Abstract
Morphology of the crack surface of surgical bone cements has seldom been studied in the past despite the clinical relevance of cement failure. Previous studies on a specific cement type suggest that crack morphology depends on crack propagation rate. The objectives of this work were: (i) to develop a quantitative indicator for describing crack morphology; and (ii) to assess if dependency on crack-propagation rate is affected by cement formulation. Known crack surfaces were obtained from specimens under controlled loading conditions. Crack surface roughness was measured for different crack-propagation rates, and compared against the amount of cleaved pre-cured beads (measured with a semi-automated procedure based on micrographs). Such indicators were extremely robust, operator-independent, highly correlated, and sensitive to the type of fracture. Moreover, it was found that crack surface morphology heavily depends upon cement composition. Thus, crack surface roughness is proposed as a method for quantitatively identifying crack morphology, and finally classifying fracture type.
| Original language | English |
|---|---|
| Pages (from-to) | 783-795 |
| Number of pages | 13 |
| Journal | Fatigue and Fracture of Engineering Materials and Structures |
| Volume | 30 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - Aug 2007 |
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Keywords
- Acrylic surgical bone cement
- Crack growth path
- Crack growth rate
- Fatigue crack propagation
- Fracture surface roughness
- Polymethylmethacrylate (PMMA)
ASJC Scopus subject areas
- Mechanical Engineering
- Materials Science(all)
Cite this
Quantitative crack surface morphology of bone cements in relation to propagation rate. / Erani, Paolo; Cristofolini, Luca; Baleani, Massimilliano; Bignozzi, Maria Chiara; Cotifava, Marco; Ihaddadene, Nabila; Tomei, Federico; Viceconti, Marco.
In: Fatigue and Fracture of Engineering Materials and Structures, Vol. 30, No. 9, 08.2007, p. 783-795.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Quantitative crack surface morphology of bone cements in relation to propagation rate
AU - Erani, Paolo
AU - Cristofolini, Luca
AU - Baleani, Massimilliano
AU - Bignozzi, Maria Chiara
AU - Cotifava, Marco
AU - Ihaddadene, Nabila
AU - Tomei, Federico
AU - Viceconti, Marco
PY - 2007/8
Y1 - 2007/8
N2 - Morphology of the crack surface of surgical bone cements has seldom been studied in the past despite the clinical relevance of cement failure. Previous studies on a specific cement type suggest that crack morphology depends on crack propagation rate. The objectives of this work were: (i) to develop a quantitative indicator for describing crack morphology; and (ii) to assess if dependency on crack-propagation rate is affected by cement formulation. Known crack surfaces were obtained from specimens under controlled loading conditions. Crack surface roughness was measured for different crack-propagation rates, and compared against the amount of cleaved pre-cured beads (measured with a semi-automated procedure based on micrographs). Such indicators were extremely robust, operator-independent, highly correlated, and sensitive to the type of fracture. Moreover, it was found that crack surface morphology heavily depends upon cement composition. Thus, crack surface roughness is proposed as a method for quantitatively identifying crack morphology, and finally classifying fracture type.
AB - Morphology of the crack surface of surgical bone cements has seldom been studied in the past despite the clinical relevance of cement failure. Previous studies on a specific cement type suggest that crack morphology depends on crack propagation rate. The objectives of this work were: (i) to develop a quantitative indicator for describing crack morphology; and (ii) to assess if dependency on crack-propagation rate is affected by cement formulation. Known crack surfaces were obtained from specimens under controlled loading conditions. Crack surface roughness was measured for different crack-propagation rates, and compared against the amount of cleaved pre-cured beads (measured with a semi-automated procedure based on micrographs). Such indicators were extremely robust, operator-independent, highly correlated, and sensitive to the type of fracture. Moreover, it was found that crack surface morphology heavily depends upon cement composition. Thus, crack surface roughness is proposed as a method for quantitatively identifying crack morphology, and finally classifying fracture type.
KW - Acrylic surgical bone cement
KW - Crack growth path
KW - Crack growth rate
KW - Fatigue crack propagation
KW - Fracture surface roughness
KW - Polymethylmethacrylate (PMMA)
UR - http://www.scopus.com/inward/record.url?scp=34548182367&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34548182367&partnerID=8YFLogxK
U2 - 10.1111/j.1460-2695.2007.01152.x
DO - 10.1111/j.1460-2695.2007.01152.x
M3 - Article
AN - SCOPUS:34548182367
VL - 30
SP - 783
EP - 795
JO - Fatigue and Fracture of Engineering Materials and Structures
JF - Fatigue and Fracture of Engineering Materials and Structures
SN - 8756-758X
IS - 9
ER -