Abstract. Based on a continuum model of solid-solid phase transformations, the macroscopic response of a bar of a thermoelastic phase transforming material loaded quasistatically is investigated. A critical loading rate is identified for the evolution of a single phase boundary in the bar during an isothermal process. It is shown that, when the loading rate is larger than this critical loading ...

The effects of loading rate on the reinforced concrete beams are experimentally studied in the present paper. Firstly, the effects of strain rate on the different grades of concrete are investigated using the electro-hydraulic servo-controlled testing system at the strain rate that might be experienced during earthquakes. Based on the test results, the dynamic increasing factors (DIF) of concre...

Numerical analysis software based on linear finnite element method and statistical damage theory concrete material has been adopted in this study. Dynamic numerical model of twin fibers pullout test matrix have created by considering the meso-heterogeneity material. The whole process from micro-cracks initiation, propagation to crack penetration simulated. influence stress wave loading peak rat...

Nail joints are one of the key components that control lateral performance light wood frame shear walls. In previous experimental studies, researchers have used different loading rates, which failed specimens from less than a minute to more an hour, study characteristics nail joints. Moreover, there been protocols for testing timber or Although some efforts made address this subject, it is stil...

The anaerobic digestion process is globally applied to the treatment of highly concentrated wastes such as industrial and rural effluents, and sewage sludge. However, it is known to be relatively unstable. When loaded with high concentrations of organic material, unwanted volatile fatty acids (VFA) are often produced rather than methane (CH4) gas which can lead to digester acidification and fai...