Table 3. Margin of safety

Material	Yield strength (MPa)	Ultimate strength (MPa)	Max. stress (MPa)	Margin of safety		Axis
AL7075 T6	503	572	111.1	Yle.	2.62	X
AL7075 T6	503	572	111.1	Ult.	2.43	X
Structural steel	250	460	104.1	Yle.	0.92	Y
	250	460	104.1	Ult.	1.95	Y
	250	460	45.6	Yle.	3.39	Z
	250	460	45.6	Ult.	5.73	Z