Composite sandwich beams
Evaluation of the impact resistance of various composite sandwich beams by vibration tests
... entangled sandwich materials in comparison with standard sandwiches with honeycomb and foam cores, is uniquely based on vibration test results ...entangled sandwich materials has been carried out both ...
31
Evaluation of the impact resistance of various composite sandwich beams by vibration tests
... of sandwich structures, underscoring the need for reliable damage detection techniques for composite sandwich ...of composite materials there seems to be a tendency to use damping as a damage ...
32
Fabrication and mechanical testing of glass fiber entangled sandwich beams: A comparison with honeycomb and foam sandwich beams
... of sandwich core plays an important role in the design of sandwich structures subjected to flexural loading [7,8] ...of sandwich beams [9–11] . The vibration characteristics of sandwich ...
11
Fabrication and mechanical testing of glass fiber entangled sandwich beams: A comparison with honeycomb and foam sandwich beams
... of sandwich core plays an important role in the design of sandwich structures subjected to flexural loading [7,8] ...of sandwich beams [9–11] . The vibration characteristics of sandwich ...
10
Simultaneous geometrical and material optimal design of hybrid elastomer/composite sandwich plates
... Finally, we observe that the damping efficiency is always weak- er for low eigenfrequencies than for high ones. It can be easily ex- plained by recalling that the damping capabilities of the structure are defined by the ...
6
Anomaly edge effects in thermographic nondestructive testing of polymeric composite sandwich panels
... A two-dimensional thermographic nondestructive testing (NDT) model of a polymeric composite sandwich panel containing a planar anomaly within its core is presented, a[r] ...
78
Damage Mechanics Modelling of the shear nonlinear behavior of Nomex honeycomb core. Application to sandwich beams
... of sandwich panels and they can be obtained by fol- lowing normalized tests given in standards like ASTM C365 or C273 to determine their resistance to compression or shear ...
12
Damage Mechanics Modelling of the shear nonlinear behavior of Nomex honeycomb core. Application to sandwich beams
... of sandwich panels and they can be obtained by fol- lowing normalized tests given in standards like ASTM C365 or C273 to determine their resistance to compression or shear ...
11
NDT of bonded composite patches on aluminum beams using integrated ultrasonic transducers
... / La version de cette publication peut être l’une des suivantes : la version prépublication de l’auteur, la version acceptée du manuscrit ou la version de l’éditeur. Access and use of [r] ...
2
Carbon fibre/pvc foam sandwich composite modelization for MAVs & long range drones structures
... a composite structure used for MAV or generally for drones ...design. Composite structures are extremely difficult to simulate due to the anisotropic ...(AIREX) sandwich composite ...
7
Cyclic load resistance of reinforced concrete beams retrofitted with composite laminates
... When testing crack propagation in metals, thickness is an important consideration since it can affect the mode of propagation. Research has shown that fatigue cracking [r] ...
90
High damping and nonlinear vibration of sandwich beams with entangled cross-linked fibres as core material
... core sandwich beams for a broader frequency range of 50 Hz to 2000 Hz, which covers the first four bending modes of the ECF beam and the first three bending modes of the honeycomb ...
26
2012 — Shear strengthening of reinforced-concrete beams using advanced composite materials
... the beams strengthened with CFRP ...these beams can be attributed to the effect of the continuity of the CFRP ...RC beams starts to bend as flexural cracks propagate in the concrete tension ...
223
Mechanical Behavior of a Sandwich Composite with Cardboard Core Reinforced Fabric
... The sandwich proposed constituted of two skins armed by metal grids impregnated with epoxy matrix type STR and souls composed of hybrid corrugated cardboard reinforced by fabric. Sever[r] ...
1
Mechanical performance of adhesively bonded repairs in honeycomb composite sandwich structures
... 20 Li et al. [29] developed a 3D finite element model to investigate the tensile performance of CFRP scarf-lap joints. The model was based on cohesive zone elements for the adhesive bondline and each ply of laminate was ...
262
Etude de l'impact oblique à haute vitesse sur des structures en sandwich composite : application aux pales d'hélicoptère
... L’âme des structures sandwich peut être de deux types différents : en mousse ou en nid d’abeille. Il existe de grandes différences de comportement entre ces deux types de matériaux. Aminanda [AMINANDA, 2004] a ...
205
Distribution of temperature in steel and composite beams and joints under natural fire
... POSITE BEAMS AND JOINTS UNDER NATURAL FIRE_ The control of fire by mankind has definitely enabled it to improve its level of well-being and its conditions of life but fire has also been a source of danger for ...
10
Damage tolerance of composite honeycomb sandwich panels under quasi-static bending and cyclic compression
... The damage resistance and damage tolerance of minimum gauge face sheet sandwich panels subjected to quasi-static four point bending and cyclic column compression, was[r] ...
202
Significance of low energy impact damage on modal parameters of composite beams by design of experiments
... fibre-reinforced composite laminates is experiencing an increased growth, namely in the aeronautical, naval and automotive industries, because of their excellent mechanical properties in conjunction with their low ...
9
Correlating low energy impact damage with changes in modal parameters: a preliminary study on composite beams
... Weight of mass + impactor tip + force sensor = 2.03 kg The composite beam specimens have three states. First one is the undamaged state (UD), the second is the damage state due to 4 impacts (D1) and the third is ...
27