In this paper the derivation of the second differentiation of a general yield surface implicit time stepping method along with its consistent elastic-plastic modulus is studied. Moreover, the explicit, trapezoidal implicit and fully implicit time stepping schemes are compared in rate-dependant plasticity. It is shown that implementing fully implicit time stepping scheme in rate-dependant plasti...

BACKGROUND AND AIMS Recent global changes, particularly warming and drought, have had worldwide repercussions on the timing of flowering events for many plant species. Phenological shifts have also been reported in alpine environments, where short growing seasons and low temperatures make reproduction particularly challenging, requiring fine-tuning to environmental cues. However, it remains unc...

This research was conducted to determine the physical and mechanical properties of origin mixed soil with added steel slag (SS) bamboo leaf ash (BLA) classification based on Unified Soil Classification System (USCS) guidelines. study used a mixture variations (0% SS ; 0% BLA), (20% SS; 10% (40% (60% SS, 10 % (100% BLA) curing time 0 7 days. The test in this unsoaked CBR test. In USCS type syste...

Clayey soils are the most common material used for water sealing and undertake an important role in controlling landfill-related pollution. Organic liquids can adversely affect the effectiveness of clay liners by drastically increasing their hydraulic conductivity. The aim of this study is to investigate and compare the permeability in two types of clay with different plasticity, exposed to the...

Micropolar plasticity provides the capability to carry out post-failure simulations of geo-structures due to microstructural considerations and embedded length scale in its formulation. An essential part of the numerical implementation of a micropolar plasticity model is the integration of the rate constitutive equations. Efficiency and robustness of the implementation hinge on the type of int...

This talk will introduce the idea that talent development is related to learning where learning is the physiological process of neuro-plastic changes in the brain. To develop talents, individuals must move from novice or beginner’s status to expertise levels of knowledge or skills in a particular domain. Learning depends on maximizing an individual’s potential through the experience...

The behaviour of soil at the location of the project and interactions of the earth materials during and after construction has a major influence on the success, economy and safety of the work. Another complexity associated with some geotechnical engineering materials, such as sand and gravel, is the difficulty in obtaining undisturbed samples and time consuming involving skilled technician. Com...

General guidelines to reclaim saline or sodic soils do not adequately consider variables such as pH and the presence of organic matter that are known to affect soil stability. Poor structural stability of sodic, saline-sodic, and high-pH soils adversely influences crop yields; promotes piping, tunneling, and slope erosion; and can accelerate the failure of water conveyance systems. We evaluated...

this talk will introduce the idea that talent development is related to learning where learning is the physiological process of neuro-plastic changes in the brain. to develop talents, individuals must move from novice or beginner’s status to expertise levels of knowledge or skills in a particular domain. learning depends on maximizing an individual’s potential through the experiences he or she ...