Exploració per tema "Materials--Fatigue"
Ara es mostren els items 1-20 de 31
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A damage-based uniaxial fatigue life prediction method for metallic materials
(Elsevier, 2023-06-06)
Article
Accés obertDetermining the fatigue behaviour of metallic materials using standardised testing methods is costly and time-consuming. Therefore, several methods have been proposed to shorten the testing time and improve the fatigue ... -
A hybridizable discontinuous Galerkin phase-field model for brittle fracture with adaptive refinement
(John Wiley & sons, 2020-03-30)
Article
Accés obertIn this paper, we propose an adaptive refinement strategy for phase-field models of brittle fracture, which is based on a novel hybridizable discontinuous Galerkin (HDG) formulation of the problem. The adaptive procedure ... -
A phenomenological cohesive model of ferroelectric fatigue
(2006-02)
Article
Accés obertWe develop a phenomenological model of electro-mechanical ferroelectric fatigue based on a ferroelectric cohesive law that couples mechanical displacement and electric-potential discontinuity to mechanical tractions and ... -
A simplified methodology to evaluate the design specifications of hydraulic components
(Multidisciplinary Digital Publishing Institute, 2018-09-11)
Article
Accés obertThe fatigue of a hydraulic component inherently varies due to various factors that can be divided into two categories: structural and load spectrum variability. The effects of both variabilities must be considered when ... -
An energy-equivalent d+/d- damage model with enhanced microcrack closure-reopening capabilities for cohesive-frictional materials
(2017-04)
Article
Accés obertIn this paper, an energy-equivalent orthotropic d+/d- damage model for cohesive-frictional materials is formulated. Two essential mechanical features are addressed, the damage-induced anisotropy and the microcrack ... -
Contact fatigue of WC-6%wtCo cemented carbides: Influence of corrosion-induced changes on emergence and evolution of damage
(2022-02)
Article
Accés obertThe effect of corrosion-induced changes on the contact fatigue response and associated damage in a medium-grained WC-6%wtCo hardmetal grade is investigated. Cyclic contact loading tests are conducted by means of Hertzian ... -
Dynamics of crack propagation with adaptive refinement based on unfitted meshes
(Universitat Politècnica de Catalunya, 2020-07)
Projecte Final de Màster Oficial
Accés obertFracture mechanics is a field of mechanics concerned with the study of the propagation of cracks originated in different materials. This field has achieved great popularity in recent years, due to the massive interest of ... -
Effect of sandblasting on low and high-cycle fatigue behaviour after mechanical cutting of a twinning-induced plasticity steel
(2018)
Text en actes de congrés
Accés obertIn the last years, car bodies are increasingly made with new advanced high-strength steels, for both lightweighting and safety purposes. Among these new steels, high-manganese or TWIP steels exhibit a promising combination ... -
Estudi de propietats mecàniques de peces fabricades per impressió 3D
(Universitat Politècnica de Catalunya, 2018-07-03)
Treball Final de Grau
Accés obertL’objectiu d’aquest projecte és l’estudi de la influència dels paràmetres de fabricació sobre l’estudi mecànic d’esforços a fatiga per a mostres impreses a partir de la tècnica FDM (Fused Deposition Material), també ... -
Estudis dels concentradors de tensió aplicats a fatiga mecànica per simulació
(Universitat Politècnica de Catalunya, 2018-09-17)
Projecte Final de Màster Oficial
Accés restringit per acord de confidencialitat -
Evaluation of the influence of a planned interference fit on the expected fatigue life of a conjugate cam mechanism- A case study
(2013-08-01)
Article
Accés restringit per política de l'editorialDue to dynamic effects, clearances, manufacturing and assembly errors in form-closed cam mechanisms, the follower jump can also occur. For conjugate cam mechanisms a technique to avoid the follower jump without the use of ... -
Experimental investigation of fatigue behavior of curved composite laminates
(Universitat Politècnica de Catalunya, 2016-07-07)
Projecte Final de Màster Oficial
Accés obert
Realitzat a/amb: Orta Doğu Teknik Üniversitesi (Ankara, Turkey)In the aerospace and wind turbine industries, high demand for light weight structures with high strength extend the use of composite laminates in a wide variety of geometries as load carrying elements. However, more complex ... -
Fatiga de cimentaciones bajo cargas cíclicas: aplicación al caso de la eólica marina
(Universitat Politècnica de Catalunya, 2012-12)
Projecte Final de Màster Oficial
Accés obertEn primer lugar se pretende ilustrar como el concepto de fatiga puede servir para dar un tratamiento unificado a distintas metodologías existentes para el cálculo de los efectos de cargas cíclicas en geotecnia. Para ... -
Fatigue analysis of a naval composite structure
(CRC Press, 2020)
Text en actes de congrés
Accés restringit per política de l'editorialThe use of composite materials in marine industry has many potential benefits, such as lower weight. However, there are still some failure mechanisms, such as fatigue, that are not yet completely under- stood. This work ... -
Fatigue crack propagation behavior of a micro-bainitic TRIP steel
(2022-04)
Article
Accés obertControlling the grain size of steels is an effective way for tailoring their mechanical properties, such as yield strength, impact toughness, and ductility. In this study, a new industrial thermomechanical treatment was ... -
Fatigue enhancement and hardening effect through ultrasonic vibration assisted ball-burnishing process on AISI 1045 steel
(2024-01-01)
Article
Accés obertThis paper aims to present a study of the effects of ball burnishing with vibration assistance on the bending fatigue endurance of cylindrical specimens subjected to bending stress and obtain the best input parameters. The ... -
Fatigue prediction of composite materials, based on serial/parallel mixing theory
(2022-03-31)
Article
Accés restringit per política de l'editorialIn this work, a numerical procedure to obtain the fatigue performance of composite laminates is proposed. The formulation used is based on the Serial/Parallel Mixing Theory (SP-RoM) and a fatigue damage model. The SP-RoM ... -
Fatigue resistance evaluation of high Mn-TWIP steel through damage mechanics: A new method based on stiffness evolution
(2022-03-01)
Article
Accés obertThe work presented here deals with the implementation of a new methodology that allows fast and reliable determination of the fatigue strength. It is based on monitoring the specimen stiffness changes at different stress ... -
Fatigue testing and properties of hardmetals in the gigacycle range
(2017-01-01)
Article
Accés obertHardmetal products are frequently fatigue loaded in service, such as e.g. cutting tools for milling or percussion drills. In the present work, the fatigue behaviour of hardmetals was investigated into the gigacycle range ... -
Fracture toughness to assess the effect of trimming on the fatigue behaviour of high-strength steels for chassis parts
(2023)
Text en actes de congrés
Accés obertHigh-strength steels are widely used in vehicle body-in-white, offering a good balance between crashworthiness and lightweight design. The increased requirements of heavier electric vehicles, in terms of fatigue resistance ...