Week 4 -Wire Bending Challenge

Aim: To perform an analysis to simulate the bending of a wire of different material and to determine Equivalent stress and Equivalent strain on the wire alone.

Model:

The materials used are Copper Alloy NL, Aluminium Alloy NL and Magnesium Alloy NL.

Meshing:

As a whole the mesh element size is default. The contact surfaces are given a sizing of 2.2 mm and the meshing is in tetrahedrons. The area of contact of the wire to the wheel is set to 0.8 mm by choosing a sphere of influence (r =7 mm) at the make shift coordinate system.

Observation:-

Case I : Copper Alloy NL

a) Equivalent stress -

b) Equivalent strain -

Case II : Aluminium Alloy NL

b) Equivalent Stress -

b) Equivalent strain -

Case II : Magnesium Alloy NL

b) Equivalent Stress -

b) Equivalent strain -

Results : -

	Copper	Alloy NL	Aluminium	Alloy NL	Magnesium	Alloy NL
	MAX	MIN	MAX	MIN	MAX	MIN
Equivalent Strain	0.0033	7.18e-8	0.0046	6.33e-8	0.0056	6.25e-8
Equivalent Stress	360.69	0.0038	326.89	0.0027	253.27	0.0017

Conclusion :

From the above table it is clear to see that stress for Magnesium Alloy is the least where as strain is highest. Copper wire has the highest stress value.