Short-rod elastic-plastic fracture toughness test using miniature specimens

1989 ◽  
Vol 24 (7) ◽  
pp. 2391-2400 ◽  
Author(s):  
C. T. Wang ◽  
R. M. Pilliar
Keyword(s):  
Fracture Toughness ◽  
Fracture Toughness Test ◽  
Elastic Plastic ◽  
Toughness Test ◽  
Miniature Specimens

Mini Short-Rod Fracture Toughness Testing of Bone Cements Exhibitng Elastic-Plastic Behaviour

1987 ◽  
Vol 110 ◽  
Author(s):  
C. T. Wang ◽  
R. M. Pilliar
Keyword(s):  
Fracture Toughness ◽  
Bone Cement ◽  
Correction Factor ◽  
Total Joint Replacement ◽  
Minimum Size ◽  
Fracture Toughness Test ◽  
Elastic Plastic ◽  
Toughness Test ◽  
Significant Difference ◽  
Rod Fracture

AbstractFracture of bone cement is considered to be a major factor contributing to total joint replacement failures because of implant loosening. While plane-strain fracture toughness (Klc) provides a parameter for assessing fracture resistance, the standard methods for testing (ASTM E399) require (1) the use of specimens greater than a certain minimum size (for bone cement this minimum size is greater than that found in clinical applications) and (2) fatigue precracking of specimens prior to testing. The short-rod fracture toughness test proposed by Barker offers a method of testing not requiring fatigue precracking and furthermore, it appears that a valid fracture toughness value can be determined using a modified miniature test specimen that we have proposed. Our mini short-rod specimen size approaches the actual dimensions of bone cement as used clinically. In this study mini short-rod fracture toughness test specimens were used to assess fracture toughness for two commercial brands of bone cement (Simplex-P and Zimmer LVC). An elastic-plastic fracture mechanics (EPFM) analysis was used to obtain experimental results with a plasticity correction factor being introduced. The cements were assessed as a function of method of preparation (hand mixed versus centrifuged) and aging conditions (3 days in air versus 7 days in distilled water at 37° C). The results indicated that (1) true fracture toughness values could be obtained only using an EPFM analysis for these specimens, (2) centrifugation did not significantly affect fracture toughness and (3) a significant difference in the plasticity correction factor due to water aging at 37° C was indicated for only the hand-mixed Zimmer LVC cement. There was, however, no significant change in fracture toughness due to water aging.

Experimental Investigation on Relative Crack Length For Fracture Toughness of Concrete

2010 ◽  
Vol 146-147 ◽  
pp. 1524-1528 ◽  
Author(s):  
Xue Zhi Wang ◽  
Zong Chao Xu ◽  
Zhong Bi ◽  
Hao Wang
Keyword(s):  
Fracture Toughness ◽  
Experimental Investigation ◽  
Crack Length ◽  
Fracture Toughness Test ◽  
Test Results ◽  
Toughness Test ◽  
Wedge Splitting Test ◽  
Splitting Test ◽  
Wedge Splitting

The wedge splitting test specimens with three series of different relative crack length were used to study the influences of relative crack length on the fracture toughness of common concrete. The suitable formulation for fracture toughness of concrete with different relative crack length was gotten on comparing between fracture toughness test results and computation results of the model developed from Hu formula.

scholarly journals IMPACT FRACTURE TOUGHNESS TEST OF CERAMIC REINFORCED METALS

1991 ◽  
Vol 01 (C3) ◽  
pp. C3-769-C3-774 ◽  
Author(s):  
S. TAKAHASHI ◽  
K. KISHIMOTO ◽  
S. AOKI
Keyword(s):  
Fracture Toughness ◽  
Impact Fracture ◽  
Fracture Toughness Test ◽  
Toughness Test

A Notched Ring Fracture Toughness Test for Ceramics

1978 ◽  
pp. 473-482 ◽  
Author(s):  
D. J. Rowcliffe ◽  
R. L. Jones ◽  
J. K. Gran
Keyword(s):  
Fracture Toughness ◽  
Fracture Toughness Test ◽  
Ring Fracture ◽  
Toughness Test
Sign in / Sign up

Export Citation Format

Share Document