STRAIN AND STRESS + FEA MODEL// 14.3.22
Strain (ε) – the amount of deformation experienced by the body in the direction of force applied, divided by the initial dimensions of the body.
Strain = change in length / original length ε = ΔL/L
Stress (σ) – force per unit area within materials that arises from externally applied forces
Stress = Force / Surface Area σ = F/A
Young’s Modulus (E) – the ratio of tensile stress (σ) to tensile strain (ε)
Young’s Modulus = Stress / Strain E = σ/ε
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Fusion Project – FEA Modelling
Learning to use the split face and offset line tool
Using the simulation feature we can then apply a force to the model but it also needs to be held in place to give us accurate results. Then finally a mesh is created.
With this mesh we can then gather the stress model of how the object reacts to an applied force of 1N from the top of the shape pointing downwards. 
The final stress model then displays the points with the most and least amounts of stress are red and the points with the least stress are a darker blue as shown by the colour gradient in the bottom right. The model itself has also deformed slightly as the top and bottom parts of the rectangle have bent inwards while the sides have bent outwards.
For more details on the tensile testing I did later using a tensile machine click here