Recent progress in controlled nano/micro cracking as an alternative nano-patterning method for functional applications

J Jung, KK Kim, YD Suh, S Hong, J Yeo, SH Ko - Nanoscale Horizons, 2020 - pubs.rsc.org
Generally, cracking occurs for many reasons connected to uncertainties and to the non-
uniformity resulting from intrinsic deficiencies in materials or the non-linearity of applied …

Challenge toward nanometer scale fracture mechanics

T Kitamura, T Sumigawa, T Shimada - Engineering Fracture Mechanics, 2018 - Elsevier
For the past several decades, fracture mechanics concept and theories have been
successfully developed and advanced in the engineering field as here we celebrate 50th …

Evaluation of the strain energy density control volume for a nanoscale singular stress field

P Gallo, T Sumigawa, T Kitamura… - Fatigue & Fracture of …, 2016 - Wiley Online Library
Fracture mechanics at micro‐and nano‐scale has become a very attractive topic in the last
years. However, the results are still few, mostly because of the lack of effective analytical …

Failure analysis on premature fracture of boric acid recycle pump shaft in 1000 MW nuclear power plant

TW Ni, Q Ding, ZG Yang, HL Zheng, X Lou - Engineering Failure Analysis, 2018 - Elsevier
Boric acid recycling pump is used to maintain the circulation of boric acid solution for the
need of nuclear safety protection. In a boric acid recycling pump, the pump shaft is an …

Nano-notch modulated fracture behaviors in nanoscale thin films

Y Yan, G Xu, F Xuan - International Journal of Solids and Structures, 2023 - Elsevier
This study presents an efficient methodology to assess fracture behavior in nanoscale
multilayers. After fabricating a nano-cantilever specimen of Cu/Si/SiN, a notch with the tip …

Frontiers of fracture and fatigue: Some recent applications of the local strain energy density

F Berto, SMJ Razavi, J Torgersen - Frattura ed Integrità Strutturale, 2018 - fracturae.com
The phenomenon of brittle fracture occurs too often in various branches of engineering
being the reason of unexpected termination of anticipated service lives of an engineering …

Fracture criterion of mixed-mode crack propagation along the interface in nanoscale components

Y Yan, K Huang, T Sumigawa, T Kitamura - Engineering Fracture …, 2018 - Elsevier
To investigate the fracture behavior of mixed-mode interfacial cracking in nanoscale
components, three different types of nano-specimens, including the nano-cantilever …

A Robust in situ TEM Experiment for Characterizing the Fracture Toughness of the Interface in Nanoscale Multilayers

Y Yan, T Sumigawa, T Kitamura - Experimental Mechanics, 2018 - Springer
A novel in situ transmission electron microscopy (TEM) bending method using a nano-
cantilever specimen that includes a naturally sharp pre-crack at the interface between a 500 …

Mechanics of fracture in nanometer-scale components

T Sumigawa, H Fang, E Kawai… - Mechanical Engineering …, 2014 - jstage.jst.go.jp
Nanometer-scale components (nano-components) often exhibit characteristic mechanical
behavior different from those of bulk counterparts. In this paper, we review a series of …

Novel experimental contrivance on competitive cracking in multilayered nano-structures

T Kitamura, T Sumigawa, K Huang, Y Yan… - Theoretical and Applied …, 2019 - Elsevier
With the advancement in the miniaturization and integration of micro/nano-devices, the
multilayered nano-structures have become ever more important for the constitutive nano …