نتایج جستجو برای: linear elastic fracture mechanics

تعداد نتایج: 760398  

Journal: :Computer Methods in Applied Mechanics and Engineering 2022

The Generalized/eXtended Finite Element Method (G/XFEM) has been established as an approach to provide optimally convergent solutions for classes of problems that are challenging the standard version (FEM). For with non-smooth solutions, those within Linear Elastic Fracture Mechanics (LEFM) context, FEM convergence rates often not optimal and bounded by strength singularity in analytical soluti...

Journal: :Metals 2021

The fracture mechanical behaviour of thin-walled structures with cracks is highly significant for structural strength design, safety and reliability analysis, defect evaluation. In this study, the effects various factors on parameters, crack initiation angles plastic zones cylindrical shells are investigated. First, based J-integral displacement extrapolation methods, stress intensity circumfer...

2010
Luís Miguel Pereira Durão João Manuel R. S. Tavares Victor Hugo C. de Albuquerque António T. Marques António G. Magalhães A. Aguiar Vieira

Fibre reinforced plastics are increasing their importance as one of the most interesting groups of material on account of their low weight, high strength and stiffness. To obtain good quality holes, it is important to identify the type of material, ply stacking sequence and fibre orientation. In this paper, the drilling of quasi-isotropic hybrid carbon+glass/epoxy plates is analyzed. Two commer...

2007
PETER D. HILTON JOHN W. HUTCHINSON

An elastic-plastic analysis is performed for two problems relevant to fracture mechanics: a semi­ infinite body with an edge crack in a far out-of-plane shearing field and an infinite plate under plane stress conditions containing a finite line crack in a remote tensile field. Amplitudes of the dominant singularity in the plastic region at the crack tip, the plastic stress and strain intensity ...

2016
G. Vukelic

Flaws in material, appearing because of imperfections, manufacturing faults or severe service conditions, can easily threaten the structural integrity of engineering components. This is particularly dangerous when concerning equipment whose purpose is to protect larger systems, e.g. pressure safety valves (PSV) that protect pressure vessels and equipment of overpressure. Catastrophic consequenc...

Journal: :Vietnam Journal of Mechanics 2009

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