A Tandem Momentum Trap for Dynamic Specimen Recovery During Split Hopkinson Pressure Bar Testing of Cancellous Bone
TypeArticles dans des revues avec comité de lecture
A novel method for dynamic specimen recovery using tandem momentum traps on an otherwise standard split Hopkinson pressure bar, is presented. The method is based on a pair of concentric tubes that are impedance matched to and co-axially aligned with the input bar and arranged to operate sequentially. The tandem momentum traps provide a single specimen loading event, of a predefined intensity and duration, without the need to initially offset the momentum traps from the input bar by accurate preset gaps. The method is relatively simple to set up and operate, which allows for routine specimen recovery during dynamic testing. The operation of the tandem momentum trap is demonstrated by an investigation of the dynamic mechanical properties of soft cancellous bovine bone specimens
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PROT, Marianne; CLOETE, Trevor John; SALETTI, Dominique; LAPORTE, Sébastien (Taylor and Francis, 2014)Not applicable
The behavior of cancellous bone from quasi-static to dynamic strain rates with emphasis on the intermediate regime PROT, Marianne; CLOETE, Trevor John; SALETTI, Dominique; LAPORTE, Sébastien (Elsevier, 2016)Previous studies, conducted using quasi-static and dynamic compression tests, have shown that the mechanical strength of cancellous bone is strain rate dependent. However, these studies have not included the intermediate ...
Fracture characterization in cancellous bone specimens via surface difference evaluation of 3D registered pre- and post-compression micro-CT scans PROT, Marianne; DUBOIS, Guillaume; CLOETE, Trevor John; SALETTI, Dominique; LAPORTE, Sébastien (Taylor & Francis, 2015)In recent years, increasingly stringent passenger vehicle safety requirements have led to a renewed interest in the fracture properties of bone. It has been shown that can- cellous bone architecture is strongly linked ...
DUBOIS, Guillaume; PROT, Marianne; LAPORTE, Sébastien; CLOETE, Trevor John (Taylor & Francis, 2015)The study of the bone fracture is an important issue for oste- oporosis and car safety. The behavior of cancellous bone is strongly linked to the micro-architecture, the strain rate (Prot et al. 2015), and the specimen ...
PROT, Marianne; SALETTI, Dominique; LAPORTE, Sébastien; PATTOFATTO, Stéphane; BOUSSON, Valérie (2014)Previous studies showed that in vivo evaluation of the fracture risk of cancellous bone can be assessed by identifying the relationships between its microarchitecture description extracted from clinical imaging and its ...