{"id":25,"date":"2013-02-26T20:39:52","date_gmt":"2013-02-26T20:39:52","guid":{"rendered":"http:\/\/faculty.engineering.ucdavis.edu\/template\/?page_id=25"},"modified":"2022-04-13T10:24:09","modified_gmt":"2022-04-13T18:24:09","slug":"biography","status":"publish","type":"page","link":"https:\/\/faculty.engineering.ucdavis.edu\/hill\/biography\/","title":{"rendered":"Interests and Background"},"content":{"rendered":"<h3>Technical Interests:<\/h3>\n<ul>\n<li>Fatigue and fracture: analysis, testing, and design<\/li>\n<li>Residual stress measurement<\/li>\n<li>Structural integrity and damage tolerance (aircraft structure, mechanical systems)<\/li>\n<li>Effects of maintenance quality on aircraft structural performance<\/li>\n<li>Laser shock peening, cold working, and other residual stress treatments for metals<\/li>\n<li>Finite element simulation for structural analysis<\/li>\n<li>Experimental mechanics<\/li>\n<li>Measurements in general (<a href=\"https:\/\/www.mtiinstruments.com\/knowledge-center\/history-of-measurements\/\" target=\"_blank\" rel=\"noopener\">here<\/a> is an interesting history of measurements)<\/li>\n<\/ul>\n<h3>Current Research:<\/h3>\n<ul>\n<li>Laser shock peening: process characterization, effects on fatigue behavior<\/li>\n<li>Prediction of fatigue and fracture behavior for residual stress bearing materials<\/li>\n<li>Improvement of metallic structures using residual stress treatments<\/li>\n<li>Correction of fracture and fatigue data for residual stress effects<\/li>\n<li>Measurement of residual stress in metallic and metallic-ceramic composites<\/li>\n<li>Development of the contour method for residual stress measurement<\/li>\n<li>Standardization of the slitting method for residual stress measurement<\/li>\n<\/ul>\n<h3>Education:<\/h3>\n<ul>\n<li>PhD in Mechanical Engineering, September, 1996. Stanford University, Stanford, CA. Department of Mechanical Engineering. Dissertation research described below. Advisors: Drew V. Nelson and Sheri Sheppard.<\/li>\n<li>MS in Mechanical Engineering, May 1991. University of Arizona, Tucson, AZ. Course work emphasis in probabilistic design and reliability, mechanics, and structural dynamics. Advisor: Paul H. Wirsching.<\/li>\n<li>BS in Mechanical Engineering, May 1989. University of Arizona, Tucson, AZ.<\/li>\n<\/ul>\n<h3>Experience<\/h3>\n<ul>\n<li>Professor, University of California, Davis, 5\/10 &#8211; Present<\/li>\n<li>Associate Professor, University of California, Davis, 7\/04 &#8211; 5\/10<\/li>\n<li>Founder and Chief Executive,&nbsp;<a href=\"http:\/\/www.hill-engineering.com\/\" target=\"_blank\" rel=\"noopener\">Hill Engineering, LLC<\/a>&nbsp;(a UC Davis start-up), 1\/05 &#8211; Present<\/li>\n<li>Assistant Professor, University of California, Davis, 9\/96 &#8211; 6\/04<\/li>\n<li>Dissertation Research, Stanford University. 9\/92 &#8211; 8\/96\n<ul>\n<li>Title: Determination of Residual Stress Based on the Estimation of Eigenstrain<\/li>\n<li>Developed a hybrid experimental-analytical method to determine sub-surface residual stress, results presented at ASME PVP95 and ASME PVP96.<\/li>\n<li>Investigated the influence of residual stress on fatigue and fracture.<\/li>\n<li>Produced literature review on fatigue crack propagation in welded joints.<\/li>\n<li>Wrote grant proposals, final and interim reports.<\/li>\n<\/ul>\n<\/li>\n<li>Consultant, Sverdrup Technology, Ames Division. 3\/95 &#8211; 12\/95\n<ul>\n<li>Quantified the influence of residual stress on the initiation of ductile crack growth.<\/li>\n<li>Findings accepted for publication.<\/li>\n<\/ul>\n<\/li>\n<li>Consultant, Apple Computer. 7\/94 &#8211; 12\/94\n<ul>\n<li>Performed failure investigation for flat panel display assemblies.<\/li>\n<li>Presented findings to high-level management of Apple and display vendor.<\/li>\n<\/ul>\n<\/li>\n<li>Student Assistant, NASA Ames R. C., Mechanical Systems Branch. 6\/91 &#8211; 6\/94\n<ul>\n<li>Studied ductile crack initiation of small specimens as part of a team.\n<ul>\n<li>Performed numerical modeling and experimental observation of crack initiation.<\/li>\n<\/ul>\n<\/li>\n<li>Characterized fatigue crack growth behavior of aluminum alloy welds.<\/li>\n<li>Conducted fatigue testing of full-scale, proof-loaded pressure vessel.\n<ul>\n<li>Presented findings at ASME PVP93.<\/li>\n<li>Work published in the Journal of Pressure Vessel Technology.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>&nbsp;Professional Memberships:<\/h3>\n<ul>\n<li>ASME &#8211; member PVP Division, Materials and Fabrication Committee<\/li>\n<li>ASTM &#8211; member Committee E08 on Fatigue and Fracture<\/li>\n<\/ul>\n<h3>&nbsp;<\/h3>\n","protected":false},"excerpt":{"rendered":"<p>Technical Interests: Fatigue and fracture: analysis, testing, and design Residual stress measurement Structural integrity and damage tolerance (aircraft structure, mechanical systems) Effects of maintenance quality on aircraft structural performance Laser shock peening, cold working, and other residual stress treatments for metals Finite element simulation for structural analysis Experimental mechanics Measurements \u2026 <a class=\"continue-reading-link\" href=\"https:\/\/faculty.engineering.ucdavis.edu\/hill\/biography\/\"> Continue reading <span class=\"meta-nav\">&rarr; <\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"ngg_post_thumbnail":0,"footnotes":""},"class_list":["post-25","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/faculty.engineering.ucdavis.edu\/hill\/wp-json\/wp\/v2\/pages\/25","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/faculty.engineering.ucdavis.edu\/hill\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/faculty.engineering.ucdavis.edu\/hill\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/faculty.engineering.ucdavis.edu\/hill\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/faculty.engineering.ucdavis.edu\/hill\/wp-json\/wp\/v2\/comments?post=25"}],"version-history":[{"count":10,"href":"https:\/\/faculty.engineering.ucdavis.edu\/hill\/wp-json\/wp\/v2\/pages\/25\/revisions"}],"predecessor-version":[{"id":288,"href":"https:\/\/faculty.engineering.ucdavis.edu\/hill\/wp-json\/wp\/v2\/pages\/25\/revisions\/288"}],"wp:attachment":[{"href":"https:\/\/faculty.engineering.ucdavis.edu\/hill\/wp-json\/wp\/v2\/media?parent=25"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}