scholarly journals Stress-Transfer Characteristics of Stress-Absorbing Elements in the IMZ Implant System. Part I. Stress Around a Freestanding Single Implant under Static Loading Conditions.

1992 ◽  
Vol 36 (5) ◽  
pp. 1102-1110 ◽  
Author(s):  
Masaki Sato ◽  
Takuo Kuboki ◽  
Muneo Itasaka ◽  
Yasuhiro Kondo ◽  
Atsushi Yamashita
Keyword(s):  
Static Loading ◽  
Stress Transfer ◽  
Loading Conditions ◽  
Transfer Characteristics ◽  
System Part ◽  
Implant System ◽  
Single Implant ◽  
Absorbing Elements

scholarly journals Rate-dependent ductile fracture under plane strain tension: experiments and simulations

2018 ◽  
Vol 183 ◽  
pp. 02022
Author(s):  
Vincent Grolleau ◽  
Vincent Lafilé ◽  
Christian C. Roth ◽  
Bertrand Galpin ◽  
Laurent Mahéo ◽  
...  
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
Plane Strain ◽  
Static Loading ◽  
High Strain ◽  
Fracture Initiation ◽  
Surface Strain ◽  
Experimental Program ◽  
Loading Conditions ◽  
Plane Strain Tension

Among all other stress states achievable under plane stress conditions, the lowest ductility is consistently observed for plane strain tension. For static loading conditions, V-bending of small sheet coupons is the most reliable way of characterising the strain to fracture for plane strain tension. Different from conventional notched tension specimens, necking is suppressed during V-bending which results in a remarkably constant stress state all the way until fracture initiation. The present DYMAT talk is concerned with the extension of the V-bending technique from low to high strain rate experiments. A new technique is designed with the help of finite element simulations. It makes use of modified Nakazima specimens that are subjected to V-bending. Irrespective of the loading velocity, plane strain tension conditions are maintained throughout the entire loading history up to fracture initiation. Experiments are performed on specimens extracted from aluminum 2024-T3 and dual phase DP450 steel sheets. The experimental program includes quasi static loading conditions which are achieved on a universal testing machine. In addition, high strain rate experiments are performed using a specially-designed drop tower system. In all experiments, images are acquired with two cameras to determine the surface strain history through stereo Digital Image Correlation (DIC). The experimental observations are discussed in detail and also compared with the numerical simulations to validate the proposed experimental technique

Use of luting agents with an implant system: Part II

1992 ◽  
Vol 68 (6) ◽  
pp. 885-890 ◽  
Author(s):  
Donna L. Dixon ◽  
Larry C. Breeding ◽  
Kevin R. Lilly
Keyword(s):  
Luting Agents ◽  
System Part ◽  
Implant System

Shear Lag Model for Regularly Staggered Short Fuzzy Fiber Reinforced Composite

2014 ◽  
Vol 81 (9) ◽  
Author(s):  
S. I. Kundalwal ◽  
M. C. Ray ◽  
S. A. Meguid
Keyword(s):  
Polymer Matrix ◽  
Interfacial Shear Stress ◽  
Stress Transfer ◽  
Fiber Reinforced ◽  
Shear Lag ◽  
Fiber Reinforced Composite ◽  
Shear Lag Model ◽  
Transfer Characteristics ◽  
Reinforced Composite ◽  
Lag Model

In this article, we investigate the stress transfer characteristics of a novel hybrid hierarchical nanocomposite in which the regularly staggered short fuzzy fibers are interlaced in the polymer matrix. The advanced fiber augmented with carbon nanotubes (CNTs) on its circumferential surface is known as “fuzzy fiber.” A three-phase shear lag model is developed to analyze the stress transfer characteristics of the short fuzzy fiber reinforced composite (SFFRC) incorporating the staggering effect of the adjacent representative volume elements (RVEs). The effect of the variation of the axial and lateral spacing between the adjacent staggered RVEs in the polymer matrix on the load transfer characteristics of the SFFRC is investigated. The present shear lag model also accounts for the application of the radial loads on the RVE and the radial as well as the axial deformations of the different orthotropic constituent phases of the SFFRC. Our study reveals that the existence of the non-negligible shear tractions along the length of the RVE of the SFFRC plays a significant role in the stress transfer characteristics and cannot be neglected. Reductions in the maximum values of the axial stress in the carbon fiber and the interfacial shear stress along its length become more pronounced in the presence of the externally applied radial loads on the RVE. The results from the newly developed analytical shear lag model are validated with the finite element (FE) shear lag simulations and found to be in good agreement.

Ternary PC/ABS/PMMA blends — morphology and mechanical properties under quasi-static loading conditions

Polimery ◽  
2012 ◽  
Vol 57 (2) ◽  
pp. 87-94 ◽  
Author(s):  
JAN RYBNICEK ◽  
RALF LACH ◽  
WOLFGANG GRELLMANN ◽  
MONIKA LAPCIKOVA ◽  
MIROSLAV SLOUF ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Static Loading ◽  
Loading Conditions ◽  
Pmma Blends ◽  
Morphology And Mechanical Properties
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