effect of small al additions, from 0.14% to 0.31% ai, on the hot deformation behavior of low carbon steels containing 1%cu-1.2%mn was investigated in the temperature range of 750-800•c over the strain rate range of 1o.3.1o.1s•1 by a hot compression testing machine. the flow curves obtained, exhibited typical characteristics of dynamic recovery type of softening mechanism, and the critical strai...

Large-strain monotonic and cyclic loading tests of AZ31B magnesium alloy sheets were performed with a newly developed testing system, at different temperatures, ranging from room temperature to 250 °C. Behaviors showing significant twinning during initial in-plane compression and untwinning in subsequent tension at and slightly above room temperature were recorded. Strong yielding asymmetry and...

The aim of this study is to determine the stress-strain behavior basalt fibred concrete experimentally. Cylinders standard size 150 x 300 mm are cast with and without fibres tested in uni-axial compression under strain control as per IS: 516-1999 understand concrete. After developing empirical equations for curves concrete, theoretical values stresses calculated at different strains based on de...

 There are increasing demands for measuring mechanical properties of small volumes of metal or smallsized materials used for Micro-Electro-Mechanical-Systems (MEMS). This is basically because such mechanical properties are closely related to the strength and reliability of the metal or systems. In this work, a nanoindentation technique with a spherical-tip is applied to the evaluation of elast...

Bolt reinforcement technology plays an important role in supporting the construction of many engineering fields, and uniaxial loading characteristics behavior tests anchors have great significance to research application anchors. Therefore, four anchor specimens GA ∼ GD were fabricated tested explore macro microbehavior under compression. The stress-strain curves for GC compression analyzed. cu...

In this paper, effects of critical parameters, namely initial gap, squeezing speed and applied current were statistically investigated on the mechanical behaviour of MR fluid in squeeze mode. A set of 17 experiments was designed using Design Expert 7 software to gather data from response surface methodology (RSM). The responses in terms of compression modulus were then calculated. An MRF132-DG ...

The correct determination of deformation capacity of a structural member will become more important in the future since nonlinear design methods will be used more often. This report deals with the examination of deformation capacity of the concrete compression zone. The influence of size and the effect of transversal reinforcement of prisms under eccentric compression on their deformation capac...

The eccentric compression behavior of laminated bamboo lumber (LBL) columns with a chamfered section was investigated using eccentricity 30 mm, 60 90 mm and 120 mm. effect ratio on the ultimate bearing capacity, strain failure mode analyzed through tests. modes LBL different eccentricities were basically same, which belonged to brittle tension failure. With increase in ratio, capacity gradually...

Strain-controlled fatigue of Mg–1Mn-0.5Nd (wt.%) alloy were studied by experiment and simulation. The microstructure was made up a dispersion strongly texture grains (13%) embedded in matrix with random texture. cyclic stress-strain curves showed limited tension-compression anisotropy because the Cyclic hardening under compression softening tension occurred due to presence twinning. Moreover, t...