LS-Dyna-2-Static Analysis

Aim : To perform Linear Static Analysis

Objective : To perform Linear Static Analysis on a Bracket.

Geometry Preparation

1. Importing our Cad Model -> Units -> meters

Mesh Preparation

FEM -> Element & Mesh -> Auto Mesher -> Mesh Type -> Tria -> Element Size -> 0.001

Material Assignment

• Aluminium(MAT_001_MAT-Elastic)
• Density -> 2850 kg/m^3
• Young Modulus -> 72 Gpa -> 72 e9 Pa
• Poisson Ratio -> 0.30

Boundary Conditions

• Now we need to define the boundary conditions to restrict the degree of freedom for the bracket
• FEM ->Model & Part -> Create Entity -> Boundary -> SPC -> Create -> Select Nodes -> Confirm Selection

Section Property

Load Curve

Keyword Manager -> Define -> Create Curve

Applying Load

FEM -> Create Entity -> Load -> Segment -> LCID -> Select Load Curve -> SF(Load) -> 10 Mpa(compressive) -> Confirm Selection

Section Property

Assigning Thickness

Keyword Manager -> Section_Shell -> Thickness -> 2mm(i.e 0.002 m)

Part Creation

Section_Id -> Section_Shell -> Material_Id -> Aluminium

Analysis Setup

End Time

FEM -> Model&Part -> Keyword Manger -> Control -> Termination -> 1 sec

Binary D3 Plot

FEM -> Model&Part -> Keyword Manger -> Database -> Binary_D3_Plot -> DT -> 0.1

ASCII System Energy

Default DT -> 0.02-> Enable GLState & MatSum

Model Checking

We can confirm that we dont have any errors present and we can move forward for calculating output results.

Output Results

Post Processing -> Fringe Component -> View Results.

Von Mises Stress

Resultant Displacement

Internal Energy Plot