Results 81 to 90 of about 3,117 (209)
Study of short cracks under biaxial fatigue
In this paper a methodology for evaluating crack initiation under biaxial conditions is presented. The methodology consists of evaluating the crack length automatically with digital processing of highmagnification images of the crack. The methodology was
P. Lopez-Crespo +4 more
doaj
Abstract Purpose To evaluate the mechanical properties of lithium disilicates, and to assess the predictive capability of in silico models for biaxial flexural strength (BFS). Materials and Methods Specimens of four heat‐pressed lithium disilicates (IPS e.max Press, Rosetta SP, LiSi Press, Vintage Prime Press) were obtained.
Larissa M. M. Alves +12 more
wiley +1 more source
High magnification crack-tip field characterisation under biaxial conditions
This work presents a novel methodology for characterising fatigue cracks under biaxial conditions. The methodology uses high magnification Digital Image Correlation (DIC) technique for measuring displacement and strain crack-tip fields. By applying micro-
B. Moreno, P. Lopez-Crespo, J. Zapatero
doaj
Batteries From Reused, Recycled, and Surplus Materials
Batteries can become more circular by combining reuse, direct recycling, metallurgical recovery, and material sourcing from industrial surplus streams. This Review highlights how recycled and waste‐derived metals, carbons, polymers, electrolytes, and active materials can be reintegrated into current and emerging batteries, while emphasizing design ...
Jing Yu +16 more
wiley +1 more source
Biaxial flexural fatigue behavior of strain-hardening UHPFRC thin slab elements
The biaxial flexural fatigue behavior of thin slab elements made of strain-hardening Ultra High Performance Fiber Reinforced Cementitious Composite (UHPFRC) is investigated experimentally by means of the ring-on-ring test method.
Brühwiler, Eugen, Shen, Xiujiang
core +1 more source
ABSTRACT Characterization of the crack tip, such as the stress intensity factor (SIF), is a vital step for the assessment of fatigue crack growth and prediction of potential failure in engineering structures. This study investigates the use of thermoelastic stress analysis (TSA) for SIF evaluation, including a methodology for non‐adiabatic stress field
John Codrington +3 more
wiley +1 more source
Tension - torsion fatigue tests on the proton exchange membrane Nafion 115 (Perfluorosulfonic acid)
Biaxial tension-torsion fatigue tests are carried out on the membrane material Nafion 115 (perfluorosulfonic acid, PFSA). This polymeric material is used in fuel cells as proton exchange membrane, undergoing frequently mechanical loading of tension and ...
Gonzalo Mariano DOMINGUEZ ALMARAZ +2 more
doaj +3 more sources
Low-Cycle Fatigue Machine for Biaxial Cyclic Loading Tests [PDF]
A fatigue machine was designed for low-cycle fatigue tests under biaxial cyclic loading. This fatigue machine equipped with two electro hydraulic servo valves, with which biaxial stresses or strains could be imposed cyclically on thin-walled tubular ...
小幡谷, 洋一 +3 more
core +1 more source
Fatigue tests have been carried out under biaxial modality: tension and torsion, on the membrane material Nafion 115 (perfluorosulfonic acid, PFSA).
L.M. Torres Duarte +2 more
doaj +1 more source
An effective method to investigate short crack growth behaviour by reverse bending testing
A reverse bending rig has the advantage of relatively cheap construction compared with servo-controlled machines, and its robustness and reliability make it ideally suited to long-term testing programmes.
Reed, P. A. S. +3 more
core

