O'Reilly logo

Integrated Computational Materials Engineering (ICME) for Metals: Using Multiscale Modeling to Invigorate Engineering Design with Science by Mark F. Horstemeyer

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

7.6 BRIDGES 4 AND 8: MESOSCALE 1 FINITE ELEMENT SIMULATIONS: CONNECTIONS TO THE MESOSCALE 2 AND MACROSCALE

Once the void nucleation was modeled and quantified from the microscale FEA simulations, these mesoscale FEA simulations could be employed to study the void coalescence between voids which started from particles and voids that grew from casting porosity. Here, the particles and casting pores could realistically be included into the FEA. As Figure 7.31 illustrates, Bridge 4 takes these Mesoscale 1 FEA results and incorporates the void coalescence notion into the next higher length scale void–void coalescence study. The downscaling requirements from the macroscale were related to the definition of the void coalescence; hence, these Mesoscale 1 FEA results were used to help determine the important features for void interactions. Figure 7.31 illustrates the downscaling/upscaling bridge between the two length scales.

Figure 7.31 Bridge 4 between the Mesoscale 1 and macroscale levels related to void coalescence between voids that initiated from particles and voids that arose from the casting process.

c07f031

Bridge 8 is related to transferring the void nucleation results to the macroscale.

Figure 7.32 shows the upscaling per Bridge 3 in that the microscale results of void nucleation from particle fracture and particle-interface debonding has been quantified. The results from these Mesoscale ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required