Define the following terms: modulus of elasticity, yield point, resilience, ultimate tensile strength, fracture stress, plastic strain, elastic strain, elastic strain relaxation, elastic response, plastic response, strain hardening, and toughness; what is the relationship between engineering strain () and true strain (e)? derive a mathematical relationship between engineering strain  and true strain e, and sketch their variation with stress

Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.

Apressure vessel with an r/t 20 cannot be treated as thin walled vessel. a)-trune b)- false