in this study, displacement field around v-notches of a poly methyl metha crylate (pmma) specimen with tip cracks will be analyzed using digital image correlation technique. first intensity factor in combination with in-plane rigid body translations and rotation components will be determined by linear least squares fitting of the displacement field data to the corresponding relations among stre...

In this paper the effect of composite hoop-wrapped on stress intensity factor for semi-elliptical external crack which located in spherical pressure vessel, were investigated through the Finite Element Analysis. In order to find the effect of some parameters such as composite thickness and width, internal pressure and crack geometry, comparisons between different cases were done and discussed i...

Postischemic temperature, which modulates brain injury, is commonly determined via a rectal temperature (Trec) probe. This procedure causes a stress-induced fever (SIF) in rodents that may aggravate injury or diminish the efficacy of a neuroprotectant. We continually measured core temperature (Tcore) via an implanted telemetry probe and made 16 Trec measurements over 4 days in sham and ischemic...

Acoustic emission (AE) was monitored during stress intensity factor (SIF)-controlled high-cycle fatigue (HCF) tests on an aluminum 2024-T3 specimen with a crack growing at its center. The SIF control implemented in such manner that growth could be slowed down and even inhibited while the experiment continued. In beginning, specific type of AE signal observed allowed to grow up approximately 9.4...

Natural fiber is recognized for having a lower density than synthetic fiber, as well being cheaper, more plentiful, and most significantly, renewable. In Malaysia, the focus on waste somehow produces an abundance of bio in form leaves, mainly composted or burned, thus wasting good potential sources. The burning leaves will lead to environmental pollution problems. Many researchers have investig...