Answer: Data Driven Design Test Problem

For this problem, you are asked to use the imported Von Mises stress data to shell and lightweight a bracket, reinforcing the areas of the model experiencing the greatest stress. Let’s walk through a solution to this problem together.

We’ll begin by creating a stress field from our point map. We’ll use the Field From Point Map block, then smooth in our field. Next, we’ll determine our minimum and maximum stress from that Point map using the Point map values property from our Point map variable.

Next, we’ll create a ramp for our shell. We’ll use our minimum and maximum stresses for our In Min and In Max, and we’ll use negative values for our Out Min and Out Max values so that we shell our part inward. Next, we’ll use an Offset Body to shell our part inward using our initial implicit bracket and the ramp that we’ve created. Finally, we’ll use a Boolean Subtract to remove this infill volume from our implicit bracket. Using the hotkey X to create a section cut, we see that we now have this variable shell.

Similarly, we’ll ramp our lattice with a ramp using the minimum and maximum values that we pulled from our Point map. We’ll create a ramp with our Min and Max stress, and we’ll set an Out Min and an Out Max for our lattice thickness. We’ll add a BCC Graph Unit Cell and a Rectangular Cell Map across our infill volume. Then, we’ll create a lattice using the Periodic Lattice block along with our unit cell, cell map, and ramp that we created for our thickness. We’ll use a Boolean Intersect to trim this to the infill volume, and finally, we’ll use a Boolean Union to merge this with our varying shell.