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RISModeling Modulus Reduction in Bovine Trabecular Bone Damaged in Compression
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Loading bone beyond its yield point creates microdamage, leading to reduction in stiffness. Previously, we related microdamage accumulation to changes in mechanical properties. Here, we develop a ...
Microdamage Accumulation in Bovine Trabecular Bone in Uniaxial Compression
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study we investigated how microdamage accumulated with increasing compressive strain in bovine trabecular bone. We found that little damage is created in the linear elastic region, up ...
The Dynamic Compressive Response of Open-Cell Foam Impregnated With a Newtonian Fluid
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This analysis considers the flow of a highly viscous Newtonian fluid in a reticulated, elastomeric foam undergoing dynamic compression. A comprehensive model for the additional contribution of ...
The Dynamic Compressive Response of an Open-Cell Foam Impregnated With a Non-Newtonian Fluid
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The response of a reticulated, elastomeric foam filled with colloidal silica under dynamic compression is studied. Under compression beyond local strain rates on the order of 1 s−1, the ...
A Cellular Solid Model for Modulus Reduction Due to Resorption of Trabeculae in Bone
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In osteoporotic trabecular bone, bone loss occurs by thinning and subsequent resorption of the trabeculae. In this study, we compare the effects of density reductions from uniform thinning of ...
Analysis of Crack Growth in a 3D Voronoi Structure: A Model for Fatigue in Low Density Trabecular Bone
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Both creep and crack growth contribute to the reduction in modulus associated with fatigue loading in bone. Here we simulate crack growth and subsequent strut failure in fatigue in an open-cell, ...
A Phenomenological Model for Predicting Fatigue Life in Bovine Trabecular Bone
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Cyclic loading of bone during daily activities can lead to fatigue degradation and increased risk of fracture in both the young and elderly population. Damage processes under cyclic loading in ...
Results From Demineralized Bone Creep Tests Suggest That Collagen Is Responsible for the Creep Behavior of Bone
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Cortical and trabecular bone have similar creep behaviors that have been described by power-law relationships, with increases in temperature resulting in faster creep damage accumulation according ...
Creep Does Not Contribute to Fatigue in Bovine Trabecular Bone
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In both cortical and trabecular bone loaded in fatigue, the stress-strain loops translate along the strain axis. Previous studies have suggested that this translation is the result of creep ...
Creep Contributes to the Fatigue Behavior of Bovine Trabecular Bone
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Repetitive, low-intensity loading from normal daily activities can generate fatigue damage in trabecular bone, a potential cause of spontaneous fractures of the hip and spine. Finite element ...