2D Truss Deflection Calculation

This is simple program which can be used to find deflection in 2D trusses.

Dependency

This project requires PHP 7+. You can install PHP 7 from http://php.net/manual/en/install.php

Installation

Please follow the following steps in order to start the project.

• Create a clone wherever you want.

$ git clone https://github.com/tarunsinghal92/2Dtrussdeflection

• Install the required dependencies.

$ composer install

• Modify the values of young modulus, etc in config.inc file which is present in includes folder.

/**
 * Young modulus of the material
 */
define('E', '30000');

/**
 * magnifying factor of displacements
 */
define('MAGNIFICATION_FACTOR', 20.0);

/**
 * length factor for unit conversion
 */
define('LENGTH_FACTOR', 1.0);

/**
 * magnifying factor in general
 */
define('GENERAL_MAGNIFICATION_FACTOR', 50.0);

• Modifiy the forces and Member details in data/members.txt and data/forces.txt file.

Format for members.txt

element           : # of element
node1             : value of force in X-Dir(KN)
node2             : value of force in Y-Dir(KN)
node1_constraints : DOF free/fixed @ Node1 in X-Dir,Y-Dir
node2_constraints : DOF free/fixed @ Node2 in X-Dir,Y-Dir
area              : Area of Cross-Section

e.g. 1-2	0,0	2,0	fixed,free	free,free 500
It means Node1 @ (0,0) is fixed in X-Dir and free in Y-Dir &
Node2 @ (2,0) is free in both Dir for Element '1-2'

Format for forces.txt

node : # of node
x    : value of force in X-Dir(KN)
y    : value of force in Y-Dir(KN)

e.g. 1  100 200
It means a force of 100KN in X-Dir & 200KN in Y-Dir is applied on Node #1

Running the Program

Run following command in terminal.

$ ./run.sh

Then navigate to http://localhost:8100 to view the results.

License

This project is licensed under MIT License. See LICENSE for full license text.