Abstract
This study investigates two methods to determine the contact area between a N95 filtering facepiece (NFF) respirator and a headform. Five size headforms (large, medium, small, long/narrow and short/wide) wear a NFF respirator (3M 8210) respectively. A biofidelity finite element model of headform is built to simulate its interaction with a NFF respirator. During the simulation, the respirator contacts the headform. Two methods are presented in this paper for determining contact areas: The first one is through the observation of contact pressure distribution. The assumption is that the contact area is the fraction of surface area with positive contact pressure. The second method is through extracting the intersecting area between deformed surfaces of the headform and NFF respirator. Finally, the experiment, which directly measures the dimensions of contact area between prototypes of the headform and the NFF respirator, validates the proposed methods.
Chapter PDF
Similar content being viewed by others
References
Dellweg, D., Hochrainer, D., Klauke, M., Kerl, J., Eiger, G., Kohler, D.: Determinants of Skin Contact Pressure Formation During Non-invasive Ventilation. Journal of Biomechanics 43, 652–657 (2010)
Friess, M.: Analysis of 3d Data for the Improvement of Respirator Seals-Final Report (2004)
Hidson, D.J.: Compotator-aided Design of a Respirator Facepiece Model. Defense Research Establishment Ottawa, Report, Ottawa (1984)
Johnson, K.L.: Contact Mechanics. Cambridge University Press, Cambridge (1985)
Lei, Z., Yang, J.: Toward High Fidelity Respirator and Headform Models. In: 1st International Conference on Applied Digital Human Modeling, Miami, Florida, July 17-20 (2010)
Lei, Z., Yang, J., Zhuang, Z.: Contact Pressure of N95 Filtering Face-Piece Respirators Using Finite Element Method. Computer Aided Design and Applications 7(6), 847–861 (2010)
Livermore software Technology Corporation, LS-DYNA Keyword User’s Manual. Version 971, LSTC, vol. I (May 2007)
Zhuang, Z., Bradtmiller, B.: Head-and-Face Anthropometric Survey of U.S. Respirator Users. Journal of Occupational and Environmental Hygiene 2, 567–576 (2005)
Zhuang, Z., Viscusi, D.: A New Approach to Developing Digital 3-D Headforms. In: SAE Digital Human Modeling for Engineering and Design, Pittsburgh, PA, USA (2008)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2011 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Lei, Z., Yang, J.(. (2011). Contact Area Determination between a N95 Filtering Facepiece Respirator and a Headform. In: Duffy, V.G. (eds) Digital Human Modeling. ICDHM 2011. Lecture Notes in Computer Science, vol 6777. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-21799-9_13
Download citation
DOI: https://doi.org/10.1007/978-3-642-21799-9_13
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-21798-2
Online ISBN: 978-3-642-21799-9
eBook Packages: Computer ScienceComputer Science (R0)