Salt crystallization is one of the most powerful weathering agents that may cause a rapid change in the mechanical properties of stones, and thus limit their durability. Consequently, determining the mechanical properties of stones due to salt crystallization is important for natural building stones used in marine environmental and mild climatic conditions, which expose excessive salt crys...

Prior studies indicated that mechanical loading influences cell turnover and matrix remodeling in tissues, suggesting that mechanical stimuli can play an active role in engineering artificial tissues. While most tissue culture studies focus on influence of uniaxial loading or constraints, effects of multi-axial loading or constraints on tissue development are far from clear. In this study, we e...

This study proposes a novel approach to surface strain measurement for cylindrical rock specimens subjected uniaxial compression using distributed fibre optic sensing technology. The capability and accuracy of this in measuring the full-field distribution specimen have been verified by series compressive strength (UCS) tests on aluminium alloy, sandstone, granite. By analysing experimental resu...

The present work is focused on a comparative study of the effect Ti-Al interlayers and Ta alloying mechanical behavior Ti1−xAlxN coatings under normal contact pressure in-plane straining. loading samples was carried out by scratch testing, while tensile straining performed uniaxial tension coated steel substrates. Ti0.45Al0.55N Ti0.43Al0.45Ta0.12N monolithic as well Ti0.45Al0.55N/Ti0.45Al0.55 m...

Cylindrical concrete cores of 10 cm diameter and height were taken from the columns and shear walls of randomly chosen 5-40 years old reinforced concrete (RC) buildings located in different towns of Istanbul and Izmit (Kocaeli) in Turkey from 2000 to date. The ultrasonic pulse velocity (UPV) measurements and uniaxial compressive strength (UCS) tests were conducted on 200 concrete core specimens...

A new failure criterion was presented to predict the ultimate strength of shale under the triaxial and polyaxial state of stress. A database containing 93 datasets was obtained from the results of the uniaxial, triaxial, polyaxial compressive tests, an indirect tensile test was collected from reliable references, and this test was carried out on the shale samples taken from the southwestern oil...

Cyclic compressive force is an important mechanical stimulus on periodontal ligament (PDL). The differential expression of genes in PDL cells is thought to be involved in the remodeling of periodontal tissues subjected to mechanical stress. However, little is known about differentially expressed genes in PDL cells under cyclic compressive force. In our study, human PDL cells were subjected to 4...

The Z-effect phenomenon is a potential complication of two lag screw intramedullary nail designs used for fixation of intertrochanteric hip fractures, in which the inferior lag screw migrates laterally and the superior lag screw migrates medially during physiologic loading. The current investigation was undertaken in an attempt to reproduce the Z-effect phenomenon in a laboratory setting. Sixte...

background: mechanotransduction plays a pivotal role in remodeling and repair of skeletal tissues. this mechanism has been widely used in bone tissue engineering especially under in vitro conditions. to date, various stem cells have been used for this purpose. the present study was thefirst to evaluate the effect of mechanical loading on differentiation of human endometrial stemcells (hescs) to...