Exercise 2. The vessel (inner diameter ID=280 mm ), shown in Figure, is the reservoir of a truck. It is made of stainles

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Exercise 2 The Vessel Inner Diameter Id 280 Mm Shown In Figure Is The Reservoir Of A Truck It Is Made Of Stainles 1 (50.43 KiB) Viewed 33 times

Exercise 2. The vessel (inner diameter ID=280 mm ), shown in Figure, is the reservoir of a truck. It is made of stainless steel and it is loaded with gas at a nominal pressure p=200 bar: It is requested to: 1) Calculate the proper thickness of the cylinder considering a static load equal to 2 times the nominal pressure p (don't consider any additional safety factor). Consider that only discrete thicknesses with a step increment of 1 mm are commercially available (i.e. 1 mm,2 mm,3 mm,…) ); 2) Assess the fatigue life of the vessel, considering the operative pressure equals to 1.5 times the nominal pressure p. Once into operation at the nominal pressure, after a periodic inspection, a /mm decp crack is found on the internal surface (opened by circumferential stress) far from the boundaries. It is requested to: 3) Determine whether the crack is subjected to brittle failure when subjected to fatigue load 4) Determine the number of loading-unloading cycles the vessel can safely undergo to, considering a safety factor of 2 on the fracture toughness Kic. UTS=800MPaYS=600MPams​=0.8md​=1​ KIC​=55MPam​β=1.0065+0.3⋅ta​−4.5⋅(ta​)2+10⋅(ta​)3​ Paris law: C=2.8⋅10−12mm⋅(MPamm​)−m