Hygrothermal Ageing Effects on the Static Fatigue Behaviour of a Glass Epoxy. Composite Damage Mechanisms Mapping

1995 ◽  
Vol 50 (1) ◽  
pp. 97-104
Author(s):  
A. Chateauminois ◽  
L. Vincent
Keyword(s):  
Epoxy Composite ◽  
Fatigue Behaviour ◽  
Static Fatigue ◽  
Damage Mechanisms ◽  
Ageing Effects ◽  
Composite Damage ◽  
Hygrothermal Ageing

Influence of hygrothermal ageing on the damage mechanisms of flax-fibre reinforced epoxy composite

2013 ◽  
Vol 48 ◽  
pp. 51-58 ◽  
Author(s):  
Daniel Scida ◽  
Mustapha Assarar ◽  
Christophe Poilâne ◽  
Rezak Ayad
Keyword(s):  
Epoxy Composite ◽  
Flax Fibre ◽  
Damage Mechanisms ◽  
Hygrothermal Ageing

Hygrothermal ageing effects on the static fatigue of glass/epoxy composites

Composites ◽  
1993 ◽  
Vol 24 (7) ◽  
pp. 547-555 ◽  
Author(s):  
A. Chateauminois ◽  
B. Chabert ◽  
J.P. Soulier ◽  
L. Vincent
Keyword(s):  
Epoxy Composites ◽  
Static Fatigue ◽  
Ageing Effects ◽  
Hygrothermal Ageing

Integrally-Stiffened Composite Damage Tolerance Evaluated by Computational Simulation

2001 ◽  
Author(s):  
Christos C. Chamis ◽  
Levon Minnetyan
Keyword(s):  
Material Properties ◽  
Composite Structures ◽  
Failure Modes ◽  
Damage Tolerance ◽  
Epoxy Composite ◽  
Computational Simulation ◽  
Computer Code ◽  
Simulation Design ◽  
Damage Initiation ◽  
Composite Damage

Abstract An integrally stiffened graphite/epoxy composite rotorcraft structure is evaluated via computational simulation. A computer code that scales up constituent micromechanics level material properties to the structure level and accounts for all possible failure modes is used for the simulation of composite degradation under loading. Damage initiation, growth, accumulation, and propagation to fracture are included in the simulation. Design implications with regard to defect and damage tolerance of integrally stiffened composite structures are examined. A procedure is outlined regarding the use of this type of information for setting quality acceptance criteria, design allowables, damage tolerance, and retirement-for-cause criteria.

Mechanical, thermal and fatigue behaviour of surface-treated novel Caryota urens fibre–reinforced epoxy composite

2020 ◽  
Author(s):  
V. R. Arun Prakash ◽  
J. Francis Xavier ◽  
G. Ramesh ◽  
T. Maridurai ◽  
K. Siva Kumar ◽  
...  
Keyword(s):  
Epoxy Composite ◽  
Fatigue Behaviour

scholarly journals Statistical-Probabilistic Approach to the Lifetime and Strength Degradation of E-Glass Filaments and Bundles under Constant Tensile Loading in Water

2019 ◽  
Vol 3 (3) ◽  
pp. 78
Author(s):  
Jacques Lamon ◽  
Mohamed R’Mili
Keyword(s):  
Crack Growth ◽  
Slow Crack Growth ◽  
Probabilistic Approach ◽  
Tensile Tests ◽  
Fatigue Behaviour ◽  
Strength Degradation ◽  
Tensile Behaviour ◽  
Static Fatigue ◽  
Statistical Parameters ◽  
Pertinent Data

The present paper discusses the statistical features of static fatigue for E-glass multifilament tows in water. In such an aggressive environment, the glass fibres are sensitive to slow crack propagation from micron-sized flaws. Rupture and interrupted static fatigue tests under constant deformation in water, as well as tensile tests in inert environments on tows after fatigue were carried out on E-glass fibre tows that comprised around 2000 single filaments. The slow crack growth constants and the fast fracture statistical parameters for filaments were extracted from the outcome of experiments on tows, i.e., the load relaxation curves during fatigue and stress-strain curves during the tensile tests. These parameters provide a pertinent data base for the prediction of several characteristics in various conditions of fatigue for filaments and tows including statistical distributions of lifetimes and residual strengths, strength degradation during fatigue, size effects on lifetime and tow residual behaviour. Equations for calculation of filament lifetime and residual strength, and tow tensile behaviour were based on the model of slow crack growth and Weibull statistical distribution. Calculations using strength-probability-time relations provided insight into static fatigue behaviour of tows in water. Validity of the approach was assessed by the comparison of experimental and predicted tow residual behaviours.

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