Modeling and numerical analysis of compression molding of three-dimensional thin parts with curing process

Article Abstract:

The simulations of flow, heat transfer and reaction kinetics during the compression molding of thin three-dimensional parts are possible by a new numerical model based on a moving boundary condition for the drag motion of an upper mold of a non-planar shape or for the apparent slipping events of particle filled materials. The part thickness and the mold closing velocity influence the gap-wise distributions of the temperature and degree of cure. The flow pattern is affected by the moving boundary conditions and the degree of cure is affected by temperature.

Models, Observations, Numerical analysis, Machine parts, Molding (Chemical technology), Molding

---

An experimental investigation of resin flow sensing during molding processes

Article Abstract:

Experimental analysis of the subsystems used for sensing resin flow dynamics during molding reveals that a DC circuitry-based electronic sensor is efficient in monitoring the resin flow by determining the electrical properties of the circuit. Alteration of the circuitry to monitor the resin flow at different positions in the circuit enhances the response time of the subsystem. One- and two-dimensional experiments validate the new sensing concept of resin flow dynamics.

Analysis, Concretes, Concrete, Motion detectors, Molding (Founding), Metal molding

---

Effect of cure state on stress relaxation in 3501-6 epoxy resin

Article Abstract:

Creep tests were undertaken on a 3501-6 epoxy resin at several different cure states. The isothermally cured Beam specimens were tested in three-point bending to obtain creep compliance. It was found that direct inversion was adequate for fully cured specimens, although the technique underpredicts the relxation modulus and transition for partially cured specimens. The results were compared with stress relaxation data from Kim and White.

Testing, Materials, Creep (Materials), Viscoelastic materials

Similar abstracts:

• Abstracts: Micromechanical analysis of dynamic behavior of conventional and negative Poisson's ratio foams. Micromechanical approach of lamellar nano-composites: influence of the microstructure on the yield strength
• Abstracts: Buckling analysis of multiwalled carbon nanotubes under torsional load coupling with temperature change. Yield and flow behavior of initially anisotropic aluminum tube under multiaxial stresses
• Abstracts: Event-driven careers for R&D professionals?. Disparity of the infusion of e-business within SMEs: A global perspective
• Abstracts: Modeling and risk assessment of tributylin accumulation in the food web of a shallow freshwater lake. Trophic-level differences in the biocentration of chemicals: implications in assessing environmental biomagnification
• Abstracts: Industrial emission control using lidar techniques. Application of elastic lidar to PM10 emissions from agricultural nonpoint sources

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.