Students will be given an engineering problem to determine and analyze the deformation, maximum stress

of rectangular plate with hole and edge under plain stress $($Shown in details below$)$ using available

resources tool to understand the fundamental of stress concentration factor as a result from this problem

solving finding, as well as the effect of regular meshing Task $1$: Theory of Elasticity $($Stress Concentration Factor$)$ Lab Test $1($Week $6)$

Students will be given an engineering problem to determine and analyze the deformation, maximum stress

of rectangular plate with hole and edge under plain stress $($Shown in details below$)$ using available

resources tool to understand the fundamental of stress concentration factor as a result from this problem

solving finding, as well as the effect of regular meshing and the refine meshing with different levels $($Mesh

Sensitivity Analysis$).$ The required input data shown in Table Task$1$ below.

$[40$ marks$]$

Engineering Problem Details:

The plate with holes shown in Figure Task$1.$ is under plane stress, and subjected to tensile load of $60$ KN $.$

Thickness of plate is $20mm,E=2\mathrm{.}1{10}^7\frac{N}{m}{m}^2,$ poisons ratio $v=0\mathrm{.}3$

Perform the static analysis using ANSYS APDL software $($With Screen Capture Step by Step$),$

and find the following: $($Please refer to Table Task$1$ for the dimensions$).$

A$)$ Use $8$ node $183$ element and describe this element type.

$(4$ Marks$)$

B$)$ The deformation of the plate with and without hole then compares the results.

$(4$ Marks$)$

C$)$ Decide the optimum number of elements using mesh sensitivity analysis approach.

$(5$ Marks$)$

D$)$ Maximum stress of the plate at cross section $1,2,$ and $3.$

$(7$ Marks$)$

E$)$ Consider the plate with and without hole and Determine the Stress Concentration

Factor.

$(5$ Marks$)$

F$)$ Conclude your understanding of Stress Concentration Factor, and explain the difference

between the stress distribution among the plate with and without holes?

$(5$ Marks$)$

G$)$ Using fillet as shown in the Figure Task$1,$ compare the maximum stress results for the

plate with and without fillet.

$(5$ Marks$)$

For ANSYS APDL stress analysis file

$(5$ Marks$)$

Analysis assumption:

Use triangle elements and plane stress with thickness.and the refine meshing with different levels $($Mesh

Sensitivity Analysis$).$ The required input data shown in Table Task$1$ below.

$[40$ marks$]$

Engineering Problem Details:

The plate with holes shown in Figure Task$1.$ is under plane stress, and subjected to tensile load of $60$ KN$.$

Thickness of plate is $20$ mm$,$ E$=2\mathrm{.}1$ x $107$ N$/$mm$2$

$,$ poisons ratio v$=0\mathrm{.}3$

Perform the static analysis using ANSYS APDL software $($With Screen Capture Step by Step$),$

and find the following: $($Please refer to Table Task$1$ for the dimensions$).$

A$)$ Use $8$ node $183$ element and describe this element type. $(4$ Marks$)$

B$)$ The deformation of the plate with and without hole then compares the results.

$(4$ Marks$)$

C$)$ Decide the optimum number of elements using mesh sensitivity analysis approach.

$(5$ Marks$)$

D$)$ Maximum stress of the plate at cross section $1,2,$ and $3.(7$ Marks$)$

E$)$ Consider the plate with and without hole and Determine the Stress Concentration

Factor. $(5$ Marks$)$

F$)$ Conclude your understanding of Stress Concentration Factor, and explain the difference

between the stress distribution among the plate with and without holes?

$(5$ Marks$)$

G$)$ Using fillet as shown in the Figure Task$1,$ compare the maximum stress results for the

plate with and without fillet. $(5$ Marks$)$

For ANSYS APDL stress analysis file $(5$ Marks$)$