Justification for a 2D versus 3D fingertip finite element model during static contact simulations

Abstract The biomechanical response of a human hand during contact with various products has not been investigated in details yet. It has been shown that excessive contact pressure on the soft tissue can result in discomfort, pain and also cumulative traumatic disorders. This manuscript explores the benefits and limitations of a simplified two-dimensional vs. an anatomically correct three-dimensional finite element model of a human fingertip. Most authors still use 2D FE fingertip models due to their simplicity and reduced computational costs. However we show that an anatomically correct 3D FE fingertip model can provide additional insight into the biomechanical behaviour. The use of 2D fingertip FE models is justified when observing peak contact pressure values as well as displacement during the contact for the given studied cross-section. On the other hand, an anatomically correct 3D FE fingertip model provides a contact pressure distribution, which reflects the fingertip’s anatomy.

[1]  S Riedel.  Consideration of grip and push forces for the assessment of vibration exposure. , 1995, Central European journal of public health.

[2]  Gregor Harih,et al.  Finite element evaluation of the effect of fingertip geometry on contact pressure during flat contact. , 2015, International journal for numerical methods in biomedical engineering.

[3]  R Wells,et al.  Quantifying exposure in occupational manual tasks with cumulative trauma disorder potential. , 1991, Ergonomics.

[4]  C Fransson-Hall,et al.  Sensitivity of the hand to surface pressure. , 1993, Applied ergonomics.

[5]  Shuxing Du,et al.  The study on intelligent technology integrating Ergonomics into industrial design , 2008, 2008 9th International Conference on Computer-Aided Industrial Design and Conceptual Design.

[6]  Joono Cheong,et al.  Postural variation of hand precision grips by object size , 2014 .

[7]  Ren G Dong,et al.  Finite element analysis of the penetrations of shear and normal vibrations into the soft tissues in a fingertip. , 2007, Medical engineering & physics.

[8]  D. E. Welcome,et al.  Contact pressure distribution at hand–handle interface: role of hand forces and handle size , 2005 .

[9]  Gregor Harih,et al.  Recommendations for tool-handle material choice based on finite element analysis. , 2014, Applied ergonomics.

[10]  P. Helm.  Clinical mechanics of the hand , 1986 .

[11]  Märt Reinvee,et al.  Utilisation of tactile sensors in ergonomic assessment of hand -handle interface: a review , 2014 .

[12]  Mahmut Eksioglu,et al.  Relative optimum grip span as a function of hand anthropometry , 2004 .

[13]  L. Punnett,et al.  Work-related musculoskeletal disorders: the epidemiologic evidence and the debate. , 2004, Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology.

[14]  Jasmin Kaljun,et al.  INTELLIGENT SUPPORT FOR DEFINING AESTHETICAL , ERGONOMICAL AND MATERIAL PROPERTIES OF DESIGNED PRODUCT , 2014 .

[15]  Jasmin Kaljun,et al.  Inteligentna podrška definiranju estetskih, ergonomskih i materijalnih karakteristika dizajniranog proizvoda , 2014 .

[16]  John Z. Wu,et al.  Three-dimensional finite element simulations of the mechanical response of the fingertip to static and dynamic compressions , 2006, Computer methods in biomechanics and biomedical engineering.

[17]  Alain Bernard,et al.  Real-time finite element finger pinch grasp simulation , 2005, First Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems. World Haptics Conference.

[18]  R. Howe,et al.  Dynamic contact of the human fingerpad against a flat surface. , 1999, Journal of biomechanical engineering.

[19]  D. Rempel,et al.  Work-related cumulative trauma disorders of the upper extremity. , 1992, JAMA.

[20]  E Berton,et al.  Does handle shape influence prehensile capabilities and muscle coordination? , 2014, Computer methods in biomechanics and biomedical engineering.

[21]  F. Foster,et al.  Ultrasonic and viscoelastic properties of skin under transverse mechanical stress in vitro. , 1998, Ultrasound in medicine & biology.

[22]  Dan Lämkull,et al.  Industrial customisation of digital human modelling tools , 2008 .

[23]  C F Estill,et al.  The NIOSH review of hand-arm vibration syndrome: vigilance is crucial. National Institute of Occupational Safety and Health. , 1998, Journal of occupational and environmental medicine.

[24]  J. Wu,et al.  Analysis of the dynamic strains in a fingertip exposed to vibrations: Correlation to the mechanical stimuli on mechanoreceptors. , 2006, Journal of biomechanics.

[25]  P Lemerle,et al.  Application of pressure mapping techniques to measure push and gripping forces with precision , 2008, Ergonomics.

[26]  R G Dong,et al.  Simulation of mechanical responses of fingertip to dynamic loading. , 2002, Medical engineering & physics.

[27]  R G Dong,et al.  Analysis of the contact interactions between fingertips and objects with different surface curvatures , 2005, Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine.

[28]  Barkawi Sahari,et al.  A review of constitutive models for rubber-like materials , 2010 .

[29]  Robert G. Radwin,et al.  Power hand tool vibration effects on grip exertions , 1987 .

[30]  D Chamoret,et al.  A novel approach to modelling and simulating the contact behaviour between a human hand model and a deformable object , 2013, Computer methods in biomechanics and biomedical engineering.