Question 4. Critical resolved shear stress in a single crystal. (10 pts total) (a) Given: A metal single crystal with a

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Question 4 Critical Resolved Shear Stress In A Single Crystal 10 Pts Total A Given A Metal Single Crystal With A 1 (153.5 KiB) Viewed 39 times

Question 4. Critical resolved shear stress in a single crystal. (10 pts total) (a) Given: A metal single crystal with a cross-section (10 mm×10 mm) and gauge length (25 mm) is loaded as shown in the figure. A tensile force is applied and only one slip system is activated. The applied force causing the crystal to yield is: Fyield ​=6500 N. The crystal has been oriented so that both normal to the slip plane and the slip direction in the active slip system form 45∘ angles with the tensile axis. What is the critical resolved shear stress (in MPa) of this metal? (5 pts) Note 1: 1 N/mm2=1MPa; Note 2: For full credit, you must write the calculation processes as well. (b) Consider a single crystal of Al (FCC) oriented such that a tensile stress is applied along a [100] stress of 350MPa, compute the critical resolved shear stress. (5 pts) Note: For full credit, you must write the calculation process as well.