Results 51 to 60 of about 173,051 (269)
The variational theory of fracture: diffuse cohesive energy and elastic-plastic rupture
, 2013 This communication anticipates some results of a work in progress [1], addressed to explore the efficiency of the diffuse cohesive energy model for describing the phenomena of fracture and yielding.
Lancioni, Giovanni +2 more
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Multiscale modelling of materials chemomechanics : brittle fracture of oxides and semiconductors [PDF]
, 2014 Fracture is one of the most challenging ‘multi-scale’ problems to model: since crack propagation is driven by the concentration of a long-range stress field at an atomically sharp crack tip, an accurate description of the chemical processes occurring in ...
De Vita, Alessandro +4 more
core +1 more source
Advanced Engineering Materials, EarlyView.A flexure‐based variable stiffness structure is developed by integrating phase‐change modulation and adhesive interfacial locking of gallium. The design enables a wide stiffness variability, transitioning from soft, flexible behavior to rigid, load‐supporting performance.
Sungjin Kim +2 more
wiley +1 more source
Fracture mechanics of volcanic eruptions [PDF]
, 2009 Seismology is a key tool in the forecasting of volcanic eruptions. The onset of an eruption is often preceded and accompanied by an increase in local seismic activity, driven by fracturing within the edifice.
Matthews, C., Matthews, C
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An adaptive finite element approximation of a generalized Amrosio-Tortorelli functional [PDF]
, 2012 The Francfort–Marigo model of brittle fracture is posed in terms of the minimization of a highly irregular energy functional. A successful method for discretizing the model is to work with an approximation of the energy.
Ortner, C. +11 more
core +1 more source
Advanced Engineering Materials, EarlyView.Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar +2 more
wiley +1 more source
Micromechanics of osteopontin-deficient bone [PDF]
Biofunctional MaterialsAgeing- or bone-related diseases, such as osteoporosis leads to perturbations in the collagenous framework and mineralization that translate to deteriorated fracture resistance at the whole-bone level.
Nouf Aldegaither +5 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora +4 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Trace additions of Sn and Sr combined with a two‐step aging treatment are shown to enhance the microstructure and performance of Al–Zr–Sc conductor alloys. Strength and electrical conductivity increase concurrently through accelerated precipitation of fine Al3(Sc, Zr) precipitates and improved dislocation resistance, offering a cost‐effective pathway ...
Quan Shao +3 more
wiley +1 more source
The energy consumption by dynamic shear fracture
, 2022 The behaviour of cracks loaded dynamically under shear by impact was investigated for two high strength steels using the shadow optical technique and thermocouples.
Klemm, W., Winkler, S., Reisacher, E.
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