Browsing School of Engineering by Author "Taylor, David"
Now showing items 1-20 of 21
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Age-related responses to injury and repair in insect cuticle
(The Company of Biologists Ltd, 2019)We evaluated the ability of female adult desert locusts (Schistocercagregaria) to repair injuries to their exoskeletons and restore mechanical strength over the course of their natural life. We discovered that younger ... -
Characterization of the Erosion of Soft Tissue by Surgical Mesh In Vitro
(Trinity College Dublin. School of Engineering. Discipline of Mechanical & Manuf. Eng, 2021)Surgical mesh implants have been extensively used in hernia treatment and pelvic organ procedures, such as organ prolapse and stress urinary incontinence. Since the onset of the use of such implants, major complications ... -
Computer approaches to total hip replacement evaluation just prior to operation
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 1999)The surgical operation of total hip replacement (THR) is, after 30 years, regarded as a successful medical procedure. The average life of an artificial hip has, however, remained at about 15 years for more than a decade, ... -
Failure mechanisms in bone - a mechanical and histological study
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2006)Repeated loading causes the development of microdamage in bone and may lead to failure by fatigue. Microdam age in the form of microcracks occurs naturally in bone due to the loads experienced during day-to-day activities, ... -
Investigating Failure Mechanisms, Defect Tolerance and Repair of Plant Stems for Practical Applications
(Trinity College Dublin. School of Engineering. Discipline of Mechanical & Manuf. Eng, 2022)Plants are complex in their biological composition and can provide inspiration for man-made engineering products. Designing bio-inspired products involves understanding the intricacies of plants? mechanical properties and ... -
Investigations into the mechanical properties of insect cuticle
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2016)Insect cuticle is a composite material comprised of chitin fibres embedded in a protein matrix. It performs a wide variety of functions across class Insecta, and as such displays a wide bandwidth of material properties. ... -
Mechanical properties of diamond impregnated cobalt metal matrix
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2011)Diamond Impregnated Metal Matrix (DIMM) composite materials are a class of materials used in cutting and drilling of stone and construction materials. This thesis examined the effects of diamond size and diamond concentration ... -
Microcracks and the fatigue behaviour of compact bone
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2001)Microcracking in bone acts as a stimulus for bone remodelling, contributes to the loss of bone quality in osteoporosis and is thought to play a major role in both fragility and stress fractures. This study seeks to refine ... -
Prediciton of fatigue failure in engineering components using the finite element method
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2000)Prediction of fatigue failure in engineering artefects is becoming increasingly important as we enter the third millennium; more catastrophic fatigue failures will occur as engineers push the limits of design even further ... -
Responses of bone cells to microinjury
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2012)Microdamage in bone has been implicated as a principal stimulator of bone remodeling through the release of numerous biochemical factors. Such factors initiate the bone resorbing and bone forming potential of the constitutive ... -
Self-healing materials: What can nature teach us?
(2017)Natural materials such as bone and insect cuticle are capable of self-repair, a facility that greatly increases their durability and safe working stress. Some engineering materials have also been designed to be self-healing, ... -
Simulation of bone fracture and cutting using the theory of critical distances
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2008)This work was concerned with the prediction of bone fracture in situations where fracture was initiated in areas of stress concentration. Two conditions were studied: (i) fracture in bones and bone samples weakened by the ... -
Simulation of microcrack growth and repair in living bone
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2013)As they are the structural components of the body, bones are subjected to the accumulation of damage because of cyclical stress (fatigue). The fatigue damage in bone takes the form of microscopic cracks (microcracks) that ... -
Stress concentrations in bone cement : a critical distance approach
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2009)Bone cement is a biomaterial which is used in the fixation of orthopaedic implants. Despite its extensive use it is regarded as the 'weak link' in cemented arthroplasties, fatigue failure of the cement mantle being a major ... -
Targeted bone remodelling : investigating the scissors model
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2013)Bone is continually being removed and replaced through the actions of basic multicellular units (BMU). This constant upkeep is necessary to remove microdamage and thus maintain the integrity of the bone. Microdamage forms ... -
The cellular transducer in damage-stimulated bone remodelling
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2004)People with osteoporosis, osteopenia or weight baring joint replacement, due to an altered loading configuration, are more susceptible to microdamage accumulation than normal human beings as are athletes who undertake ... -
The effect of bone turnover on bone quality and material properties
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2008)Coined in French in the 1820s as a description of a pathological state of bone tissue, the term osteoporosis made its way into the English language only in the 20th century. Unlike other medical concepts, which have not ... -
The effect of stress concentrations on fatigue and fracture of 316L stainless steel micro-scale components
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2004)The aim of this work was to investigate the fatigue and fracture behaviour of microscopic specimens based on a biomedical component (the cardiovascular stent) and to modify existing theories to take account of the observed ... -
The fatigue behaviour of three-dimensional stress concentrations
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2003)The fatigue behaviour of complex three-dimensional notched components is a subject of great practical interest to industrial engineers. Unfortunately, the analysis of this type of feature presents problems for most assessment ...
