Mechanical Behavior of Aluminum Alloys During Small Punch Test

2011 ◽  
Vol 39 (5) ◽  
pp. 103323
Author(s):  
M. R. Mitchell ◽  
R. E. Link ◽  
Matthew Sanders ◽  
Frank Di Bella ◽  
Hong Liang
Keyword(s):  
Aluminum Alloys ◽  
Mechanical Behavior ◽  
Small Punch Test ◽  
Small Punch ◽  
Punch Test

Mechanical Degradation of Retrieved UHMWPE Tibial Components Characterized by the Small Punch Test

1999 ◽  
Author(s):  
S. M. Kurtz ◽  
C. W. Jewett ◽  
A. Kalinowski ◽  
C. M. Rimnac ◽  
A. A. Edidin
Keyword(s):  
Mechanical Behavior ◽  
Total Joint Replacement ◽  
Mechanical Degradation ◽  
Small Punch Test ◽  
Small Punch ◽  
Punch Test ◽  
Significant Relationships ◽  
Study Support

Abstract Miniature specimen testing techniques are necessary to characterize the mechanical behavior of UHMWPE components for total joint replacement after sterilization, shelf aging, and implantation. The small punch test has been shown to reproducibly characterize virgin and in vitro aged UHMWPE. The first goal of this study was to demonstrate the feasibility of applying this technology to UHMWPE components after retrieval from the human body. Six short-term retrievals of the same tibial design were characterized with the intent of comparing the mechanical behavior of conventional and enhanced UHMWPE having an extended chain crystalline morphology. Statistically significant relationships were observed between damage scores and the small punch test metrics of initial load, ultimate load, and work to failure. The results of this study support the hypothesis that the in vivo performance of tibial bearings is related to the large deformation mechanical behavior of UHMWPE.

The Role of Elastic and Large-Strain Mechanical Behavior on the Wear of UHMWPE, HDPE, PTFE, and Polyacetal Evaluated by a Hip Simulator

1999 ◽  
Author(s):  
A. A. Edidin ◽  
V. L. Giddings ◽  
S. M. Kurtz
Keyword(s):  
Elastic Modulus ◽  
Wear Rate ◽  
Mechanical Behavior ◽  
Large Deformation ◽  
Contact Stress ◽  
Elastic Behavior ◽  
Small Punch Test ◽  
Small Punch ◽  
Punch Test ◽  
Hip Simulator

Abstract The elastic and large deformation mechanical behavior of four materials with known clinical performance was examined and correlated with the wear behavior in a hip simulator. Acetabular liners of a commercially-available design were machined from UHMWPE, HDPE, PTFE, and polyacetal and wear tested in a multidirectional hip joint simulator. Elastic and large-deformation mechanical behavior was directly measured from the wear-tested liners using the small punch test. The inverse finite element method was used to compute elastic modulus from the measured small punch test initial stiffness, and the contact stress for the liners was calculated using the theory of elasticity solution. Positive, statistically-significant correlations were observed between the hip simulator wear rate and the initial peak load, ultimate load, and work to failure from the small punch test. Negative correlations were observed between the wear rate and the elastic modulus and contact stress. This results of this study support the hypothesis that the large deformation mechanical behavior of a polymer plays a greater role in the wear mechanisms prevalent in total hip replacements than the elastic behavior.

Prüfung duktiler Werkstoffe mit dem Small-Punch-Test

2005 ◽  
Vol 47 (1-2) ◽  
pp. 45-54 ◽  
Author(s):  
Meinhard Kuna ◽  
Martin Abendroth
Keyword(s):  
Small Punch Test ◽  
Small Punch ◽  
Punch Test

Evaluation of hydrogen related degradation of API X42 pipeline under hydrogen/natural gas mixture conditions using small punch test

2021 ◽  
Vol 113 ◽  
pp. 102961
Author(s):  
Thanh Tuan Nguyen ◽  
Jong Seo Park ◽  
Seung Hoon Nahm ◽  
Un Bong Beak
Keyword(s):  
Natural Gas ◽  
Gas Mixture ◽  
Small Punch Test ◽  
Small Punch ◽  
Punch Test

Predicting ductile fracture of cracked pipes using small punch test data

2021 ◽  
Vol 87 ◽  
pp. 104211
Author(s):  
Jong-Min Lee ◽  
Jin-Ha Hwang ◽  
Yun-Jae Kim ◽  
Jin-Weon Kim
Keyword(s):  
Ductile Fracture ◽  
Test Data ◽  
Small Punch Test ◽  
Small Punch ◽  
Punch Test
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