ABS201Y1 Lecture Notes - Truss Bridge, Pressure Vessel, Modulus Guitars
Document Summary
1 hp = 746 w mass suspended by massless spring (l. 08, sept. 26): f = f=natural frequency of spring, k=spring constant, m=mass, 0= initial deflection caused by mass alone (in mm) Resilience ability of object to absorb energy without damage. Toughness ability of object to absorb energy without breaking. Pfail=failure load, a=cross-sectional area of rod, break=breaking stress of rod. Height required to drop weight down rod to break rod (l. 09, sept. 27): maximum loss of pe= 0. 5* pfail * extension below original position: height above initial position: Max height to drop object (l. 09, sept. 27): max strain energy without damage. Pemax = area under p- curve before yield plateau (triangle) Safe stress (l. 09, sept. 27): safe stress 60% yield stress. 82wlhh e08. 1521 mk breakfailap ealpfail weightpexmax xhweightpexmax ealpxxhyield design of spherical pressure vessel (l. 10, sept. 28) Design of cylindrical pressure vessel (l. 10, sept. 28) A horizontal rip always occurs first, because c = 2 l.
