3. Application of Schmid's law How to determine the active S.S. for all the equivalent SS (2 Determine the active S.S. by Reflection Rule Orientation cell for cubic crystals Given: BCC Crystal having 110]<111>slip system Determine: active slip system in response to tensile loading along
3. Application of Schmid’s law ① How to determine the active S.S. for all the equivalent S.S. ② Determine the active S.S. by Reflection Rule. • Orientation cell for cubic crystals. • Given: BCC Crystal having {110}<111>slip system. Determine : active slip system in response to tensile loading along
Solution a. draw a orientation cell b. Label the loading direction in the cell c. Determine the active S.S. by reflection rule
Solution: a. Draw a orientation cell. b. Label the loading direction in the cell. c. Determine the active S.S. by reflection rule
4. Determine the active slip systems by Schmidt's law (1 Draw a standard projection 00 110 11 o111 010 011 o11 010 111 101 line 110 110 -y line 100 e
4. Determine the active slip systems by Schmidt's law ① Draw a standard projection x=z line x=y line y=z line
Label the loading direction in standard projection Mi Irror rule Umax=(cos ncoso)
② Label the loading direction in standard projection. ③ Mirror rule max max = (cos cos)
given u v w, determine active slip system 100 110 110 case1 along [4211 010 011 011 010 FCC, orientation triangle [l110100 11 slip system is (11 1)[1011 110 110 100 100 case2 according to the mirror-refraction oIo o1 ou1r along [215 10 orientation triangle: [101]-[111]-[001 11 011 01 rule the active slip system is 111 (111[o11 101 110 110 100
case1. along FCC, orientation triangle : slip system is [421] [111][110][100] (11 1)[101] case2. along orientation triangle: according to the mirror-refraction rule the active slip system is [215] (111)[011] given [u v w], determine active slip system [101]−[111]−[001]