Plot of velocity magnitude – showing the beam profile
Model Description
This simple 2D model simulates an immersion B-Scan inspection of a CFRP laminate containing a delamination defect.
The model comprises of a CFRP laminate with 24 ply layers and thin inter-ply resin layers. The number of plies is variable and their orientation is read into the model from an external CSV file, allowing for different laminates to be simulated.
The simulated model area is reduced to allow for efficient simulations to be performed.
Model geometry
Design Variables
The base model allows the following design variables to be adjusted (indicated by *).
|
Parametric Variable |
Description |
Default Value |
|---|---|---|
|
tx_loc* |
Location in x direction of transducer |
10 mm |
|
tx_freq* |
Transducer center frequency |
5 MHz |
|
tx_rad* |
Transducer radius |
2 mm |
|
tx_off |
Transducer stand off from laminate surface |
5 mm |
|
nply |
Number of ply layers |
24 |
|
ply_thk* |
Ply layer thickness |
250 µm |
|
res_thk |
Inter-ply resin layer thickness |
10 µm |
|
def_cent |
Location in x direction of delamination center |
10 mm |
|
def_len |
Length of delamination |
5 mm |
|
def_ply* |
Depth of delamination in terms of number of ply layers |
16 |
Outputs
The outputs from this model are:
- Transducer received A-Scan signal
- Maximum velocity magnitude to plot the beam profile
A-Scan outputs from all simulations
Constructed B-Scan (Cropped to laminate region)
Runtime Statistics
|
Degrees of Freedom |
1,831,848 |
|
Solve Time |
74 secs (8 CPUs) |
|
Core Hours |
0.84 (per simulation) |
|
Memory Usage |
75 MB (per simulation) |
Files
The following input files are required to run this model, click here to download the input files: