Effect of Temperature on Static and Impact Properties of New Softwood Pallets

Abstract

The first part of this study verifies that static compressive strength of new wooden pallets decreases as temperature increases. The drop of compressive strength is at a small rate of 0.61 psi per 1°F of temperature increase within the temperature range of 80°F to 160°F. This is consistent with the current timber structural design practice. The strength reduction is small and has little effect on pallet static compression performance. The second part of this study investigates impact acceleration from free-fall drop tests performed at temperatures ranging from 80°F to 160°F. As temperature rises, specimens become weaker thus they absorb more impact energy, which results in lower impact acceleration. The drop of impact acceleration is also at a small rate of 0.034g per 1°F of temperature increase. When temperature rises from normal temperature of around 80°F to a high temperature of 160°F, the impact acceleration reduces about 2.72g. This rise results in less potential damages on products on the pallet. The third part of this study looks at the impact acceleration due to horizontal impact due to a forklift at a lower range of temperature of 33°F to 72°F. The drop of impact acceleration is at a faster rate of 0.674g per 1°F of temperature increase. When temperature drops from 59°F to 48°F, the impact acceleration increases about 7.41g. This increases the damage potential of products on pallets.

Pallet loading optimization considering storage time and relative humidity

“…Despite all these efforts, studies of the pallet loading problem considering humidity and storage time are very limited. For instance, a study by Malasri, Pourhashemi, Brown, Harvey, Moats, Godwin et al (2013) explained the effect of temperature and humidity on the strength of softwood pallets. Their study relied on the compression strength of the pallet to define its performance.…”

Effects of Storage Temperature and Sun Light Exposure on Some Bottled Water Marketed in Kirkuk City, North Iraq

“…Bottle producers have decreased the materials utilized through thickness decrease and intelligent auxiliary plan of water bottles. Amid dispersion and transport, bottled water is frequently set in a tall temperature environment [5].Variables such as expanding wellbeing awareness, cleanliness mindfulness, and need of well-developed open water foundation and request for useful bottled water are anticipated to fuel income and volume development of the worldwide bottled water showcase. Bottled water producers are presenting modern items with wellbeing benefits and modern flavor's which is coming about a few item dispatches within the bottled water market [6].The goal of this study is assessing the physicochemical water quality of a few bottled water that accessible in Kirkuk city, north Iraq utilizations of the come is about to measures as well as to detailed name values are displayed and the impacts of temperature and daylight on the quality of these bottled water.…”

Effect of Temperature on Drinking Water Bottles

“…In a previous study [2], the temperature inside a truck container could easily reach 150 This article reports the effect of high temperatures on the compression strength and bulging of bottled water.…”