scholarly journals ANALYSIS OF UNIAXIAL COMPRESSION FAILURE OF CONFINED CONCRETE BY THREE DIMENSIONAL RIGID BODY SPRING MODEL

2010 ◽  
Vol 66 (4) ◽  
pp. 433-451 ◽  
Author(s):  
Yoshihito YAMAMOTO ◽  
Hikaru NAKAMURA ◽  
Ichiro KURODA ◽  
Nobuaki FURUYA
Keyword(s):  
Rigid Body ◽  
Uniaxial Compression ◽  
Three Dimensional ◽  
Confined Concrete ◽  
Spring Model ◽  
Compression Failure

scholarly journals ANALYSIS OF COMPRESSION FAILURE OF CONCRETE BY THREE DIMENSIONAL RIGID BODY SPRING MODEL

2008 ◽  
Vol 64 (4) ◽  
pp. 612-630 ◽  
Author(s):  
Yoshihito YAMAMOTO ◽  
Hikaru NAKAMURA ◽  
Ichiro KURODA ◽  
Nobuaki FURUYA
Keyword(s):  
Rigid Body ◽  
Three Dimensional ◽  
Spring Model ◽  
Compression Failure

Scaphoid nonunion and distal fragment resection: analysis with three-dimensional rigid body spring model

2009 ◽  
Vol 14 (2) ◽  
pp. 144-149 ◽  
Author(s):  
Hiroshi Matsuki ◽  
Emiko Horii ◽  
Masataka Majima ◽  
Eiichi Genda ◽  
Shukuki Koh ◽  
...  
Keyword(s):  
Rigid Body ◽  
Three Dimensional ◽  
Distal Fragment ◽  
Spring Model ◽  
Scaphoid Nonunion

Evaluation of three-dimensional effects in short deep beams using a rigid-body-spring-model

2011 ◽  
Vol 33 (9) ◽  
pp. 978-991 ◽  
Author(s):  
Yasar Hanifi Gedik ◽  
Hikaru Nakamura ◽  
Yoshihito Yamamoto ◽  
Minoru Kunieda
Keyword(s):  
Rigid Body ◽  
Three Dimensional ◽  
Spring Model ◽  
Deep Beams ◽  
Dimensional Effects

Theoretical Stress Analysis in Wrist Joint – Neutral Position and Functional Position

2000 ◽  
Vol 25 (3) ◽  
pp. 292-295 ◽  
Author(s):  
E. GENDA ◽  
E. HORII
Keyword(s):  
Rigid Body ◽  
Stress Analysis ◽  
Wrist Joint ◽  
Three Dimensional ◽  
Force Distribution ◽  
Neutral Position ◽  
Spring Model ◽  
Triangular Fibrocartilage ◽  
Theoretical Stress ◽  
Functional Position

A three-dimensional rigid body spring model (3D-RBSM) was used to analyse force distribution through the wrist joint. In the neutral position, 48% of the force was transmitted through the radioscaphoid fossa, 40% through the radiolunate fossa, and 12% through the triangular fibrocartilage complex. In the functional position, the wrist joint was slightly extended, resulting in significantly increased force through the lunate (53%). The lunate appears to bear more load than has been reported previously.

Measurement of Angular Acceleration of a Rigid Body Using Linear Accelerometers

1975 ◽  
Vol 42 (3) ◽  
pp. 552-556 ◽  
Author(s):  
A. J. Padgaonkar ◽  
K. W. Krieger ◽  
A. I. King
Keyword(s):  
Experimental Data ◽  
Rigid Body ◽  
Simple Procedure ◽  
Three Dimensional ◽  
Angular Acceleration ◽  
Theory And Practice ◽  
Body Segments ◽  
Impact Biomechanics ◽  
The Stability ◽  
Definition Of

The computation of angular acceleration of a rigid body from measured linear accelerations is a simple procedure, based on well-known kinematic principles. It can be shown that, in theory, a minimum of six linear accelerometers are required for a complete definition of the kinematics of a rigid body. However, recent attempts in impact biomechanics to determine general three-dimensional motion of body segments were unsuccessful when only six accelerometers were used. This paper demonstrates the cause for this inconsistency between theory and practice and specifies the conditions under which the method fails. In addition, an alternate method based on a special nine-accelerometer configuration is proposed. The stability and superiority of this approach are shown by the use of hypothetical as well as experimental data.

Loading transfer mechanism of a piled raft subjected to normal faulting in sand

2022 ◽  
Vol 12 (1) ◽  
pp. 1-19
Author(s):  
Q. Cai ◽  
B. Xiang ◽  
C. W. W. Ng ◽  
K. S. Wong ◽  
X. Chen ◽  
...  
Keyword(s):  
Finite Difference ◽  
Hanging Wall ◽  
Three Dimensional ◽  
Pile Group ◽  
Transfer Mechanism ◽  
Centrifuge Test ◽  
Fault Rupture ◽  
Normal Faulting ◽  
Compression Failure ◽  
Piled Raft

Although different kinds of foundations have been investigated against an earthquake faulting, the interaction between pile group and dip-slip fault has not yet been fully understood. This letter investigates the interaction between piled raft and normal faulting by means of centrifuge and numerical modelling. In centrifuge test, a piled raft was simulated with a half model for a better observation of fault rupture path under the raft. The loading transfer mechanism was further examined using a three-dimensional finite difference software (FLAC3D). The measured and computed results showed that the piled raft displaced and tilted linearly with the magnitude of faulting. The fault rupture bifurcated into two and diverted towards both edges of the raft. Two types of loading transfer mechanism were identified during faulting. Working load transferred from the raft to the underneath piles, and also from the piles on the side of the hanging wall to the piles on the footwall side, resulting in compression failure of the piles on the footwall side.

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