Development in open source three-dimensional (3D) printing has generated interest for creating low-cost customised objects; both personal and commercial. In the 3D process, quality cost of objects produced are normally influenced by processing parameter. One parameter is infill patterns. Infill patterns can be used to reduce material usage time. Various available software. Four different were evaluate mechanical properties fabricated parts. Open printer was print five PLA specimens each...

Balance in the human body’s movement is generally associated with different synergistic pathologies. The trunk supported by one’s leg most of time when walking. A person poor balance may face limitation performing their physical activities on a daily basis, and they be more prone to having risk fall. ground reaction forces (GRFs), centre pressure (COP), mass (COM) quite standing posture were often measured for evaluation balance. Currently, there still no experimental evidence or study...

An understanding of the biomechanical characteristics and configuration flexible locked plating in order to provide balance stability flexibility implant fixation will help construct promote fast bone healing. The relationship between applied loading implantation for best healing is still under debate. This study aims investigate strength, working length, interfragmentary strain (εIFM) on femoral midshaft transverse fractures. fracture was fixed with a fragment locking compression plate...

A systematic modeling of uncertainty due to image processing, material characteristics and experimental works was developed in order propose a novel stochastic image-based multi-scale method for heterogeneous media. The effective mechanical properties with application three porous trabecular bone models were predicted by introducing the correction factor (β) represent miscellaneous errors or unknown factors. Finally, probability density obtained properties, which could evaluate reliability...

An assessment of the mechanical properties trabecular bone is important in determining fracture risk human bones. Many uncertainty factors contribute to dispersion estimated bone. This study was undertaken order propose a computational scheme that will be able predict effective apparent elastic moduli considering uncertainties are primarily caused by image-based modelling and stiffness orientation. The effect which focused on connectivity also investigated. A stochastic multi-scale method...

The effect of nano clay filler on the mechanical and morphological properties Napier/epoxy composites was investigated. Neat, 2 wt%, 3 4 wt% 5 Montmorillonite (MMT) filled were fabricated by vacuum infusion technique. These specimens tested in three points bending according to ASTM D790. flexural stress-strain curve, strength, modulus strain failure then discovered based test results. results revealed that strength increased when a particular amount added epoxy matrix. yielded highest with...

Abstract This project explores EasyOCR’s performance with Latin characters under image degradation. Variables like character-background intensity difference, Gaussian blur, and relative character size were tested. EasyOCR excels in distinguishing unique lowercase uppercase but tends to favor for similar shapes C, S, U, or Z. Results showed that high differences affected OCR output, confidence scores ranging from 3 % 80%. Higher caused confusion between o 0, i 1. Increased blur hindered...

Osteogenesis imperfecta (OI) is a genetic disease which affecting the bone geometry. In severe case, this can cause death to patients. The main issue of prediction on fracture by orthopaedic surgeons. resistance withstand force before bones often become concern. Therefore, objective present preliminary study was investigate risk associated with OI bone, particularly in femur, when subjected self-weight. Finite element (FEA) employed reconstruct model and analyse mechanical stress response...

Children with Osteogenesis Imperfecta (OI) often vulnerable to fracture even on their daily basic tasks. The unpredicted leads intramedullary surgery. This study aims investigate the risk in children OI tasks including standing, walking, and jumping. Ten models of finite elements were reconstructed based radiography CT image enrolled patients. An actual body weight patient was used as main force acting vertically towards femoral head then observed. In standing walking configuration, all ten...

Randomness in the microstructure due to variations microscopic properties and geometrical information is used predict stochastically homogenised of cellular media. Two stochastic problems at micro-scale level that commonly occur fabrication inaccuracies, degradation mechanisms or natural heterogeneity were analysed using a homogenisation method based on first-order perturbation. First, influence Young's modulus variation an adhesive macroscopic aluminium-adhesive honeycomb structure was...

An expandable rigid PU foam can turns into complex shapes, with a shell like structure on the outside and honeycomb inside, which be easily shaped to vertebra form. The present study aims determine whether polyurethane was an appropriate substitute for block model trabecular bone. Static compression tests were performed compressive moduli yield stresses three densities namely 0.16 g/cm3, 0.24 g/cm3 0.42 g/cm3. Morphology of foams all also observed. modulus found varied from 40 43 MPa 83 92...

This study presents a numerical methodology to clarify the morphology of complex trabecular network architecture in human lumbar vertebra by means new post-processing technique for calculated microscopic stress homogenization method. Micro-CT image-based modeling is used and careful but intuitive easy-to-use method microstructure model, other words region interest (ROI), also presented. The macroscopic homogenized properties that include not only Young's moduli shear could explain difference...

This paper presents the analysis and evaluation of chassis design for University Automotive Racing Team No. 4 (UniART4) car based on finite element analysis. The existing UniART4 was measured modelled geometrically using Solidwork before analysed in FEA software (ANSYS). Four types static structural were used to predict capability under four different loading conditions; vertical bending, lateral torsion horizontal lozenging. results showed subjected highest stress strain lozenging, whereas...

Osteogenesis Imperfect (OI) is a genetic disease which affects the bones and causes lifelong illness. Often this leads to repeatable fracture without early awareness. Thus, identify variation of loading direction on femoral head might help in prediction bone OI. This study aims investigate risk OI during stance configuration through finite element analysis. Ten models with different level severity bowing angles were developed. The force sagittal frontal view consisted 12 boundary condition...

The primary objective of this study was to investigate the effect moisture absorption on mechanical degradation hybrid Napier/glass-epoxy composites. composites plates were produced by vacuum infusion method using epoxy resin as a matrix. composite specimens tested after following 50 h water immersion. content decreased glass fibre increased. wet and dry samples subjected tensile tests. incorporation into Napier grass fibre-epoxy enhanced their strength modulus. modulus (24/6–70 vol%) 43 MPa...