Multiaxial Miniaturized Load Cell for Measuring Forces Acting Through a Sternotomy

Baleani, Massimiliano; Peroni, Clara Lisa; Cristofolini, Luca; Traina, Francesco; Silbermann, M.; Sawaed, S.; Viceconti, Marco

doi:10.1111/j.1747-1567.2006.00058.x

“…A multiaxial strain gage load cell is described in Ref. 19 for live measurement of forces during sternotomy surgery.…”

Section: Introductionmentioning

confidence: 99%

Load Cell Training for the Students of Experimental Stress Analysis

Olmi

¹

2016

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Many numerical models are nowadays available for the structural analysis of complexly shaped structures. However, a critical problem consists of the estimation of the actual loads that a structure withstands. The most proper way to determine them under service conditions consists of executing in-field tests, where load cells have an important role. This article deals with a didactic project at the University of Bologna, focused on the development of strain gage load cells, from design to calibration and use. Details are provided on the course units involved and on the levels of teaching, and three case studies are presented. Two case studies deal with the design of decoupled load cells, using simple beam geometry. Students had the opportunity to become confident with the principles of mechanics and to tackle the not trivial activities like calibration by decoupled load application and determination of the related matrices. The third one deals with the development of a load cell for impact loads, where the students had the chance to observe a practical application of the studied Wheatstone bridge connection, to participate in on-field tests, and to better understand the close relationship between experimentation and design.

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“…With the exact force distribution along the sternum midline unknown, most biomechanical tests are completed with a loading approximation that evenly distributes the disruptive force on a lateral plane. But the need for a versatile bench that could perform symmetrical as well as asymmetrical loading-assuming future research 14 eventually provides additional information on the subject-was deemed necessary.…”

mentioning

confidence: 99%

Test Bench and Methodology for Sternal Closure System Testing

Chartrand

¹

,

Braïlovski

²

,

Baril

³

2009

Experimental Techniques

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Load Cell Training for the Students of Experimental Stress Analysis

Olmi¹

2015

Exp Techniques

1

0

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Many numerical models are nowadays available for the structural analysis of complexly shaped structures. However, a critical problem consists of the estimation of the actual loads that a structure withstands. The most proper way to determine them under service conditions consists of executing in-field tests, where load cells have an important role. This article deals with a didactic project at the University of Bologna, focused on the development of strain gage load cells, from design to calibration and use. Details are provided on the course units involved and on the levels of teaching, and three case studies are presented. Two case studies deal with the design of decoupled load cells, using simple beam geometry. Students had the opportunity to become confident with the principles of mechanics and to tackle the not trivial activities like calibration by decoupled load application and determination of the related matrices. The third one deals with the development of a load cell for impact loads, where the students had the chance to observe a practical application of the studied Wheatstone bridge connection, to participate in on-field tests, and to better understand the close relationship between experimentation and design.

show abstract

Multiaxial Miniaturized Load Cell for Measuring Forces Acting Through a Sternotomy

Cited by 3 publications

References 15 publications

Load Cell Training for the Students of Experimental Stress Analysis

Load Cell Training for the Students of Experimental Stress Analysis

Test Bench and Methodology for Sternal Closure System Testing

Load Cell Training for the Students of Experimental Stress Analysis

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