Self-healing resin systems have been discussed for over a decade and four different technologies had proposed. However, little work on their application as composite matrices has published although this was one of the stated aims earliest in field. This paper reports optimization solid-state self-healing system its subsequent use matrix high volume fraction glass fibre-reinforced composites. The optimized using Charpy impact testing repeated healing, while efficiency healing composites...

Curing aerospace composites is time-consuming with high energy requirements, particularly when using methods such as autoclaves, ovens and heated presses. This study investigates direct electric cure (DEC), which uses the Joule effect to directly heat carbon fibre their temperature. Its benefits include a significant increase in efficiency, control over temperature low void content compared oven curing. Samples were manufactured vacuum-assisted resin transfer moulding (VARTM) prepreg, well...

Openability of consumer packaging is becoming a major issue as the demographics society are changing and getting older. Sadly, ageing brings with it many issues, not least loss strength dexterity. In order to design effective packaging, understanding ability aged consumers crucial. This paper outlines development torque-measuring device results obtained date. Copyright © 2006 John Wiley & Sons, Ltd.

This paper presents a general overview of number optical fibre sensor systems which have been developed and used in advanced fibre-reinforced composites for in-situ process condition monitoring. The monitoring techniques were optical-fibre-based evanescent wave spectroscopy, transmission near-infrared spectroscopy refractive index sensors successful tracking the cure reaction. was carried out using two intensity-based systems: an extrinsic multi-mode Fabry-Pérot Bragg gratings. In addition...

The increased consumption of plastics in day to life has a significant impact on the environment. Life cycle assessment (LCA) is widely used select sustainable alternative plastic waste management. LCA studies mechanical recycling and energy recovery scenarios showed that resulted lower emissions provided benefits These results are valid only if performance recycled equivalent those virgin materials. Many have been focused individual categories rather than aggregated single score. decision...

This paper presents a study of the cure carbon fiber composites by direct application an electric current. The conductivity enables individual fibers to act as heating elements. result is large number elements throughout composite structure. These locally heat resin surrounding them, resulting in curing. shows that achieved samples up 60 × 25 cm. Initially, required contact arrangement obtain uniformly heated panel assessed and optimum achieved. Following this, change energy sample thickness...

This paper analyzes truck parking patterns in urban freight loading zones by jointly modeling the vehicle arrival rates and durations. Three models were explored: 1) Count data (Negative Binomial) for arrivals, 2) Survival (Weibull) model duration 3) A joint arrivals duration. The count estimates demand i.e., rate of arrival, while survival probability that a is parked one more minute. compared with separate predictability performance. dataset used this research obtained using mobile phone...

Nanoscale surface morphology of plant fibers has important implications for the interfacial bonding in fiber-polymer composites. In this study, we investigated and quantified effect plasma-surface modification on ramie as a potential tool simple efficient modification. The extensive investigation effects plasma treatment fiber nano-morphology its interface was performed by Low-Voltages Scanning Electron Microscopy (LV-SEM), infrared spectroscopy (FT-IR) analysis, fiber-resin angle...

A simple resistance-based sensor is presented, consisting of wire contacts embedded at the edge a carbon-fibre composite. The proved capable detecting barely visible damage, induced by falling-dart impact tester, and accurately providing damage location. It also possible to follow progression with increasing energies. analysis results was straightforward required no complex calculations. incorporation into practical composite manufacturing routines straightforward.

Abstract The ease with which a container can be accessed or its ‘openability’ is becoming more of an issue for manufacturers and consumers as the average age population increases. Ageing brings it range issues including loss strength reduced dexterity. This paper aimed to look at relationship between diameter, torque standard consumer closures using torque‐measuring device. results investigation show that larger‐diameter jars (85 mm) require much higher opening forces than smaller ones (75...

ABSTRACT Phenolics are widely used for over a century in different industries due to their chemical resistance and thermomechanical properties. However, the presence of voids phenolic resins has negative effects on mechanical properties conventional approach is avoid these by utilizing very long cure cycles. Our alternative investigates tailoring void size distribution achieve better balance between processing time Therefore, we produced resin with void‐free microstructure cycle as...

Nanoindenter tips are usually modelled as axisymmetric cones, with calibration involving finding a fitting function that relates contact area to depth. For accurate of shallow depth indentation, this is not ideal because it means deeper indents tend dominate the function. an object, always possible define equivalent radius (which, in case, nanoindentation linearly related reduced modulus) and obtain indentation The approach used here provide nanoindenter tip at three separate times....

Carbon fibre composites containing discrete inkjet printed monomeric inclusions demonstrate improved interlaminar properties and recovery after damage.