Results 91 to 100 of about 689,495 (198)

Molecular weight effects on chain pull-out fracture of reinforced polymeric interfaces

open access: yes, 1999
Using Brownian dynamics, we simulate the fracture of polymer interfaces reinforced by diblock connector chains. We find that for short chains the interface fracture toughness depends linearly on the degree of polymerization $N$ of the connector chains ...
A. Ajdari   +37 more
core   +1 more source

Application of sacral-2-alar screws in lumbosacral stability

open access: yesZhongguo linchuang yanjiu
Objective To explore the maximum pull-out force of alar screws fixation in sacral 2 and investigate the effectiveness of this internal fixation method. Methods Five adult cadaver specimens fixed and wetted with formaldehyde solution were selected, as ...
CHEN Lianglong, FU Xingyu, TONG Xinzhou, ZHENG Yang, YANG Jinghai, LIU Jicheng, XIANG Zihui
doaj   +1 more source

Effect of Fabric Weave on Stick-Slip Properties of Woven Fabrics

open access: yesAUTEX Research Journal, 2014
The aim of this study was to understand the stick-slip properties of dry polyester plain, ribs and satin woven fabric weaves. It was found that the amount of stick-slip force was related to the number of interlacement points in the fabric, whereas the ...
Bilisik Kadir
doaj   +1 more source

Investigating Cumin Uprooting Dynamics: The Roles of Taproot Properties and Soil Resistance

open access: yesAgriculture
Cumin (Cuminum cyminum L. cv.′Xin Ziran 1′), classified within an agricultural crop, necessitates uprooting as a critical harvesting process. In this paper, we tried to study the force dynamics behind direct cumin uprooting by developing mechanical ...
Sheng Tai   +4 more
doaj   +1 more source

Mechanical Properties and In Vitro Corrosion Behaviors of Biodegradable Magnesium Alloy Suture Anchors

open access: yesMetals
Biodegradable suture anchors based on Mg-Nd-Zn-Zr alloy were developed for ligament-to-bone fixation in rotator cuff surgeries. The Mg alloy anchors were designed with structural features of narrow tooth and wide tooth, and simulated through finite ...
Lin Mao   +5 more
doaj   +1 more source

A Comparison of Micro-Switch Analytic, Finite element, and Experimental Results [PDF]

open access: yes, 2004
Electrostatically actuated, metal contact, micro-switches depend on having adequate contact force to achieve desired, low contact resistance. In this study, higher contact forces resulted from overdriving cantilever beam style switches, after pull-in or ...
Coutu, Ronald A., Jr.   +3 more
core   +1 more source

Calculation and Analysis of Load Transfer Characteristics of Tensile Anchors for Geotechnical Anchoring Systems

open access: yesApplied Sciences
In order to explore the problems of load transfer and anchorage mechanisms of tensile anchors under pull-out load for geotechnical anchoring systems, a step-wise mathematical model is established which considers the linear–nonlinear shear stress and ...
Zhiyuan Cheng   +3 more
doaj   +1 more source

A novel personalized homogenous finite element model to predict the pull-out strength of cancellous bone screws

open access: yesJournal of Orthopaedic Surgery and Research
Background Orthopedic surgeries often involve the insertion of bone screws for various fixation systems. The risk of postoperative screw loosening is usually assessed through experimental or finite element (FE) evaluations of the screw pull-out strength.
Alireza Rouyin   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy