Article history: Received 12 July 2014 Accepted 11 September 2014 Available online 20 September 2014 A single hit, hot isothermal plane strain compression (PSC) test was used to understand the microstructural evolution during large strain deformation of aluminium–copper–lithium alloy AA 2195. Hot isothermal PSC tests were conducted in the temperature range of 300–450 C and at strain rates of 0....

The mechanical behavior of Zr41.25Ti13.75Cu12.5Ni10Be22.5 LM-1 has been extensively characterized under quasistatic loading conditions; however, its mechanical behavior under dynamic loading conditions is currently not well understood. A Split–Hopkinson pressure bar SHPB and a single-stage gas gun are employed to characterize the mechanical behavior of LM-1 in the strain-rate regime of 102–105 ...

Failure modes in recent earthquakes on lightly reinforced shear walls includes rebar fracture and out of plane buckling of its boundary elements. In latest edition of ACI 318 and also latest amendment of NZS 3101-2006 to avoid rebar fracture in boundary elements, the minimum reinforcement ratio for shear walls is increased. This experimental study investigates that rather than increasing reinfo...

In this work, 99.999% pure magnesium (Mg) single microcrystals have been deformed in [0001] compression (c-axis compression) and [101¯0] tension contraction) conditions at room temperature under loading rates ranging from 5 × 10−4 up to ∼590 s−1. The strain rate sensitivity apparent activation volume of prismatic pyramidal slip systems were evaluated. c-axis contraction, 45 s−1, the formation a...

The development of a twinned microstructure in hexagonal close-packed rolled magnesium compressed in the in-plane direction has been monitored in situ with neutron diffraction. The continuous conversion of the parent to daughter microstructure is tracked through the variation of diffraction peak intensities corresponding to each. Approximately 80% of the parent microstructure twins by 8% compre...

Abstract Compression of paperboard is a common procedure during industrial package forming and better knowledge the material response needed to avoid defective packages waste. To go beyond current modelling approaches, experimental identification mechanisms underlying macroscopic stress–strain responses needed. In this study, in-situ uniaxial compression studied through synchrotron tomography a...

Article history: Received 2 January 2015 Received in revised form 22 October 2015 Accepted 23 October 2015 Available online 27 October 2015 The hot deformation behaviour of Inconel alloy IN718 was studied in the temperature range of 950–1100 °C and at strain rates of 0.01 and 1 s with a view to understand the microstructural evolution as a function of strain rate and temperature. For this purpo...

Integrated field data, microstructural and three-dimensional strain analyses are used to document coaxial N-S shortening and southward increase in deformation intensity and metamorphism at the Jiaochang structure. Two episodes of deformation (D1,D2) with localized post-D2 deformation have been identified in the area. The first deformation (D1) episode is defined by a main axial-plane of paralle...

The formation of the shear band is associated with failure soil. However, there has been relatively little investigation on evolution bands in naturally structured clay a high sensitivity. In this study, undrained plane strain compression tests, digital image correlation (DIC) analyses, and scanning electron microscopy (SEM) tests were performed to investigate characteristics clay. basic mechan...