Stimuli-reponsive polymers and their bioconjugates

Optimization Techniques with FORTRAN

Thermosensitive water-soluble copolymers with doubly responsive reversibly interacting entities

Smart polymers: Physical forms and bioengineering applications

This paper presents a review of the major fatigue models and life time prediction methodologies for fibrereinforced polymer composites, subjected to fatigue loadings In this review, the fatigue models have been classified in three major categories: fatigue life models, which do not take into account the actual degradation mechanisms but use S-N curves or Goodman-type diagrams and introduce some sort of fatigue failure criterion; phenomenological models for residual stiffness/strength; and finally progressive damage models which use one or more damage variables related to measurable manifestations of damage (transverse matrix cracks, delamination size) Although this review does not pretend to be exhaustive, the most important models proposed during the last decades have been included, as well as the relevant equations upon which the respective models are based

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Fatigue damage modeling of fibre-reinforced composite materials: Review

Flexural fatigue behaviour of random continuous-fibre-reinforced thermoplastic composites

Synthesis, characterisation and solution behaviour of thermo- and pH-responsive polymers bearing l-leucine residues in the side chains

The flexural fatigue behaviour of continuous glass-matreinforced thermoset-based composites was investigated using four-point bending. The tests were carried out adopting different stress ratios, R, i.e., the ratio of the minimum to the maximum applied stress. It was observed that the stress ratio has a strong influence on the fatigue life: given the maximum stress, passing from R=0.1 to R=0.7 can result in a two decades increase in the fatigue life. Fractographic studies revealed that debond fracture was the dominant damage process. The final failure occurred uniquely in the material volume subjected to tension and was probably initiated by the coalescence of smaller cracks into a single dominant crack. A model based on the residual strength degradation, which explicitly accounts for the stress ratio is proposed in order to express analytically the strength variation during fatigue cycle evolution.

Effect of Stress Ratio on the Flexural Fatigue Behaviour of Continuous Strand Mat Reinforced Plastics

Modeling the residual strength of carbon fiber reinforced composites subjected to cyclic loading

The principal features of models of structural relaxation in the glassy state were reviewed. The concepts of fictive temperature as the structural parameter and nonexponentiality and nonlinearity of structural relaxations were described. Various expressions for the structural relaxation time were presented and compared. One particular model was selected and utilized in a parametric optimization study of structural relaxation. Model predictions were checked against experimental results obtained by volumetric and calorimetric measurements.

Alberto D'Amore

Papers

Flexural fatigue behaviour of random continuous-fibre-reinforced thermoplastic composites

Synthesis, characterisation and solution behaviour of thermo- and pH-responsive polymers bearing l-leucine residues in the side chains

Effect of Stress Ratio on the Flexural Fatigue Behaviour of Continuous Strand Mat Reinforced Plastics

Modeling the residual strength of carbon fiber reinforced composites subjected to cyclic loading

Principal features of structural relaxation in glassy polymers. A Review