OBJECTIVEThe objective of this report is to characterise a plate with a hole when it is subjected under tension the results are analyzed using the software ADINA. The plate has a thickness of 1mm. The objective is to also demonstrate the body sheet feature of ADINA M/MPS (the ADINA Molder, based on the Parasolid geometry kernel). .

SET UPThese are the steps which guide you to complete problem 3 Invoking the AUI and choosing the finite element program. Defining model control Defining model geometry Defining and applying boundary conditions Defining and applying loads Defining material Define elements

DIAGRAMS

Fig1: Defining and aplying boundary conditions

Fig2: Defyning and applying Loads

Fig3: Defining he elements.

Fig4: Element generation

Fig 5: Resultant transformation

TheoryThe main assumption made in the experiment is the stress analysis which is limited to the linear elastic range and the material is assumed to be linear elastic and isotropic. The stress is a load divided by the area. Without the hole the nominal stress would = Force/Area. The resulting stress concentration (SCF) is given a maximum stress at hole over nominal stress based on gross section. SCF = Maximum Stress at Hole/ Nominal Stress Based on Gross Cross-section.The maximum stress adjacent at the hole is max = k net = K (P/Anet) k is the stress concentration factor which is the size of the bar and the diameter of the hole. Basically if you have a smaller radius the results its higher stress.

Results The results below show the simulation I got for the experiment i did in ADINA.

Fig:6 maximum deformation of the plate.

Fig7:distribution of stress from the minimum to the maximum.