# Archives

### Thin vs Thick Plates

Thin plates are flat structural members with two parallel planes called faces and a cylindrical surface called an edge or boundary. The plate’s thickness ” h” is defined as the distance between the plane faces. The plates can withstand static or dynamic loads that are mostly perpendicular to their faces. Thin plates have several advantages, […]

### Built-in meshes in FEniCS

In FEniCS, we can either work with the inbuilt meshes or we can also import the mesh file generated in another pre-processing tool as a xdmf format. In order to create inbuilt meshes, firstly, dolfin module is imported as: Matplotlib library is used to display the mesh plots. The different types of inbuilt meshes in […]

### Calculus with Sympy

Sympy is a python package through which we can perform calculus operations in mathematics like differentiation, integration, limits, infinite series, and so on. It is a python library used mainly for symbolic mathematics. The installation of this library is simple by using the following command: pip install sympy In order to write any symbolic expressions, […]

### Static vs Dynamic analysis

When we do our undergraduate studies, we mainly focus on static analysis. We only study the behavior of structures under static loading. But in real-life scenarios, the structure will also experience dynamic loading. So, it is essential for us to study the behavior of structures under dynamic loading. During our postgraduation, we come across the […]

### Obtaining volume, centre of gravity and inertia matrix from STL file

In order to get the details about the volume, centre of gravity and inertia matrix from the STL file of the geometry, we use the numpy-stl python library. It is an efficient and simple library to make work with STL files. The installation of this library is done using command:pip install numpy-stlAfter installing this package, […]

### Free-Free Modal Analysis

Modal analysis is called the mother of all dynamic analysis because modal analysis is a prerequisite before performing any dynamic analysis. The modal analysis captures the dynamic characteristics of the vibrating system like natural frequency and mode shapes. The natural frequency is the inherent frequency of the vibrating system at which the system tends to […]