Publications, Grants & Interests

• Hummel, S.R., G196, Standard Test Method for Galling Resistance of Material Couples, 2008, ASTM. This test method is based on my research on galling wear. Under jurisdiction of the ASTM Technical Committee G02 on Wear and Erosion.
• News Release

• Hummel, S.R., Director, Howard Hughes Medical Institute Grant Proposal, Bioengineering Across the Curriculum: A Multidisciplinary Collaboration in Bioengineering and Biomedical Science Education and Research, submitted by Lafayette College, Decision in May 2008.

• Hummel, S.R., and Helm, J., “New parameter to compare galling results”, Journal of Tribology, submitted September 2008, under peer review.

• Hummel, S.R., Development of a Galling Resistance Test Method with a Uniform Stress Distribution, Tribology International, Vol. 41, no. 3, pp 175-180, 2008.

• Waite, R., Hummel, S.R., and Herr, A, Dalton, G., Analysis of the Stress Field in a Threshold Galling Test, Tribology International, Vol. 39, pp. 1421-1427, 2006.

• Hummel, S.R., and Partlow, B., Comparison of threshold galling results from two testing methods, Tribology International, Vo. 37, pp. 291-295, 2004.

• Hummel, S.R., and Partlow, B., Threshold galling load and frictional behavior of stainless steel couples in line contact, Wear, Vol. 255, pp. 504-508, 2003.

• Hummel, S.R., An Application of Frictional Criteria for Determining Galling Thresholds in Line Contact Tests, Tribology International, Vol. 35, pp. 801-807, 2002.

• Hummel, S.R., New test method and apparatus for measuring galling resistance, Tribology International, Vol. 34, pp. 593-597, 2001.

• Hummel, S.R., Hossain, K., and Hayes, G.T., Biaxial Stress Relaxation of High Impact Polystyrene (HIPS) Above the Glass Transition Temperature, Polymer Engineering and Science, Vol. 41, no. 3, pp. 566, 2001.

• Hummel, S.R. and Nied, H.F., Procedure to Experimentally Measure the Viscoelastic Constitutive Behavior of Heated Polymer Sheets, Experimental Mechanics, Vol. 44, No. 4, pp. 381-386, (August 2004). 

• Hummel, S.R. and Chassapis, C., Configuration design and optimization of universal joints with manufacturing tolerances, Mechanism and Machine Theory, Vol. 35, 2000, pp. 463-476.

• Hummel, S.R. and Chassapis, C., Configuration design and optimization of universal joints, Mechanism and Machine Theory, Volume 33, Issue 5, 1998, pp. 479-490.

• Hummel, S.R., Nesbit, S.M., DeRossett, T.A.,  Load cell multi-course design project, ASEE Annual Conference, Albuquerque, NM, 2001.

• S.S. Moor, E.P. Saliklis, S.R. Hummel and Y. Yu, "A Press RO System: An Interdisciplinary Reverse Osmosis Project for First Year Engineering Students," Chemical Engineering Education, Vol. 37, No. 1, 2003, pp. 38-44.

• NSF Grant Number: 0079397. Acquisition of a Solid Freeform Fabrication Laboratory for Interdisciplinary Research and Education in Manufacturing through a University/Industry Consortium.

• National Science Foundation (NSF) Research Opportunity Award (ROA) supporting my research on the determination of the mechanical properties of heated polymeric sheets.