Engineering, 22.04.2020 21:43 alexkrol30083
Consider a single crystal of some hypothetical metal that has the BCC crystal structure and is oriented such that a tensile stress is applied along a [121] direction. If slip occurs on a (101) plane and in a direction, compute the stress at which the crystal yields if its critical resolved shear stress is 2.9 MPa.
Answers: 1
between the slip direction [121] and [111]![\lambda = cos^{-1} [\frac{(u_1 u_2 + v_1 v_2 + w_1 w_2}{\sqrt{u_1^2 + v_1 ^2+ w_1^2})\sqrt{( u_2^2 + v_2^2 + w_2 ^2)} } ]](/tpl/images/0619/2658/9a22c.png)
are the directional indices ![\lambda = cos ^-[ \frac{(1) (-1) + (2) (1) + (1) (1)}{\sqrt{((1)^2 +(2)^2 + (1)^2)}\sqrt{((-1)^2 + (1)^2 + (1)^2 ) } } ]](/tpl/images/0619/2658/874e0.png)
![= cos^{-1} [\frac{2}{\sqrt{6} \sqrt{3} } ]](/tpl/images/0619/2658/712dc.png)
between the direction [121] and [101]![\O = cos^{-1} [\frac{(u_1 u_3 + v_1 v_3 + w_1 w_3}{\sqrt{u_1^2 + v_1 ^2+ w_1^2})\sqrt{( u_3^2 + v_3^2 + w_3 ^2)} } ]](/tpl/images/0619/2658/df225.png)
, 2 for 
, 1 for 
, 1 for 
, 0 for 
, and 1 for 
![\O = cos^{-1} [\frac{1* 1 + 2*0 + 1*1 }{\sqrt{1^2 + 2^2 + 1^2 } \sqrt{(1^2 + 0^2 + 1^2 )} } ]](/tpl/images/0619/2658/cf8f4.png)
![\O = cos^{-1} [\frac{2}{\sqrt{6} \sqrt{2} } ]](/tpl/images/0619/2658/1f76c.png)
Another question on Engineering
Engineering, 03.07.2019 14:10
Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.
Answers: 3
Engineering, 03.07.2019 15:10
If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.
Answers: 1
Engineering, 04.07.2019 18:10
Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.
Answers: 2
Engineering, 04.07.2019 18:10
The higher the astm grain size number, the finer the gran is. a)-true b)-false
Answers: 2
You know the right answer?
Consider a single crystal of some hypothetical metal that has the BCC crystal structure and is orien...
Questions
Mathematics, 16.12.2020 19:50
History, 16.12.2020 19:50
Social Studies, 16.12.2020 19:50
Mathematics, 16.12.2020 19:50
Mathematics, 16.12.2020 19:50
Chemistry, 16.12.2020 19:50
Mathematics, 16.12.2020 19:50
Health, 16.12.2020 19:50
Health, 16.12.2020 19:50
