This paper presents the formulae and finite element analysis models for predicting the Modulus of Elastic (MOE) and Modulus of Rupture (MOR) of Cathay poplar finger-jointed glulam. The formula of the MOE predicts the MOE of Cathay poplar glulam glued with one-component polyurethane precisely. Three formulae are used to predict the MOR, and Equation (12) predicts the MOR of Cathay poplar glulam ...

Some existing concrete structures not only face threats of possible explosions and impact, but also suffer from long-term fatigue loads induced by traffic or vibration machines. Researchers have conducted extensive investigations on against highly dynamic load, e.g., blast impact. However, the damage performance deterioration flexural members due to cyclic throughout service life been considere...

ABSTRACT This study aimed to determine the concentration of condensed tannins in bark Mimosa tenuiflora (Willd) Poir trees. Additionally, physical-mechanical properties cross-laminated timber (CLT) panels bonded with an adhesive based on M. were assessed. Bark was collected from five The formulation synthesized by mixing powdered tannins, paraformaldehyde, and water at 50 °C under continuous st...

Abstract Binderless particleboards were prepared without any resin adhesives from Broussonetia papyrifera trunk by hot pressing. The effects of particle size, pressing time, temperature and board density on the physical mechanical properties binderless boards investigated. chemical changes in investigated chemical, spectroscopic cellulose crystallinity analyses. bonding performance latex was di...

Larix gmelinii is the major tree species in Northeast China. The wood properties of different are quite and under strong genetic controls, so it can be better improved through oriented breeding. In order to detect longitudinal compressive strength (LCS), modulus rupture (MOR) elasticity (MOE) real-time, fast non-destructively, a prediction model mechanical with high precision stability construc...

An autoregressive (AR) model for the simulation of modulus elasticity (MOE) fluctuations along hardwood boards without pronounced knot periodicity is presented. The calibrated based on contiguous, localized (100 mm gauge length) empirical MOEs from European white oak boards. calibration involves computation sample autocorrelation function (SACF). For this computation, stationary data resulting ...

This paper presents an investigation on the influence of various factors rolling shear (RS) properties timber feedstock for cross laminated (CLT) available from Australian plantation forest resources. Comparison RS between three softwood species namely southern pine, radiata pine and hoop are presented. Furthermore, effect modulus elasticity (MOE), equilibrium moisture content (EMC), aspect rat...

The thermal modification of wood is a potential alternative method for improving properties. This paper evaluates the effect treatment on chemical, biological and mechanical properties African Whitewood (Triplochiton scleroxylon K. Schum) by subjecting to three temperature (200, 170, 140 ℃) at different time (3, 6, 12 h). Fourier Transformed infrared (FT-IR) spectrometer was used ascertain heat...

Pleurotus ostreatus (PO) is one of the edible mushrooms cultivated in baglog as medium. Baglog’s productive age around 4-5 weeks. The more PO produced, amount waste also increases. main component wood sawdust, which contains lignocellulose; therefore, has great potential to be used a raw material for making particleboard. This research aims make particleboard from and determine effect type adhe...