An AISI 1018 steel ball with 1-in diameter is used as a roller between a flat plate made from2024 T3 aluminum and a flat table surface made from ASTM No. 30 gray cast iron. Determinethe maximum amount of weight that can be stacked on the aluminum plate without exceedinga maximum shear stress of 20 kpsi in any of the three pieces. Assume Fig. 337, which isbased on a typical Poissons ratio of 0.3, is applicable to estimate the depth at which themaximum shear stress occurs for these materials.

ENGR 232 Dynamic Engineering Systems Lecture 2 Dr. Michael Ryan This Lecture • Two simple models: object with drag, mice and owls – Solution to D.E. Via separation of variables • Separable differential equations – Analytic Solutions – Closed form – Implicit form » Domain of solution » Qualitative solutions » Numerical solutions • Method of Integrating Factors 4/6/2015 ENGR 232 Winter 14-15 Week 2 2 Falling Objects: Increasing Model Complexity • A hailstone has mass m=0.025 kg an2 drag coefficient =0.007 kg/s. g = 9.8 m/sec • Taking motion d