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Engineering  |  FURI

Lily Catherine Baye-Wallace

Hometown: Phoenix, Arizona, United States | Graduation Date: Fall 2020
Mechanical engineering

Kinetics of Dynamic Damage Growth in Metals from Characterization and Simulations of Shock Loading Experiments

Research Theme: Security
FURI: Spring 2020

Understanding the mechanisms of damage evolution (spall) in metallic materials undergoing shock loading is key to predicting the performance of armor systems. Simulations of polyhedral voids will be performed using finite element models to investigate material and geometric effects on the growth behavior of these voids. Results will be compared to geometric and crystal orientation data obtained via specialized crystallographic (OIM) and image (ImageJ) processing software from recovered testing samples. The current working hypothesis is the shape of spall-induced voids is strongly influenced by the directionality in elastic and plastic properties resulting from material anisotrophy.

Other Projects

Kinetics of Dynamic Damage Growth in Metals from Characterization and Simulations of Shock Loading Experiments

Research Theme: Security
FURI: Fall 2019

Understanding the mechanisms for damage nucleation and growth is key to developing reliable models to estimate and predict the performance of armor and defense systems. Simulations of spherical and polyhedral voids will be performed using finite element models in ABAQUS to study the interaction between these voids and shock waves using models for material response developed specifically for this application. These models will be compared to experimental data. The current working hypothesis is that the interaction between voids is strongly affected by the directionality in elastic and plastic properties resulting from material anisotropy.

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