Engineering, 05.02.2021 21:50 aylineorozco836
For this particular problem, one of the principal directionssimply points in the zdirection, or <0 0 1>. This means we can present the transformation as rotation in the xyplanealone, rotating the stress tensor about the zaxis. Calculate the two angles of rotation for the principal stresses in this xyplanefor the associated eigenvectors, where
θ_xy= tan^-1 (ny/nx)
Show that these two principal directions are orthogonal, first by the dot product of the two principal directions, then by showing that the angle formed between them is 90 degrees.
Answers: 1
Engineering, 04.07.2019 18:10
Which of the following refers to refers to how well the control system responds to sudden changes in the system. a)-transient regulation b)- distributed regulation c)-constant regulation d)-steady-state regulation
Answers: 1
Engineering, 04.07.2019 18:20
Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 mpa and -10°c at a rate of 0.05 ka/s and leaves at 0.8 mpa and 50°c. the refrigerant is cooied in the condenser to 0.72 mpa and 26'c. it is then throttled to 0.15 mpa. sketch the t-s diagram for the system and evaluate: 6) the rate of heat removai from the refrigerated space (kw), it) the power input to the compressor (kw), ii) the isentropic efficiency of the compressor (%), and iv) the cop of the refrigerator.
Answers: 2
Engineering, 06.07.2019 02:30
Around steel bar, made from material with a yield stress of 750mpa, is loaded so that it has stresses co locations of maximum normal stress and maximum shear stress. use maximum shear stress and maximum distortion energy theories to calculate the safety factors for initial yielding failures.
Answers: 3
Engineering, 06.07.2019 03:30
The load on a bolt consists of an axial pull of 10 kn together with a transverse shear force of 5 kn. the bolt material has a yield strength of syt syc 100 mpa. find the diameter of the bolt at factor of safety n-0.5, n 1 and n-2 using maximum shear stress theory
Answers: 3
For this particular problem, one of the principal directionssimply points in the zdirection, or <...
Mathematics, 13.01.2021 19:00
Mathematics, 13.01.2021 19:00
History, 13.01.2021 19:00
Mathematics, 13.01.2021 19:00
Mathematics, 13.01.2021 19:00
Mathematics, 13.01.2021 19:00
Mathematics, 13.01.2021 19:00
Computers and Technology, 13.01.2021 19:00
Geography, 13.01.2021 19:00