Modal behaviour of bones during fracture.
نویسندگان
چکیده
A common cause of human disability is related to the fracture of bones, complex structural materials whose properties vary with time. An analytical study (using ANSYS, a commercial finite element package) of bones under fracture conditions is presented, focusing on the frequency variation versus depth of crack, as well as on the evolution of strength in the fracture area.
منابع مشابه
Fracture of Femur: Simulation and Photoelasticity Analysis
Bones, particularly long ones, are among the most fascinating and intriguing materials, not only because of the complicated structure, but also because of their mechanical behavior, which is still not completely understood.Finite Element computer simulations of the modal behaviour of human femur were compared to experimental results of the resonance frequencies of actual bones, indicating that ...
متن کاملThe effect of keel fractures on egg-production parameters, mobility and behaviour in individual laying hens
A majority of laying hens fracture their keel bones during the laying cycle. It is not easy for a farmer to identify hens with fractures and hen survival rate seems high. Thus, the effect of both recent and healed fractures on bird welfare is unclear. We aimed to investigate the impact of these keel-bone fractures on hens’ production and behaviour. The egg production, mobility and behaviour of ...
متن کاملA Case Report of Chronic Nonunion Thighbone Fracture Treatment Based on Iranian Traditional Medicine
Objective Nonunion fracture of lower-extremity long bones is really important because these bones bear the weight of the body. Some reasons of nonunion fracture are: Instability and immobility of the fractured fragments; insufficient blood supply to the fractured site; and damage to periosteum and necrosis of periosteal cells caused by insufficient blood supply. There are two methods of nonunio...
متن کاملStudy on the strengthening mechanisms and failure modes of the ultra-fine grained tri-modal Al5083-5wt. %B4C-Al2024 and Al5083-5 wt. %B4C-Al5083 composites
In this paper, the influence of Al2024 and Al5083 aluminum alloy coarse grains on mechanical properties and fracture mechanism of Al5083-B4C tri-modal composite has been discussed. Al5083 alloy powders with 5 wt. % of boron carbide were milled for 36 hours and 25 and 50 wt. % of coarse grain (CG) Al2024 and Al5083 powders were added to the milled powders and then hot press under argon atmospher...
متن کاملPlastic deformity of forearm bones in skeletally mature patients (case repor)
Introduction: Plastic deformation of long bones can occur at any age, but is several times more common in children than in adults. This situation in adults is so rare that even a single case can be reported. The cause of the lower incidence in adults is the larger mineral content of adult bones relative to water with smaller haversian canals in comparison to children. Case report: Here we rep...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Computer methods in biomechanics and biomedical engineering
دوره 13 1 شماره
صفحات -
تاریخ انتشار 2010