Nonsteady crack and craze behavior in PMMA under cyclical loading: I. Experimental preliminaries

1998 ◽  
pp. 145-159
Author(s):  
Guillermo C. Pulos ◽  
Wolfgang G. Knauss
Keyword(s):  
Cyclical Loading

scholarly journals Evidence of tendon microtears due to cyclical loading in an in vivo tendinopathy model

2005 ◽  
Vol 23 (5) ◽  
pp. 1199-1205 ◽  
Author(s):  
Leena H. Nakama ◽  
Karen B. King ◽  
Sven Abrahamsson ◽  
David M. Rempel
Keyword(s):  
Cyclical Loading

Proud osteochondral autograft versus synthetic plugs — Contact pressures with cyclical loading in a bovine knee model

The Knee ◽  
2012 ◽  
Vol 19 (6) ◽  
pp. 812-817 ◽  
Author(s):  
Sameh Elguizaoui ◽  
David C. Flanigan ◽  
Joshua D. Harris ◽  
Erin Parsons ◽  
Alan S. Litsky ◽  
...  
Keyword(s):  
Osteochondral Autograft ◽  
Knee Model ◽  
Cyclical Loading ◽  
Contact Pressures

scholarly journals A New Minimally Invasive Technique for Repairing Achilles Tendon Rupture:A Biomechanical Study

2019 ◽  
Author(s):  
Peng zhao ◽  
Dawei Sun ◽  
Yaru Xiong ◽  
Ribo Zhuo
Keyword(s):  
Minimally Invasive ◽  
Achilles Tendon ◽  
Research Group ◽  
Tendon Rupture ◽  
Achilles Tendon Rupture ◽  
Biomechanical Study ◽  
New Technique ◽  
Invasive Technique ◽  
Invasive Treatment ◽  
Cyclical Loading

AbstractIntroductionThe incidence of Achilles tendon rupture shows a gradually increasing trend, which is mainly managed by minimally invasive treatment due to its advantages, such as low wound infection rate. At present, the firmness of the commonly applied minimally invasive suture method for Achilles tendon remains controversial. Our research group has developed a novel suture method for Achilles tendon, which has achieved favorable clinical outcomes. Therefore, this experiment aimed to explore the optimal approach to repair Achilles tendon rupture through comparing the biomechanical strength of the commonly used Achilles tendon suture methods currently.Materials and methods6 fresh frozen human cadaveric Achilles tendon specimens were sutured by three kinds of technique, and were tested through the cyclical loading after repair.ResultsResults of cyclical loading showed that, the repair using the new technique was stronger after 10 cycles, 1000 cycles, and rupture. Moreover, the new technique had displayed superior anti-deformation strength to that of the Ma-Griffith technique.ConclusionsOur experimental results demonstrate that, the new technique proposed by our research group can attain comparable biomechanical properties to those of the Krachow technique. However, the sample size in this study is small, and further clinical trials are warranted.

Cyclical Loading to Evaluate the Bone Implant Interface

2021 ◽  
pp. 377-400
Author(s):  
Isaac R. Swink ◽  
Stephen Jaffee ◽  
Daniel Diehl ◽  
Chen Xu ◽  
Jake Carbone ◽  
...  
Keyword(s):  
Bone Implant ◽  
Cyclical Loading

Engineering Functional Collagen Scaffolds: Cyclical Loading Increases Material Strength and Fibril Aggregation

2007 ◽  
Vol 17 (14) ◽  
pp. 2426-2431 ◽  
Author(s):  
U. Cheema ◽  
C.-B. Chuo ◽  
P. Sarathchandra ◽  
S. N. Nazhat ◽  
R. A. Brown
Keyword(s):  
Material Strength ◽  
Collagen Scaffolds ◽  
Cyclical Loading ◽  
Fibril Aggregation

scholarly journals Reduced stiffness as structure acceptance criteria on cyclical loading in castellated beams

2020 ◽  
Vol 419 ◽  
pp. 012059
Author(s):  
N H Aswad ◽  
Tachrir ◽  
S Syarif ◽  
Nasrul ◽  
H Parung ◽  
...  
Keyword(s):  
Acceptance Criteria ◽  
Cyclical Loading

Evaluation of a metal acrylic repair product as a clamp for an external fixator

2004 ◽  
Vol 17 (02) ◽  
pp. 97-103 ◽  
Author(s):  
N. R. Gibson ◽  
R. A. Read ◽  
R. Day ◽  
I. D. Robertson ◽  
K. L. Staudte
Keyword(s):  
Mechanical Testing ◽  
Significant Variation ◽  
Significant Loss ◽  
External Fixators ◽  
Frame Design ◽  
Pullout Tests ◽  
Cyclical Loading ◽  
Cantilever Bending ◽  
Equivalent Strength ◽  
Loss Of Strength

SummaryMechanical testing was performed to evaluate an acrylic steel repair paste when used in the construction of external fixators. Individual pin-bar-acrylic constructs were compared with those made from Kirschner-Ehmer (KE) clamps or polymethylmethacrylate. The constructs were subjected to cantilever bending forces, pin-pullout tests and cantilever bending after undergoing cyclical fatigue. Forty mm segments of acrylic were significantly stronger than medium ESF clamps. Twenty-five mm segments of acrylic were of equivalent strength to clamps. Ten mm segments failed under physiological loads expected from dogs greater than 20 kg and were less likely to provide adequate pin coverage to protect against pin pull-put. The placement of a wire loop to secure the pin-bar intersects made application of the acrylic easier but did not alter stiffness. There was not any significant variation between different operators in the strength of their constructs nor tolerance of their constructs to pin pullout. Cyclical loading forces were applied to acrylic-pinbar units without significant loss of strength, and acrylic and polymethylmethacrylate units did not show any difference in stiffness after being subjected to cyclical fatigue. The acrylic steel repair paste is a handkneadable, fast setting, inexpensive and readily available acrylic for use in the construction of external fixators. It allows more flexibility in frame design than a clamp and on the basis of mechanical testing offers a very stiff and secure substitute for KE clamps or polymethylmethacrylate.

Biomechanical Cyclical Loading on Cadaveric Cervical Spines in a Corpectomy Model

2011 ◽  
Vol 8 (7) ◽  
pp. 103408
Author(s):  
Boyle C. Cheng ◽  
Daniel J. Cook ◽  
Mathieu Cuchanski ◽  
Stephen M. Pirris ◽  
William C. Welch ◽  
...  
Keyword(s):  
Cyclical Loading
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