(a) Assess the stability of the wedge formed from intersection of the two joint planes with the face of a wall slope dipping 56° at dip direction 329°, or briefly shown as (56°/329°). The dip and dip direction for the two joint sets are as follows. Joint Set 1: (41°/51°), Joint Set 2: (40°/326°). Joint planes are assumed to have no cohesive resistance (C = 0) and their friction angle (‹= phi) is assumed to be the same for both joint sets and equal to 26°.

please help solve and explain and include FBD please

A stepped bar is fixed at end C. The bar has a cross sectional area of 1000 mm² in AB, and a 2000 mm² cross sectional area in BC. Young's Modulus of the bar's material is 200 GPa. A horizontal force of 100 kN is applied to cross section B. There is a gap b = 0.2mm between right end A and the rigid wall. If the bar is stretched to contact the rigid wall and is welded to it, determine the minimum horizontal force F that needs to be applied to end A. 300 mm 400 mm F A 0.2 mm B 100 KN

Could someone show me how to this this problem? Thank you in advance!

Problem 1: Three vertical posts AD, BE, and CF are held between two horizontal rigid plates. Posts AD and CF are made of steel (Es = 200 GPa) and have cross sectional areas of 1000 mm² each. Post BE is made of aluminum (Ea = 73.1 GPa) and has a cross sectional area of 1500 mm². Initially, there is a small gap of 0.1 mm between BE and the top horizontal plate. Then a vertical force of P = 410 kN is applied, which is more than sufficient to close the gap completely. D -0.5 m B E -0.5 m- 0.4 m F Determine the normal stresses in posts AD, BE, and CF (both magnitude and sign).

Q2

Please help. Written on paper not typed on computer or keyboard please. Need help on all questions. Please include all units, steps to the problem and information such as its direction or if it is in compression or tension. Thx.

Please help. Written on paper not typed on computer or keyboard please. Need help on all questions. Please include all units, steps to the problem and information such as its direction or if it is in compression or tension. Thx.

4) A steel column is braced at the midpoint, C, as shown below. The brace only acts in the x-y plane. The column dimensions are L=15 in, a=0.25 in, and b=1 in. The material properties are Sy=36ksi, and E=30 x 106 psi. What is the critical force, P, for a factor of safety of SF=3? B L/2 14: L/2 y

Assuming a welded rail line, 1km long, that is unconstrained except at the ends. The rail has a cross sectional profile as given. If the rail was installed at a temperature of 20°C, at what temperature would the rail buckle? How much pre-stress would need to be applied to the rail in order to prevent buckling up to a maximum operating temperature of 40°C? Rail profile 46E1 Equivalent profile name SBBI Section weight kg/m 46.17 Rail height mm (H) 145.00 X Y Y Head width mm (C) 65.00 A H Web thickness mm (A) 14.00 Foot width mm (P) 125.00 Moment of inertia, Ixx cm* 1641.10 Moment of inertia, lyy cm* 298.20