Material characterization of laminated composite materials using a three-point-bending technique

2009 ◽  
Vol 88 (4) ◽  
pp. 624-628 ◽  
Author(s):  
T.Y. Kam ◽  
C.M. Chen ◽  
S.H. Yang
Keyword(s):  
Composite Materials ◽  
Material Characterization ◽  
Laminated Composite ◽  
Three Point Bending ◽  
Laminated Composite Materials

Experimental Techniques for Dynamic Characterization of Composite Materials

1995 ◽  
Vol 117 (1) ◽  
pp. 94-100 ◽  
Author(s):  
Robert Greif ◽  
Benjamin Hebert
Keyword(s):  
Composite Materials ◽  
Material Characterization ◽  
Room Temperature ◽  
Dynamic Properties ◽  
Flexural Modulus ◽  
Bending Test ◽  
Dynamic Characterization ◽  
Three Point Bending ◽  
Experimental Approaches

This research combines theoretical and experimental approaches for dynamic material characterization of composite materials. The samples studied include continuous fiber graphite/epoxy beams with various symmetric lay-up configurations. Included are laminated beams with the following lay-ups: [08/908]s, [908/08]s, [(45/0/−45)5]s and [(0/45/0/−45)3/90/0/01/2]s. The resonant dwell technique is used to determine the material damping and the real part of the dynamic flexural modulus of double cantilever beam specimens in the first mode of vibration over the frequency range 25 Hz to 300 Hz. The dynamic properties are determined as a function of the frequency of oscillation at room temperature. In addition, the Metravib Viscoanalyzer, based on off-resonance tests, is also used to provide another source of experimental data for comparison. Although the Viscoanalyzer was originally intended for testing viscoelastic polymers, the present research establishes the limits of applicability for composite materials, with particular emphasis on the three point bending test. Comparisons and limitations of both techniques are critically discussed.

scholarly journals Homogeneous Pinus sp. particle boards reinforced with laminated composite materials

2016 ◽  
Vol 36 (3) ◽  
pp. 558-565 ◽  
Author(s):  
André L. Christoforo ◽  
Maria F. do Nascimento ◽  
Tulio H. Panzera ◽  
Sérgio L. M Ribeiro Filho ◽  
Francisco A. R. Lahr
Keyword(s):  
Composite Materials ◽  
Castor Oil ◽  
Mechanical Performance ◽  
Laminated Composite ◽  
Laminated Plates ◽  
Modulus Of Rupture ◽  
Bending Test ◽  
Three Point Bending ◽  
Polyurethane Resin ◽  
Laminated Composite Materials

ABSTRACT This study aimed to evaluate the mechanical performance of laminated composite materials (fiberglass, carbon, sisal, palm fiber) in epoxy matrix as reinforcement in wood particleboards of Pinus sp. with bicomponent polyurethane resin from castor oil. Modulus of elasticity (MOE) and modulus of rupture (MOR) were investigated using a three-point bending test. Single-layered laminated plates were used to reinforce traction of specimens obtained from boards. MOE and MOR of materials developed without reinforcements exceeded limits in ABNT standards both NBR 12810-2:2002 and A208.1:199, proving therefore their feasibility. In all investigated cases, inclusion of reinforcements led to higher values for both MOE and MOR. Composites in fiberglass presented the best results.

Stress and conditions of continuity of laminated composite materials

1974 ◽  
Vol 10 (4) ◽  
pp. 394-401 ◽  
Author(s):  
V. A. Kolgadin ◽  
G. P. Bogatyr' ◽  
V. I. �tokova
Keyword(s):  
Composite Materials ◽  
Laminated Composite ◽  
Laminated Composite Materials

Achieving of sandwich-like laminated composite materials for robust superhydrophobicity, rapid photochromism and photo-mask writable media

2022 ◽  
Author(s):  
Guofeng Zhang ◽  
Linqi Huang ◽  
Fuchao Yang
Keyword(s):  
Composite Materials ◽  
Laminated Composite ◽  
Switching Rate ◽  
Lotus Leaf ◽  
Water Properties ◽  
Laminated Composite Materials ◽  
Photochromic Materials ◽  
Poor Stability

Photochromic materials with anti-water properties have impressed practical values, but their applications are severely hindered by poor stability and slow colour-switching rate. Inspired by the superhydrophobicity of lotus leaf and...

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