.4 Client
Click

**OK**to bring up the main window

### Load Geometry

- File→Library→Search...
Find the model named

**dog_geom**Right click on the model and select

**Load**Select

**Reset (without save) then proceed**; theoption.**second**

#### Send and Calculate Mesh

If the Dimensions Form appears, simply click

**Apply Marked Recommendations**and then**OK**

#### Render Elements

Click the

**lines**radio buttonClick

**Render**to display mesh lines

### Load Dynamic Model

- File→Library→Search...
Find the model named

**BM_Hilltype_sympy**Right click on the model and select

**Load**Select

**Retain current problem, but overwrite the following objects:...**; theoption.**third**

### Load Constitutive Model

- File→Library→Search...
Find the model named

**Ogden_Holzapfel_2009_U8_active_hilltype**Right click on the model and select

**Load**Select

**Retain current problem, but overwrite the following objects:...**; theoption.**third**

### Load Circulation Model

- File→Library→Search...
Find the model named

**dog_lbbb_biomechanics_circulation**Right click on the model and select

**Load**Select

**Retain current problem, but overwrite the following objects:...**; theoption.**third**

### Solve Nonlinear

If the Dimensions Form appears, simply click

**Apply Marked Recommendations**and then**OK**

Biomechanics→Solve Nonlinear...

Specify the

**Number of Steps**as 2Specify

**when sum of solution increments <**as 1e-002Specify

**when sum of unconstrained residuals <**as 1e-002

Click the

**Solve**button, and wait for the solver to finish. While the solution is being computed the window will remain open. There will also be output listed to the console window and the Python shell.