Hi all, I'm trying to crack what is admittedly a homework question. I don't necessarily want you to just spit out the right answer for me, but if you could point me in the right direction it would be appreciated. A shelf for a hot air dryer is to be made from acrylic sheet. The shelf is simply supported as shown in Figure 1, and has width w = 500mm, thickness t = 8mm and depth b = 200mm. It must carry a distributed load of 50N at 60oC with a design life of 8000 hours of continuous use. How much will the shelf sag in that time? Essentially Figure 1 simply show's that the force is evenly distributed across the entire shelf, it's not a point load. We also have a graph of Creep Modulus (GPa) vs Time (s). 8000 hours * 60 seconds/hour = 480000s Reading the graph of 4.8x10^5 seconds, we have a Ec of ~2.5 GPa. Can anyone give me some pointers of a direction to go in from here? Thanks.