A finite element analysis of the load transfer between an above-knee residual limb and its prosthetic socket--roles of interface friction and distal-end boundary conditions.
A nonlinear finite element model was developed to investigate the manner of the load transfer between the above-knee residual limb and its prosthetic socket. The model was two-dimensional (2-D) with consideration of nonlinear boundary conditions and large deformation. Interface elements were used to simulate the friction/slip conditions between skin and the socket. Different distal-end conditions, including air cushion distal-end loading, were simulated to explore their influences on the load transfer.
Zhang
M
M
Rehabilitation Engineering Center, Hong Kong Polytechnic University, Kowloon, Hong Kong.
Mak
A F
AF
D000672:Amputation Stumps; D000674:Amputees; D001186:Artificial Limbs / Q000295:instrumentation*; D006801:Humans; D007719:Knee Joint / Q000502:physiology*; D007866:Leg; D008962:Models, Theoretical; D011474:Prosthesis Design; D017755:Prosthesis Fitting / Q000379:methods*; D013314:Stress, Mechanical; D016474:Weight-Bearing