Results 11 to 20 of about 387,385 (290)

The post-yield fracture of a ductile polymer film: Notch quality, essential work of fracture, crack tip opening displacement, and J-integral [PDF]

, 2017
Double edge notched tension (DENT) specimens of a polyethylene terephthalate (PET) film were tested in an universal testing machine, measuring the displacements and the ligament lengths with a digital image correlation (DIC) system.
Arencón Osuna, David, León Albiter, Noel, Martínez Benasat, Antonio, Sánchez Soto, Miguel   +3 more
core   +2 more sources

An extended J-integral for evaluating fluid-driven cracks in hydraulic fracturing

Journal of Rock Mechanics and Geotechnical Engineering, 2018
J-integral has served as a powerful tool in characterizing crack tip status. The main feature, i.e. path-independence, makes it one of the foremost fracture parameters.
Huifang Song, Sheik S. Rahman
doaj   +1 more source

Numerical simulation of peel test for ductile thin film along ceramic substrate: Elasto-plastic analysis

Journal of Mechanical Engineering and Sciences, 2021
Due to extensive applications of the thin film/substrate systems in engineering, the research on strength, ductility and reliability of these systems have attracted great deal of interest in recent years.
Abdelaziz Adjeloua, N. Boualem, H. Meddah, A. Belarbi   +3 more
doaj   +1 more source

A new displacement-based approach to calculate stress intensity factors with the boundary element method [PDF]

, 2015
The analysis of cracked brittle mechanical components considering linear elastic fracture mechanics is usually reduced to the evaluation of stress intensity factors (SIFs).
Aliabadi M.H., Anderson T.L., Balderrama R., Becker A.A., Bezerra L.M., Cruse T. A., Cruse T. A., Cruse T. A., Cruse T.A., Dell´Erba D.N., Dirgantara T., Fu P., Gross D., Ju S. H., Mi Y., Ortiz J.E., Portela A., Purbolaksono J., Rice J. R., Rigby R.H., Shahani A. R., Singh R., Tada H., Walters M.C., Wen P. H.   +24 more
core   +2 more sources

On relation between J-integral and heat energy dissipation at the crack tip in stainless steel specimens

Fracture and Structural Integrity, 2019
In this paper, an experimental procedure to evaluate the elastic-plastic J-integral at the tip of a fatigue crack is presented. According to this new approach, the elastic component of the J-integral is derived from Thermoelastic Stress Analysis, while ...
G. Meneghetti, M. Ricotta, G. Pitarresi
doaj   +3 more sources

Applying fracture mechanics to cracked components subjected to unloading [PDF]

, 2016
The J-integral is widely used as a fracture parameter for elastic-plastic materials. The J-integral describes the intensity of the stress field close to the crack tip in a power-law hardening material under a set of well-known restrictions.
Mostafavi, Mahmoud, Oliver, Sam, Pavier, Martyn   +2 more
core   +3 more sources

Modified stress intensity factor as a crack growth parameter applicable under large scale yielding conditions

Mechanical Engineering Journal, 2014
High-temperature water stress corrosion cracking has high tensile stress sensitivity, and its growth rate has been evaluated using the stress intensity factor, which is a linear fracture mechanics parameter.
Tetsuo YASUOKA, Yoshihiro MIZUTANI, Akira TODOROKI   +2 more
doaj   +1 more source

Homogenization and Path Independence of the J-Integral in Heterogeneous Materials [PDF]

, 2016
The J-integral that determines the driving force on a crack tip is a central concept of fracture mechanics. It is particularly useful since it is path independent in homogeneous materials. However, most materials are heterogeneous at a microscopic scale,
Bhattacharya, Kaushik, Hsueh, Chun-Jen
core   +1 more source

A new formulation of J-integral range ΔJ using three-dimensional equivalent domain integral for finite deformation elastic-plastic problem

Nihon Kikai Gakkai ronbunshu, 2018
In this paper, a new formulation for computing ΔJ using the three-dimensional equivalent domain integral method for finite deformation elastic-plastic problem is presented.
Koichiro ARAI, Hiroshi OKADA, Yasunori YUSA   +2 more
doaj   +1 more source

Study on Elastic-plastic fracture mechanics assessment method of a pipe having multiple circumferential surface cracks for the Rules on Fitness-for-Service of JSME

Nihon Kikai Gakkai ronbunshu, 2019
This paper describes elastic-plastic fracture mechanics assessment methods of a pipe having multiple circumferential cracks. Ductile fracture strength of a multiple cracked pipe was evaluated using J-integral based on a reference stress method.
Hideo MACHIDA, Toshiki OKAMOTO, Shinji YOSHIDA   +2 more
doaj   +1 more source