Structural to interfacial fracture transition in epoxy coated hydrating cement

2021 ◽  
Vol 310 ◽  
pp. 125128
Author(s):  
Pratik Gujar ◽  
Hirshikesh Hirshikesh ◽  
Ratna Kumar Annabattula ◽  
Pijush Ghosh
Keyword(s):  
Interfacial Fracture ◽  
Fracture Transition

scholarly journals Evaluation of the Interfacial Fracture Toughness of Anodic Bonds

2007 ◽  
Vol 73 (735) ◽  
pp. 1266-1272 ◽  
Author(s):  
Yoshiaki NOMURA ◽  
Masaki NAGAI ◽  
Toru IKEDA ◽  
Noriyuki MIYAZAKI
Keyword(s):  
Fracture Toughness ◽  
Interfacial Fracture ◽  
Interfacial Fracture Toughness

scholarly journals Interfacial fracture of 3D-printed bioresorbable polymers

2018 ◽  
Vol 13 ◽  
pp. 625-630 ◽  
Author(s):  
Andrew Gleadall ◽  
Wingho Poon ◽  
James Allum ◽  
Alper Ekinci ◽  
Xiaoxiao Han ◽  
...  
Keyword(s):  
Interfacial Fracture ◽  
Bioresorbable Polymers ◽  
3D Printed

Adhesion and interfacial fracture in drug-eluting stents

2010 ◽  
Vol 25 (4) ◽  
pp. 641-647 ◽  
Author(s):  
Juan Meng ◽  
Argjenta Orana ◽  
Ting Tan ◽  
Kurt Wolf ◽  
Nima Rahbar ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Interfacial Fracture ◽  
Drug Eluting Stent ◽  
Mode Mixity ◽  
Parylene C ◽  
Energy Release Rates ◽  
Drug Eluting ◽  
Model Drug ◽  
Experimental And Theoretical Studies ◽  
Initial Cracks

This paper presents experimental and theoretical studies of the adhesion between the drug-eluting layer and a Parylene C primer layer in coatings present on a model drug-eluting stent. To quantify adhesion, Brazil nut sandwich specimens were prepared mimicking the layers of this coating. These samples were stressed to fracture, and the resulting initial cracks at the Parylene C/drug interface were used to measure the dependence of interfacial fracture energy of mode mixity. The mating fracture surfaces were then analyzed using scanning electron microscopy (SEM) and energy dispersive x-ray spectroscopy (EDX). The interfacial energy release rates were obtained over a wide variety of mode mixities. Adhesion and fracture mechanics models were then used to estimate the mode mixity dependency of interfacial fracture toughness. Fracture toughness was found to be larger under higher mode mixity than that under lower mixity and the analytical model showed close agreement with experimental results.

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