Added sample data files

3 files changed, 84 insertions, 0 deletions

diff --git a/tutorials/module_4/data_generation.py b/tutorials/module_4/data_generation.py
new file mode 100644
index 0000000..7656834
--- /dev/null
+++ b/tutorials/module_4/data_generation.py
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+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+Created on Mon Oct 20 14:40:48 2025
+
+@author: christian
+"""
+
+import numpy as np
+import pandas as pd
+import matplotlib.pyplot as plt
+
+# Parameters
+A = 1.0         # initial amplitude
+b = 0.2       # damping coefficient
+f = 1.0         # frequency (Hz)
+time = np.linspace(0, 5, 1000)  # time vector
+
+# Dampened sine wave formula
+displacement = A * np.exp(-b * time) * np.sin(2 * np.pi * f * time)
+
+velocity = np.gradient(displacement, time)
+acceleration = np.gradient(velocity,time)
+
+# Plotting
+plt.figure(figsize=(8, 5))
+plt.plot(time, displacement, label='disp. (m)', color='blue')
+plt.plot(time, velocity, label='vel. (m/s)', color='red')
+plt.plot(time, acceleration, label='acc. (m/s^2)', color='black')
+plt.title('Pendulum')
+plt.xlabel('Time (s)')
+plt.ylabel('f(t)')
+plt.grid(True)
+plt.legend()
+plt.tight_layout()
+plt.show()
+
+
diff --git a/tutorials/module_4/force_displacement_data.txt b/tutorials/module_4/force_displacement_data.txt
new file mode 100644
index 0000000..825269d
--- /dev/null
+++ b/tutorials/module_4/force_displacement_data.txt
@@ -0,0 +1,23 @@
+Sample Stress–Strain Data (AISI 1080 Steel)
+
+Strain (mm/mm)	Stress (MPa)
+--------------  -------------
+0.0000		0
+0.0005		100
+0.0010		200
+0.0015		300
+0.0020		400
+0.0025		500
+0.0030		510
+0.0040		520
+0.0050		540
+0.0070		600
+0.0100		700
+0.0150		800
+0.0200		850
+0.0300		820
+0.0500		750
+0.0800		650
+0.1200		500
+0.1500		300
+0.1800		0
diff --git a/tutorials/module_4/velocity-time.txt b/tutorials/module_4/velocity-time.txt
new file mode 100644
index 0000000..9a7e221
--- /dev/null
+++ b/tutorials/module_4/velocity-time.txt
@@ -0,0 +1,23 @@
+| Time (s) | Velocity (m/s) |
+| -------- | -------------- |
+| 0        | 0              |
+| 2        | 1.5            |
+| 4        | 3              |
+| 6        | 4.5            |
+| 8        | 6              |
+| 10       | 7.5            |
+| 12       | 9              |
+| 14       | 10.5           |
+| 16       | 12             |
+| 18       | 13.5           |
+| 20       | 15             |
+| 24       | 18             |
+| 28       | 21             |
+| 32       | 24             |
+| 36       | 27             |
+| 40       | 30             |
+| 42       | 25             |
+| 44       | 18             |
+| 46       | 10             |
+| 48       | 5              |
+| 50       | 0              |