Round tube, 80.3 ID / 2.0mm Thick, 3m length, unflared for bending

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CNC Filament wound carbon fibre / epoxy round tube

DIMENSIONS AND GENERAL PROPERTIES
Inside Diameter	80.3	mm	Outside Diameter	84.3	mm
Wall Thickness	2.0	mm	Length	3000	mm
Flared end (for sleeving to another tube)	NO		Laminate optimum for	BENDING*
Mass (total)	2200	g	Mass per metre	730	g/m

* The laminate of this tube is optimised for bending, tension and compression loads with at least 80% of fibres oriented at 5 degrees or less, and the remainder off axis (45 degrees and 90 degrees).

ENGINEERING MECHANICAL PROPERTIES (FROM CALCULATIONS)
Second Moment of area (Ixx)	437800	mm^4	Bending Stiffness (E.Ixx) = Flexural rigidity	39800	N.m^2
Maximum safe bending moment*	4700	N.m	Maximum safe shear load	38	kN
Maximum safe tensile load	258	kN	Max. safe compressive load (short tube)**	233	kN
Maximum safe torsional load		N.m	Maximum safe internal pressure load		bar

* All given "safe" loads include a factor of safety of approximately 2.0 over breaking load. Eg. if safe load is 1000 N.m, then breaking load should be at least 2000 N.m. Tubes can fail at lower than the indicated safe loads if subjected to point loads, or combined loads, or if they are damaged, have holes, scratches or any other inconsistency which could act as a stress concentrator. For this reason, all engineering design and calculations should be carried out by a qualified and experienced engineer. Etamax offers design services by qualified composites structural engineers. Please contact us for more information.

** Maximum safe compressive load applies to short lengths of tube only, as longer lengths can fail at lower loads by buckling.

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