@article{pearson_zikry_wahl_2009, title={Computational design of thin-film nanocomposite coatings for optimized stress and velocity accommodation response}, volume={267}, ISSN={["1873-2577"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-65949109936&partnerID=MN8TOARS}, DOI={10.1016/j.wear.2008.11.027}, abstractNote={The tailoring of thin-film coatings comprised of high strength nano-grained constituents is investigated by new microstructurally based finite-element techniques for applications related to the wear, durability, and performance of these coatings over a broad range of temperatures and loading conditions. These coatings are comprised of brittle phases, diamond-like carbon and partially stabilized zirconia and ductile constituents, such as gold and molybdenum. The effects of wear, contact transfer films, grain sizes and distributions, grain spacing and strength are used to determine the optimal thin-film coating compositions. Comparisons are made with experimental measurements pertaining to durability and wear for validation and for the development of design guidelines for thin-film nanocomposite coatings.}, number={5-8}, journal={WEAR}, author={Pearson, J. D. and Zikry, M. A. and Wahl, K.}, year={2009}, month={Jun}, pages={1137–1145} }
 @article{pearson_zikry_wahl_2009, title={Microstructural modeling of adaptive nanocomposite coatings for durability and wear}, volume={266}, ISSN={["1873-2577"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-64749097639&partnerID=MN8TOARS}, DOI={10.1016/j.wear.2009.02.004}, abstractNote={Adaptive thin-film nanocomposite coatings comprised of crystalline ductile phases of gold and molybdenum disulfide, and brittle phases of diamond like carbon (DLC) and ytrria stabilized zirconia (YSZ) have been investigated by specialized microstructurally based finite-element techniques. One of the major objectives is to determine optimal crystalline and amorphous compositions and behavior related to wear and durability over a wide range of thermo-mechanical conditions. The interrelated effects of microstructural characteristics such as grain shapes and sizes, local material behavior due to interfacial stresses and strains, varying amorphous and crystalline compositions, and transfer film adhesion on coating behavior have been studied. The computational predictions, consistent with experimental observations, indicate specific interfacial regions between DLC and ductile metal inclusions are critical regions of stress and strain accumulation that can be precursors to material failure and wear. It is shown by varying the composition, resulting in tradeoffs between lubrication, toughness, and strength, the effects of these critical stresses and strains can be controlled for desired behavior. A mechanistic model to account for experimentally observed transfer film adhesion modes was also developed, and based on these results, it was shown that transfer film bonding has a significant impact on stress and wear behavior.}, number={9-10}, journal={WEAR}, author={Pearson, James D. and Zikry, Mohammed A. and Wahl, Kathryn J.}, year={2009}, month={Apr}, pages={1003–1012} }
 @article{pearson_zikry_prabhugoud_peters_2007, title={Global-local assessment of low-velocity impact damage in woven composites}, volume={41}, ISSN={["1530-793X"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-35448962064&partnerID=MN8TOARS}, DOI={10.1177/0021998307078734}, abstractNote={ Global measurements from low-velocity impact experiments and local strain measurements from embedded and surface mounted optical fiber Bragg grating (FBG) sensors were used to obtain failure maps for two- and three dimensional woven composites. These maps delineated five distinct regimes spanning behavior from initial impact to complete penetration. Sensor and host damage were separated by signal intensity and the evolution of Bragg peaks due to repeated impact loads. The results indicate that a local-global framework can be used to monitor damage progression in different host materials, and hence it can be potentially used to mitigate damage. }, number={23}, journal={JOURNAL OF COMPOSITE MATERIALS}, author={Pearson, J. D. and Zikry, M. A. and Prabhugoud, M. and Peters, K.}, year={2007}, month={Dec}, pages={2759–2783} }
 @article{pearson_zikry_prabhugoud_peters_2007, title={Measurement of low velocity and quasi-static failure modes in PMMA}, volume={28}, ISSN={["0272-8397"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-34250820545&partnerID=MN8TOARS}, DOI={10.1002/pc.20287}, abstractNote={Abstract}, number={3}, journal={POLYMER COMPOSITES}, author={Pearson, J. D. and Zikry, M. A. and Prabhugoud, M. and Peters, K.}, year={2007}, month={Jun}, pages={381–391} }