Engineering, 23.08.2021 06:10, jacquilynfoster7

Stress relaxation: A stress of 1.5 MPa was required to stretch a 3-cm long aorta strip to 3.4 cm. After 2 hours in the same stretched position, the strip exerted a stress of 1.2 MPa. Assume the mechanical property of the aorta did not vary appreciably during the experiment. a) What is the relaxation time, assuming a simple exponential decay model? b) With the aorta strip staying in the same stretched position for the initial two hours, how much more time has to go past, for the stress exerted by the aorta strip to reach a value of 1.1 MPa? Please indicate time in hours: minutes.

Answers: 3

Show answers

Other questions on the subject: Engineering

Engineering, 03.07.2019 23:20, abbz13

Two technicians are discussing the intake air temperature (iat) sensor. technician a says that the computer uses the iat sensor as a backup to the engine coolant temperature (ect) sensor. technician b says that the powertrain control module (pcm) will subtract the calculated amount of fuel if the air measures hot. who is correct

Answers: 3

continue

Engineering, 04.07.2019 18:10, tjeffers90028

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.

Answers: 1

continue

Engineering, 04.07.2019 18:10, oshawn108

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg. k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m. k

Answers: 2

continue

Engineering, 04.07.2019 18:10, krystabrewer3

What are the two (02) benefits, which may result from a successful implementation of preventive maintenance (pm) program in an organization? (clo3)a)- lean manufacturing b)-overlapping responsibilities c)-the planner is not qualified d)-accurate contractor information e)-reduction in equipment redundancies f)-accurate stores information

Answers: 3

continue

Do you know the correct answer?

Stress relaxation: A stress of 1.5 MPa was required to stretch a 3-cm long aorta strip to 3.4 cm. Af...