BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Vladislav Mantič (University of Sevilla) DTSTART:20251006T134000Z DTEND:20251006T151000Z DTSTAMP:20260405T175149Z UID:NSCM/182 DESCRIPTION:Title: A symptotic Solutions at the Tip of Interface Cracks and Multi-Material Corn ers with Frictional Contact in Linear Elastic Anisotropic Solids\nby V ladislav Mantič (University of Sevilla) as part of Nečas Seminar on Cont inuum Mechanics\n\nLecture held in Room K3\, Faculty of Mathematics and P hysics\, Charles University\, Sokolovská 83 Prague 8..\n\nAbstract\nThis study focuses on point singularities in the solutions of linear elastic B VPs for anisotropic solids in 2.5D (generalised plane strain). The stresse s in these BVPs can be unbounded at singular points\, also known as corner s\, where discontinuities exist in the solid geometry\, material propertie s or boundary/interface conditions. The behaviour of elastic solutions at singular points is described by asymptotic expansions expressed as series of products of power-logarithmic terms in the radial coordinate and charac teristic angular functions. The exponents of these terms are known as sing ularity exponents\, while the coefficients of the series are referred to a s generalised stress intensity factors (GSIFs).\n\nThis work aims to devel op:\n\n1) a specific semi-analytic procedure to determine the terms of the se asymptotic series at the tip of interface cracks with frictional slidin g contact between the crack faces\; and\n\n2) a general semi-analytic proc edure to determine the terms of these asymptotic series at the tip of mult i-material corners with frictional sliding contact at the outer faces and/ or interfaces between the wedges\, considering the Coulomb friction law.\n \nThese procedures are novel in that they lead to nonlinear eigenproblems for both the singularity exponents and the angles of frictional shear stre sses in frictional contact zones. Both procedures are based on the Stroh f ormalism in complex variable for linear anisotropic elasticity.\n\nThe app lication of these procedures is demonstrated by some interesting examples. Finally\, SingSol\, an online app that implements the general semi-analyt ic procedure for singularity analysis of multimaterial corners\, is briefl y presented.\n LOCATION:https://researchseminars.org/talk/NSCM/182/ END:VEVENT END:VCALENDAR