# Author: Constance Fischer

## 12 AprHappy Easter 2022

Wishing you a holiday celebration filled with family, friends, love and laughter! Happy Easter 2022! Your simulation team at FEA-Solutions....

## 22 FebFriction

Friction is the resisting force which occurs when two objects in contact with one another are sliding (or want to slide) against each other. This resisting force is equal to the force normal (perpendicular) to the contact surface multiplied by the friction coefficient. There are two...

## 14 FebValentine’s Day 2022

Love and Happiness from all of us at FEA-Solutions....

## 08 FebForce and Moment Symbols

[vc_row css_animation="" row_type="row" use_row_as_full_screen_section="no" type="full_width" angled_section="no" text_align="left" background_image_as_pattern="without_pattern"][vc_column][vc_column_text]In structural mechanics, forces and moments are graphically represented by arrows. For a force, which is vector (https://fea-solutions.co.uk/scalar-vector-and-matrix/), a straight single arrow is used to depict it, pointing in the direction the force is acting. For moments, there are two...

## 01 FebScalar, Vector and Matrix

In mathematics, all values can be represented by either a scalar, a vector or a matrix. A scalar is a quantity which is fully defined by a magnitude. In engineering, examples of scalars include mass (https://fea-solutions.co.uk/mass-and-weight/), energy and time. A vector is a quantity which is fully...

## 25 JanRight Hand Rule

The right hand rule is applied to define the orientation of axes and the positive direction for rotations in a coordinate system (https://fea-solutions.co.uk/coordinate-systems/). Firstly, the right hand rule is used to define the directions of a right handed coordinate system, which is exclusively used in engineering....

## 19 JanGlobal, Local and Element Coordinate Systems

In FEA, different coordinate systems (COS) are used depending on the application. The global COS in FEA is always the Cartesian (https://fea-solutions.co.uk/coordinate-systems/) COS, as all matrix calculations (stiffness, mass and damping) are done using this system. A local COS can then be used when it is advantageous....

## 11 JanCoordinate Systems

Coordinate systems (COS) are used as a method of defining the position of a point in space. In order to create a coordinate system, an origin location and the axis directions are required. In three-dimensional space, there are the following coordinate systems: Cartesian, with the axes...

## 21 DecMerry Christmas 2021

We are wishing You and Your Family a wonderful Christmas and a Happy New Year 2022!  ...

## 14 DecAcoustic Transmission Loss

In acoustics (https://fea-solutions.co.uk/acoustics/), transmission loss is defined as the ratio between the power send and power received. In physical tests this is typically performed by having a sender room and a receiver room, with the item being tested (for example a door) installed between the...