Bamboo-bundle laminated veneer lumber (BLVL) was produced by joint lengthening technology. The objective of this study was to evaluate the effect of joint form and the values of key parameters on mechanical properties of BLVL. Two joint forms, i.e., finger joint and scarf joint, and two corresponding joint parameters, i.e., finger length and scarf angle, were investigated in laminates. The resu...

in order to simultaneously improve wet and dry strengths of paper and decrease environmental issues related to the wet strength resins, in this study effect of application method of wet strength additives on paper properties was investigated. wet strength resins were applied in four methods including spraying an aqueous glyoxal solution on to the surface of wet paper, addition of aminated polya...

Shale, like many other sedimentary rocks, is typically heterogeneous and anisotropic and is characterized by partial alignment of anisotropic clay minerals and naturally formed bedding planes. In this study, a micromechanical framework based on the lattice discrete particle model is formulated to capture these features. Material anisotropy is introduced through an approximated geometric descrip...

Equivalent stiffness of clamped plates should be prescribed not only to evaluate the strength of bolted joints by the scheme of “joint diagram” but also to make structural analyses for practical structures with many bolted joints. We estimated the axial stiffness and bending stiffness of clamped plates by using Finite Element (FE) analyses while taking the contact condition on bearing surfaces ...

Nanoparticles (NPs) are widely used in many practical applications. However, their deformation behaviors and the subsequent effects on mechanical properties pure nanoparticle-modulated systems still remain unclear. These research challenges were systematically investigated using coarse-grained molecular dynamics simulations. Firstly, it was observed that both stiffness tensile strength of NPs s...

Background: Determining the stability of a callus distraction is today largely based on measurement of bone density and qualitative evaluation of bone structure on plain radiographs. In the present study, we demonstrate how computed tomography (CT) and finite element (FE) models can be used together in a simple and effective manner to evaluate the healing of a leg lengthening. Method of Approac...

This paper investigates the effects of cuticular wax on the release of strain and on the tensile properties of enzymatically isolated cuticular membranes (CMs) taken from leaves of agave (Agave americana), bush lily (Clivia miniata), holly (Ilex aquifolium), and ivy (Hedera helix) and from fruit of apple (Malus × domestica), pear (Pyrus communis), and tomato (Lycopersicon esculentum). Biaxial s...

AIM To determine whether translaminar facet screws can provide stability equivalent to pedicle screws in two-level anterior lumbar interbody fusion. MATERIAL AND METHODS We performed a biomechanical study using 12 fresh human lumbar spines and tested intact spine, stand-alone two-level ALIF and anterior fusion augmented with pedicle screws or translaminar facet screws under 400N ...

This study was conducted to develop a detailed, nonlinear three-dimensional geometrically and mechanically accurate finite-element model of the human lower cervical spine using a high-definition digitizer. This direct digitizing process also offers an additional method in the development of the finite-element model for the human cervical spine. The biomechanical response of the finite-element m...

Osteoporosis is a widely spread disease with severe consequences for patients and high costs for health care systems. The disease is characterised by a loss of bone mass which induces a loss of mechanical performance and structural integrity. It was found that transverse trabeculae are thinned and perforated while vertical trabeculae stay intact. For understanding these phenomena and the mechan...