Prediction of creep-damage accumulation in glass fibre reinforced polyoximethylene

Zachariev, Georgi; Rudolph, Hans-Volker; Ivers, H.

doi:10.1016/j.msea.2008.04.114

Cited by 5 publications

(3 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where fl E assumes values following (6). Considering (5) and 7, it follows for long-term loading (σ = const.)…”

Section: Thermo-fluctuation Mechanism Of Damage (Mechanism I)mentioning

confidence: 99%

A Statistical Theory of the Damage of Materials

Zachariev¹

2016

MME

View full text Add to dashboard Cite

A statistical theory of disperse damage of materials gained under loading is proposed. It is based on the idea of distribution of potential damage spots within a specimen similar to the distribution of the strength values found by testing a set of identical specimens. A relation between damage risk and the probability of damage of a single specimen is assumed. It conforms to the relation between risk and probability of strength distribution of a set of identical specimens, according to Weibull's statistical theory of material strength. The damage risk just like the damage probability are assumed to be functions of loading and time. Damage is modeled regarding two mechanisms-thermo-fluctuation damage based on the kinetic theory of material strength, and damage depending on a parameter called loading degree (percentage), which depends on load and time. The first mechanism adopts two relations regarding energy barrier reduction due to loading. Equations of damage advance under short-term loading (with a constant rate of load increase) and under long-term (constant) loading are derived. Theoretical relations of damage development are compared with experimental evidence gained via specific tests on short glass fibre reinforced polyoximethylene. The damage itself consists of the accumulation of additional internal surfaces within the entire material volume as measured by small angle scattering X-ray refractometry. It is shown that the mechanism of damage as a function of loading degree where time participates implicitly, gains advantage over the kinetic mechanism where time is explicitly present. The cumulative functions derived for damage accumulation can be used to assess not only damage, but also for statistical analysis of the strength and other quantities.

show abstract

“…where fl E assumes values following (6). Considering (5) and 7, it follows for long-term loading (σ = const.)…”

Section: Thermo-fluctuation Mechanism Of Damage (Mechanism I)mentioning

confidence: 99%

A Statistical Theory of the Damage of Materials

Zachariev¹

2016

MME

View full text Add to dashboard Cite

show abstract

“…Non-destructive methods based on acoustic emissions have been used to determine the evolution of damage, and acoustic emission pattern recognition techniques have been applied to investigate the corresponding damage mechanisms [13,15,20,21]. Among others, l-CT experiments [22] and small-angle X-ray refraction techniques [18,23] have attracted attention. However, less cost-intensive methods for examining deformation behavior and drawing conclusions on applicationrelevant microscopic damage are available.…”

Section: Introductionmentioning

confidence: 99%

Orientation-dependent compression/tension asymmetry of short glass fiber reinforced polypropylene: Deformation, damage and failure

Hartl

Jerabek

Freudenthaler

et al. 2015

Composites Part A: Applied Science and Manufacturing

View full text Add to dashboard Cite

“…7 Among the fiber-reinforced materials glass fiber reinforced products (GRP) are the most economical and consequently have the highest potential of being cost effective. Mechanical properties of the glass fiber reinforced materials under short-term loading or in humid environment 8,9 were reported.…”

Section: Introductionmentioning

confidence: 99%

Mechanical behaviors of glass/polyester composites after UV radiation

Hongwang

2010

Journal of Composite Materials

View full text Add to dashboard Cite

Composites were fabricated by using glass fabric as the reinforcement and polyester as the matrix with the vacuum assisted resin infusion technique. Specimens were radiated by a Model SJD-1 ultraviolet lamp with various durations. The bending behavior, tensile strength, and the elongation at break of the UV radiated and unradiated composite panels were tested. The deteriorated mechanical properties of treated specimens were noticed. Usually, the bending strength would gradually decrease with prolonged UV radiation. The same trend was also seen for the tensile intensity of the samples. The corrosion process of the polymer caused by the oxygen in the atom state would be accelerated by the presentation of the UV ray, resulting in a serious damage on the material.

show abstract

Prediction of creep-damage accumulation in glass fibre reinforced polyoximethylene

Cited by 5 publications

References 3 publications

A Statistical Theory of the Damage of Materials

A Statistical Theory of the Damage of Materials

Orientation-dependent compression/tension asymmetry of short glass fiber reinforced polypropylene: Deformation, damage and failure

Mechanical behaviors of glass/polyester composites after UV radiation

Contact Info

Product

Resources

About