1. ANSYS Example: Linear Elastic Stress Analysis of a 3D Bracket The bracket shown below is bolted to a beam at the four bolt holes located in the base. Washers with an outer diameter of 0.7 in are used with the 0.5 in bolts. The bracket is then loaded by a force F of magnitude 2500 lb, at a 45 angle to the horizontal through the hole in the flange. The bracket is made of steel (E = 30 Mpsi, = 0.3).

Problems to solve2. Analysis of a 3D solid object

Physical Problem: See figure.Problem Description: Model the object using solid Tetrahedral 10 node element.

Material: Assume the structure is made of steel with modulus of elasticity E=200 GPa.

Boundary conditions: The object is fixed around the inner surface of the hole.

Loading: The object is loaded uniformly (1000 N/cm2) along the top surface of the extended beam.

Objective: To plot deformed shape.

To determine the principal stress and the von Mises stress. (Use the stress plots to determine these. Do not print the stress list)

What is the maximum load the object can take. Clearly mention the yield stress that you have assumed for steel. Also assume factor of safety of 1.25.

3. Model the object using solid Tetrahedral 10 node element.

Material: Assume the structure is made of steel with modulus of elasticity E=200GPaand a Poisons Ratio of 0.3.

Boundary conditions: The hammer is fixed at the base..

Loading: The object is has a point force of 100N at the head.

Objective:To plot deformed shape.

To determine the principal stress and the vonMisesstress. (Use the stress plots to determine these. Do not print the stress list)

What is the maximum load the object cantake.Clearly mention the yield stress that you have assumed for steel. Also assume factor of safety of 1.25.

Dimensions:

10 cm hexagonal handle, radius 0.02m, theta=300 at (0,0)15 cm circular solid, radius 0.015m at 0,0)5 cm hexagonal head joint, radius 0.04m, theta=270 at (0,0) 18 cm top cone, radius=0.03mCreate the hexagonal solid defining the grip for the handle.

Shift theWorkPlanethe axial length of the hexagonal solid and create the circular solid defining the section between the handle and the head of the hammer.

Shift theWorkPlaneagain and create the hexagonal head of the hammer.

Now rotate theWorkPlaneand shift it such that the cone is created 0.09m in the correct direction from the axial center of the handle.

Now overlap the conic section and the hexagonal volume defining the head of the hammer. Once these are married into one volume,add the volumes together such that the hammer is one full volume.

Define the Material Properties of theSteelhammer (Elastic Modulus and Poisons Ration are the important qualities)

Define the Element Properties as a Tet 10 node Structural Solid.

Mesh the hammer. (Do so by picking all lines and setting the element edge length to 0.01.)

Apply the boundary conditions. (StructuralDisplacement on the bottomfaceof the handle equal to zero, and a structural force / moment on a node closest to the center of the hammer head as possible equal to 100N in the X direction. If the hammer head is oriented properly then this value should be directed perpendicularly into the face of the hammers head.)

Solve

List the nodal results of the solution with respect to all degrees of freedom.

Plot the nodal solution with respect to all degrees of freedom. Show both the deformed andundeformed shape of the hammer.