Search results for "TRES"
showing 10 items of 6927 documents
Thermo-Mechanical Behaviour of Flax-Fibre Reinforced Epoxy Laminates for Industrial Applications
2015
The present work describes the experimental mechanical characterisation of a natural flax fibre reinforced epoxy polymer composite. A commercial plain woven quasi-unidirectional flax fabric with spun-twisted yarns is employed in particular, as well as unidirectional composite panels manufactured with three techniques: hand-lay-up, vacuum bagging and resin infusion. The stiffness and strength behaviours are investigated under both monotonic and low-cycle fatigue loadings. The analysed material has, in particular, shown a typical bilinear behaviour under pure traction, with a knee yield point occurring at a rather low stress value, after which the material tensile stiffness is significantly r…
Finite element multi-scale modeling of the failure mechanisms in a 3D woven composite
2013
International audience
Response to the Letter to the editor regarding “Targeting NUPR1 with the small compound ZZW-115 is an efficient strategy to treat hepatocellular carc…
2021
A Quantitative Analysis of the Thermoelastic Effect in CFRP Composite Materials
2010
In this study the thermoelastic signal from carbon fibre-reinforced plastic (CFRP) laminates is investigated. A comparison between the theoretical and experimental values of the thermoelastic signal is reported, with the theoretical predictions obtained from two different quantitative models. These models are based on the classic thermoelastic effect law extended to the case of orthotropic materials (by using the mesomechanical or bulk approach), and the modified law assuming that the surface resin-rich layer behaves as a strain witness of the laminate. It is found that the theoretical predictions of the two models can be strongly and differently influenced by the intrinsic orthotropy of ca…
Evaluation of web reinforcements in prestressed concrete box girders through shear-transverse bending domains
2020
In concrete box girders, the amount and distribution of reinforcements in the webs have to be estimated considering the local effects due to eccentric external loads and cross-sectional distortion and not only the global effect due to the resultant forces of a longitudinal analysis: shear, torsion and bending. This work presents an analytical model that allows designers to take into account the interaction of all these effects, global and local, for the determination of the reinforcements. The model is based on the theory of stress fields and it has been compared to a 3D finite element analysis, in order to validate the interaction domains. The results show how the proposed analytical mode…
Testing and Modeling of Hybrid Steel-Trussed Concrete Beams in Shear
2014
La consommation culturelle a changé, les organisations culturelles s'adaptent
2006
Ammattikorkeakoulu toisin ajateltuna : osaaminen, sivistys ja tiedon intressit
2019
Ammattikorkeakoulujen lakisääteisessä tehtävässä korostuvat työelämän tarpeisiin vastaaminen, alueellinen kehittäminen ja yhteistyö elinkeino- ja muun työelämän kanssa. Laki kehystää toimintaa mutta jättää tilaa tulkinnoille. Pohdimme tulkintoja tiedosta, osaamisesta, tutkimuksesta ja ammattikorkeakoulun yhteiskunnallisesta tehtävästä. Perustamme tarkastelun antiikin filosofin Aristoteleen klassiseen erotteluun tiedon muodoista ja saksalaisen kriittisen yhteiskuntafilosofin Jürgen Habermasin teoriaan tiedon yhteiskunnallisista intresseistä. Rakennamme kaksi lähestymistapaa ammattikorkeakoulutukseen, tutkimukseen ja ammattikorkeakoulun yhteiskunnalliseen tehtävään: rajattu ja laaja näkemys. …
Associations of Work-Family Conflict with Family-Specific, Work-Specific, and Well-Being-Related Variables in a Sample of Polish and Ukrainian Adults…
2022
The conflict between work and family demands increased during the COVID-19 pandemic due to changes in lifestyle related to the lockdown. This study examines the associations between work-family conflict (WFC) and family-work conflict (FWC) with work-specific, family-specific, and well-being-related variables during the second wave of the COVID-19 pandemic. The results may be used in practice to improve the well-being of employees by adjusting home-based work and family areas of life to dynamic changes during the pandemic. The sample of 736 adults from Poland (53.26%) and Ukraine (46.74%), aged between 19 and 72 (M = 39.40; SD = 10.80), participated in the study. The cross-sectional study wa…
Bending Work Time: Curvilinear Relationship Between Working Time Dimensions and Psychological and Somatic Symptoms.
2020
Objectives Study examines the curvilinear associations of working time dimensions (working hours, time pressure, work schedules, and control of work time and pace) on psychological and somatic symptoms. Methods Representative Finnish Quality-of-Work-Life Surveys conducted in 2003, 2008 and 2013 were restricted to those (N=11,165) regularly working over 10h/week with more than one-year tenure in their job. Generalised additive models were utilised in analysis. Results Working hours had U-shaped relationships with psychosomatic symptoms, while time pressure had a threshold effect. Work pace control had linear effect. The effects of work time control and work schedules were insignificant. Ther…