Articular cartilage is the soft tissue that covers contacting surfaces of bones in synovial joints. Cartilage is composed of chondrocytes and an extracellular matrix containing numerous biopolymers, cations and water. Healthy cartilage functions biomechanically to provide smooth and stable joint movement. Degenerative joint diseases such as osteoarthritis involve cartilage deterioration, result...

In this paper the influence of microstructure on crack initiation stress and ultimate strength is investigated using results and analysis of 32 triaxial compression tests performed on cylindrical cores of dolomite samples which exhibit a wide range of grain sizes and mosaic textures. All tests were performed at a constant strain rate, under confining pressures between 0 to 40 MPa. The predictiv...

The macroscopic aspects of adding basalt fiber (BF) to concrete has been the subject studies that document great increases in compression strength. Research into microscopic reinforcement mechanism is still an exploratory stage, and quantitative analysis visual observation fibers matrix are difficult. In this paper, effect on studied by means computed tomography (CT) scanning technology digital...

INTRODUCTION Blunt and penetrating liver injuries make up one‐third of all abdominal injuries, and 5% of all trauma admissions are due to injuries to this organ [1]. Additionally, the majority of blunt liver injuries stem from motor vehicle crashes (Moore 2004). Validated computational models of liver are useful for understanding injury to the liver from mechanical loading. It has been shown pr...

In order to understand the changes in properties of cemented tailings backfill (CTB) during curing process. this paper, CTB samples with a cement-sand ratio 1:6 were prepared and cured for 3, 5, 7, 14, 21, 28, 60, 140 200 days respectively, then series uniaxial compression tests carried out. Then stress-strain relationship, compressive properties, elastic modulus, etc. different age analyzed. R...

Viscoelastic material behavior is often characterized using one of the three measurements: creep, stress-relaxation or dynamic sinusoidal tests. A two-stage numerical method was developed to allow representation of data from creep and stress-relaxation tests on the Fourier axis in the Laplace domain. The method assumes linear behavior and is theoretically applicable to any transient test which ...

In my opinion both papers provide important new knowledge. However, I feel that a number of statements require corrections and comments. Wu et al. (2004) discuss the effects of friction on the unconfined compression experiment results. As one of the examples Wu et al. consider the unconfined compression of brain tissues as discussed in Miller and Chinzei (1997). Fig. 7a in Wu et al. (2004) is s...

1 2 Resilient modulus test is the recommended test to characterize subgrade soil for 3 pavement design in 1993 AASHTO pavement design guide as well as new proposed 4 Mechanistic-Empirical Pavement Design Guide (MEPDG). This test requires significant 5 resources including high level of technical capability to conduct. For smaller projects where 6 costly and complex resilient modulus testing is n...

Abstract Masonry components are frequently limited to increase structural capacity. Concrete confinement models commonly used develop generalised approaches for assessing the behaviour of confined masonry columns. and masonry, on other hand, differ significantly in terms physical mechanical qualities. Recent scientific studies experimental constrained columns have supplied useful knowledge. Whe...