Experimental results on mechanical behaviour of metal anchors in historic stone masonry

2018 ◽  
Vol 163 ◽  
pp. 643-655 ◽  
Author(s):  
Rosana Muñoz ◽  
Paulo B. Lourenço ◽  
Susana Moreira
Keyword(s):  
Mechanical Behaviour ◽  
Experimental Results ◽  
Stone Masonry ◽  
Historic Stone

A framework for the behaviour of unsaturated expansive clays

1992 ◽  
Vol 29 (6) ◽  
pp. 1013-1032 ◽  
Author(s):  
A. Gens ◽  
E. E. Alonso
Keyword(s):  
Key Words ◽  
Mechanical Behaviour ◽  
Unsaturated Soils ◽  
Expansive Soils ◽  
Experimental Results ◽  
Structural Rearrangements ◽  
Expansive Clays ◽  
Clay Model ◽  
Model Predictions ◽  
Low Activity

The paper presents a framework for describing the mechanical behaviour of unsaturated expansive clays. It is an extension of an existing formulation developed for unsaturated soils of low activity. The extended framework is based on the distinction within the material of a microstructural level where the basic swelling of the active minerals takes place and a macrostructural level responsible for major structural rearrangements. By adopting simple assumptions concerning the coupling between the two levels, it is possible to reproduce major features of the behaviour of unsaturated expansive clays. Some selected qualitative comparisons between model predictions and experimental results reported in the literature are presented. Despite the simplified hypotheses made, a very encouraging agreement is obtained. Key words : capillarity, clay, model, unsaturation, suction, expansive soils.

Irradiation creep of SA 304L and CW 316 stainless steels: Mechanical behaviour and microstructural aspects. Part I: Experimental results

2011 ◽  
Vol 413 (2) ◽  
pp. 63-69 ◽  
Author(s):  
J. Garnier ◽  
Y. Bréchet ◽  
M. Delnondedieu ◽  
C. Pokor ◽  
P. Dubuisson ◽  
...  
Keyword(s):  
Mechanical Behaviour ◽  
Stainless Steels ◽  
Experimental Results ◽  
Irradiation Creep

A New Method on Laboratory Evaluation of the Effectiveness of Consolidant Treatments for the Conservation of Historic Stone Buildings and Sculptures

2010 ◽  
Vol 108-111 ◽  
pp. 184-189 ◽  
Author(s):  
Qiang Liu ◽  
Bing Jian Zhang
Keyword(s):  
Calcium Carbonate ◽  
Cultural Heritage ◽  
Evaluation Method ◽  
Preparation Method ◽  
Experimental Results ◽  
Laboratory Evaluation ◽  
Stone Decay ◽  
Simple Preparation ◽  
Stone Materials ◽  
Historic Stone

Historic stone materials have to deal with weathering. The desire to preserve cultural heritage created a wide variety of products to reduce the rate of stone decay and to strengthen decayed stone, but it is difficult to evaluate their protective efficiencies. In this paper, a simple preparation method of an imitation of weathering stone is reported. The imitation was prepared with calcium carbonate particles mixed with water. Then, using imitations as the consolidated objects, the consolidation efficiency of a novel biomimetic protectant was investigated. The experimental results indicate that the evaluation method is simple and feasible, and the selected protectant does perform a favorable function of consolidant. The characterization method is helpful in numerically giving some direct indications of the consolidation effectiveness.

Seismic assessment and retrofitting measures of a historic stone masonry bridge

2016 ◽  
Vol 10 (3) ◽  
pp. 645-667 ◽  
Author(s):  
Emmanouil N. Rovithis ◽  
Kyriazis D. Pitilakis
Keyword(s):  
Seismic Assessment ◽  
Stone Masonry ◽  
Historic Stone

Plastic Behaviour of Green Powder Metallurgical Compacts

2007 ◽  
Vol 534-536 ◽  
pp. 305-308
Author(s):  
Jose Manuel Prado
Keyword(s):  
Plastic Deformation ◽  
Internal Friction ◽  
Uniaxial Compression ◽  
Mechanical Behaviour ◽  
Experimental Results ◽  
Compression Tests ◽  
Contact Areas ◽  
Plastic Behaviour ◽  
Different Levels ◽  
Cam Clay

The results of monotonic and cyclic uniaxial compression tests, in which the deviatoric component of the stress is predominant, carried out on green and recrystallized iron compacts with different levels of density are presented and discussed in order to analyse the macro and micromechanisms governing the mechanical behaviour of non-sintered PM materials. The plastic deformation of the particles, especially at the contact areas between neighbouring particles, produces an internal friction responsible for the main features observed in the behaviour of green metallic compacts. These experimental results show important discrepancies with the plasticity models, Cam-Clay and Drucker-Prager Cap, used to simulate the powder compaction stage. Possible causes for these discrepancies are pointed out.

Construction of a finite element model for collisions of a golf ball with a club during swing

2012 ◽  
Vol 226 (2) ◽  
pp. 96-106 ◽  
Author(s):  
Katsumasa Tanaka ◽  
Katsuya Matsuoka ◽  
Shogo Fujita ◽  
Yukihiro Teranishi ◽  
Sadayuki Ujihashi
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Mechanical Behaviour ◽  
Element Model ◽  
Experimental Results ◽  
Golf Club ◽  
Modelling Method ◽  
Simulation Results ◽  
Using Data ◽  
Coordinate Data

The objective of this study was to construct a finite element model for simulating the mechanical behaviour of a golf club and ball from swing to impact. An experiment using a golf robot was conducted to obtain the motion of the shaft grip during the swing, and the behaviour of the club and ball during the swing and impact. The swing model was developed by inputting the positional coordinate data of the grip, which was obtained from an experiment, into the grip model. The simulation results generally matched the experimental results for the swing motion, the behaviour of the shaft during the swing and the clubhead velocity and orientation at impact. The modelling of the grip contributed to the accuracy of the simulation results by precisely representing swing motion and suppressing the generation of vibration in the shaft grip. This indicates that the components of the proposed modelling method may also be suitable for representing the swing using data obtained from the robot test, and that the model and the approach for modelling may have potential to be used as a predictable tool to supplement robot tests, reducing the dependency on prototypes.

Sign in / Sign up

Export Citation Format

Share Document