Search results for "Cut-out"
showing 4 items of 4 documents
Residual Stresses Induced by Cold Expansion of Adjacent and Cut-Out Holes
2012
Fatigue life of fastener holes can be enhanced via a cold-expansion process to introduce a compressive residual stress field around the hole edge and to reduce crack growth propagation. Considering that aerospace components contain multiple rows of holes, the present investigation focuses on the evaluation of the three-dimensional residual stress distribution in adjacent cold-expanded (CE) holes. The redistribution of residual stresses caused by a cut introduced between two adjacent holes was also investigated. Finite element (FE) analysis and experimental technique were used to assess the residual stress distribution in a 6082-T6 aluminum plate with two adjacent holes expanded sequentially…
High-fidelity analysis of multilayered shells with cut-outs via the discontinuous Galerkin method
2021
Abstract A novel numerical method for the analysis of multilayered shells with cut-outs is presented. In the proposed approach, the shell geometry is represented via either analytical functions or NURBS parametrizations , while generally-shaped cut-outs are defined implicitly within the shell modelling domain via a level set function . The multilayered shell problem is addressed via the Equivalent-Single-Layer approach whereby high-order polynomial functions are employed to approximate the covariant components of the displacement field throughout the shell thickness. The shell governing equations are then derived from the Principle of Virtual Displacements of three-dimensional elasticity an…
L’AZZURRO DEL CIELO: CARLO SCARPA A PALERMO (THE BLUE OF THE SKY: CARLO SCARPA IN PALERMO)
2017
Abstract - Cercare l’azzurro del cielo è un monito di Carlo Scarpa per comprendere l’appartenenza a un luogo. In particolare nel riadattare Palazzo Abatellis ha proposto soluzioni e ipotesi di riuso per la ridefinizione di un principio organizzativo su cui ha re-imperniato lo spazio esistente e da dove emergono regole che nel farsi danno significato all’intero ambiente fisico. Seek the blue of the sky - this is an exhortation from Carlo Scarpa to comprehend being part of a place. In particular, in the re-adaptation of Palazzo Abatellis, he proposed solutions and hypotheses for its re–use in order to redefine an organizational principle upon which to base the existing space and from which ru…
Cement augmentation for trochanteric fracture in elderly: A systematic review()
2021
Abstract Background Cement augmentation of internal fixation of hip fracture has reported to improve fracture stability in osteoporotic hip fractures, reducing the risk of cut-out of the sliding screw through the femoral head. The purpose of present study was to perform a systematic literature review on the effects of augmentation technique in patients with osteoporotic hip fractures. Material and methods A comprehensive literature search was systematically performed to evaluate all papers published in English language included in the literature between January 2010 and July 2020, according to the PRISMA 2009 guidelines. In vivo and in vitro studies, case reports, review articles, cadaveric…