Recent developments in computer-integrated and robot-aided surgery--in particular, the emergence of automatic surgical tools and robots--as well as advances in virtual reality techniques, call for closer examination of the mechanical properties of very soft tissues (such as brain, liver, kidney, etc.). The ultimate goal of our research into the biomechanics of these tissues is the development o...

The mechanical properties of potato (Solanum tuberosum L.) in various treatments including: three different varieties (Agria, Satina and Caesar), ten levels of storage time (22 weeks), and three levels of loading direction were presented in this study by conducting 270 uniaxial compression tests. The tests were performed on potato flesh in real conditions of storage. The measurements were done ...

Three different samples of Ti -6Al-4V of size 10mm diameter x15mm height compressed at a strain rate of 102 sec -1 in a 100KN servo hydraulic machine (DARTEC, UK make) with three different initial temperatures. First specimen of Ti-6Al-4V was compressed at an initial temp 1123K from initial length 15 mm to 10mm then the temperature was reduced to 1073K and compressed to a length of 7 mm now the...

The longevity of grouting has a significant effect on the safe and sustainable operation of many engineering projects. A 500-day experiment was carried out to study the long-term mechanical behavior of nano silica sol grouting. The nano silica sol was activated with different proportions of a NaCl catalyst and cured under fluctuating temperature and humidity conditions. The mechanical parameter...

This paper models hot compression testing using a dilatometer in loading mode. These small-scale tests provide high throughput at low cost, but are susceptible to inhomogeneity due friction and temperature gradients. A novel method is presented for correcting the true stress-strain constitutive response over full range of temperatures, strain-rates strain. The nominal from used predict offset c...

A semi-empirical elasto-plastic constitutive model with a hyperbolic stress-strain curve was developed the goal of predicting seismic compression unsaturated sands in funicular regime soil-water retention (SWRC) during undrained cyclic shearing. Using flow rule derived from energy considerations, evolution plastic volumetric strain (seismic compression) predicted shear strains hysteretic curve....

Uniaxial compressive stress-strain curves of several groups basalt fiber crumb rubber mortars (BF-CRM) with different contents are tested. By comparing the GZH model, improved values parameters BF-CRM constitutive model based on obtained. Then, taking supporting scheme main substation mine as background, using FLAC3D to simulate roadway support, replace ordinary in original and combining triaxi...

This article focuses on a systematic study of Ti-6Al-4V alloy in order to extensively characterize the main mechanical properties at macro-, micro- and submicrometric length scale under different stress fields. Hardness, elastic modulus, true stress–strain curves strain-hardening exponent are correlated with intrinsic ?- ?-phases that constitute this alloy. A characterization process followed, ...

The mechanical processes that underlie mild traumatic brain injury from physical insults are not well understood. One aspect in particular that has not been examined is the tissue fluid, which is known to be critical in the mechanical function of other organs. To investigate the contributions of solid-fluid interactions to brain tissue mechanics, we performed confined compression tests, that fo...