Results 71 to 80 of about 36,976 (243)

Mechanical Behaviour of Vacuum‐Infused GFRP Composites at Elevated Temperatures—Influence of Fibre Architecture

Fire and Materials, EarlyView.
ABSTRACT This study addresses the influence of fibre architecture on the mechanical properties of vacuum‐infused glass fibre reinforced polymer (GFRP) composites at elevated temperatures (ET). Laminates with three different fibre configurations—unidirectional (UD), bidirectional 0°/90° cross‐ply (BD), and ±45° off‐axis angle‐ply (OA) – were tested in ...
Eloísa Castilho, João P. Firmo, Mário Garrido, João R. Correia, Afonso Ataíde   +4 more
wiley   +1 more source

Axial-torsional fatigue of pultruded glass-fiber tubes

Results in Engineering
Fatigue characteristics of the pultruded glass-fiber composites were extensively investigated experimentally. Tubular specimens with three-layer structure (mat, roving, mat) were subjected to simultaneous cyclic axial and torsional loads to initiate ...
Aleksandr Elkin, Oleg Staroverov, Valeria Abramova, Artur Kuchukov, Valeriy Wildemann, Ivan Sergeichev   +5 more
doaj   +1 more source

A bandwidth correction to the Allegri-Zhang solution for accelerated random vibration testing

MATEC Web of Conferences, 2018
In 2008, Allegri and Zhang published a study [Int. J. Fatigue. 2008, 30(6):967-977] in which they provided an exact analytical solution to the inverse scaling law for accelerated vibration tests of linear systems submitted to stationary Gaussian ...
Benasciutti Denis, Carlet Marta, Zanellati Davide   +2 more
doaj   +1 more source

Multiaxial hypopituitarism induced by neurosarcoidosis

Endokrynologia Polska
Not required for Clinical Vignette.
Pędziwiatr, Edward, Kaleta, Konrad, Możdżeń, Kamil, Murawska, Agnieszka, Hypnar, Julia, Makowska, Joanna S., Pośpiech, Jakub, Horosin, Grzegorz, Celejewska-Wójcik, Natalia, Bogusławska, Anna, Wójcik, Krzysztof, Hubalewska-Dydejczyk, Alicja   +11 more
openaire   +3 more sources

Capturing Complex Rate‐Dependent Behaviors of Saturated Clays: A Fractional Consistency Kinematic Hardening Viscoplastic Approach

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Saturated high plasticity clays show complex nonlinear, rate‐dependent, and hysteresis behaviors under non‐monotonic stress paths, requiring advanced mathematical constitutive equations for accurate description. Taking into account the inherent advantages of kinematic hardening mechanisms in simulating complex stress histories, this paper ...
Wei Cheng, Zhen‐Yu Yin
wiley   +1 more source

Multiaxial fatigue low cycle fatigue testing [PDF]

Multiaxial testing methods are reviewed. Advantages and disadvantages of each type test is discussed. Significant multiaxial data available in the literature is analyzed.
Zamrik, S. Y.
core   +1 more source

A probabilistic high cycle fatigue model applied to cast Al-Si alloys [PDF]

, 2013
In this work, the high cycle fatigue behavior of cast hypo-eutectic Al-Si alloys is investigated. It is observed that two different coexisting fatigue initiation mechanisms can occur in these materials depending on the presence of different ...
AUGUSTINS, Louis, BELLETT, Daniel, KOUTIRI, Imade, MOREL, Franck   +3 more
core   +3 more sources

Modelling strong seismic ground motion: three-dimensional loading path versus wavefield polarization [PDF]

, 2012
Seismic waves due to strong earthquakes propagating in surficial soil layers may both reduce soil stiffness and increase the energy dissipation into the soil.
D'Avila, Maria Paola Santisi, Lenti, Luca, Semblat, Jean-François   +2 more
core   +6 more sources

Comparing the In‐Plane Shear Behavior of Glass Fiber‐Reinforced and Carbon Fiber‐Reinforced Polymer Laminates With the Same Epoxy Matrix System in ±45° Tensile Tests

Polymer Composites, EarlyView.
Schematic illustration of ±45° tensile testing, including detection of first‐ply failure (FPF) by optical crack detection and acoustic emission monitoring, comparison of FPF values with ASTM D3518 and D3039 criteria, and resulting ply level stress states at FPF for GF‐ and CF‐epoxy laminates.
Maria Gfrerrer, Vasco D. C. Pires, Andreas J. Brunner, Clara Schuecker, Gerald Pinter   +4 more
wiley   +1 more source

Ultrahigh Stiffness and Energy Absorption Properties of Isotropic Metallic Closed Cell Microlattices

Small, EarlyView.
True closed cell microlattices without holes are fabricated for the first time using a novel Laser Sheet Fusion additive manufacturing technique. These microlattices exhibited isotropy in stiffness and surprisingly, strength and plasticity as well, despite orientation‐dependent failure mechanisms. Furthermore, material work hardening is shown to be key
Dominic Kang Jueh Lim, Chang Quan Lai
wiley   +1 more source