Topic
Hydrostatic stress
About: Hydrostatic stress is a research topic. Over the lifetime, 1568 publications have been published within this topic receiving 37773 citations.
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TL;DR: In this article, a soft matrix with the Poisson ratio close to 0.5 and reinforced with a rigid-line inclusion is shown to experience a hydrostatic stress state and behaves as an incompressible fluid under longitudinal and transverse loads.
Abstract: The work illustrates that a soft matrix, which has the Poisson ratio close to 0.5 and is reinforced with a rigid-line inclusion, possesses an interesting behavior at the inclusion/matrix interface. It experiences a hydrostatic stress state and behaves as an incompressible fluid under longitudinal and transverse loads. The stress singularities are eliminated ahead of the inclusion tips, and when interface defects are formed, their effect on the composite compliance is minimal. These observations have far reaching applications when one is interested in mechanisms of multifunctional property improvement of composites (such as toughness and stiffness) learned from naturally occurring composites.
6 citations
TL;DR: In this paper, it was shown that crack initiation is related to a critical positive hydrostatic stress, which is known to be an intrinsic parameter for failure initiation in bulk polymers.
6 citations
TL;DR: In this article, a cubical triaxial tester was used to investigate the relationship between the dimension of powder bulk under compaction and the level of internal stress, and it was shown that the internal stress decreased when the distance from the load-acting surface became larger.
6 citations
TL;DR: In this article, the authors evaluated different weight percentages of nano-B4C incorporated into Ti-6Al-4V through a powder metallurgy technique, and the experimental results showed that the composite with 10 % nano-b4C demonstrates higher densification properties such as axial stress, axial strain, hoop stress, hydrostatic stress, and Poisson's ratio.
Abstract: The present research evaluates different weight percentages of nano-B4C incorporated into Ti-6Al-4V through a powder metallurgy technique. Nano-B4C weight percentage was set at 0 %, 5 %, and 10 % with a particle size of ≤100 nm. Cylindrical preforms with different initial preform densities were prepared using a suitable die and punch assembly. Further, the preforms were sintered in a muffle furnace with argon atmosphere at a temperature of 1 100 °C for a holding period of 1 hr. Cold deformation experiments were carried out using a 1 000 kN hydraulic press; incremental loading steps of 5 kN were applied on the preform until the first visible cracks appeared on the free surfaces. The experimental results have shown that the powder metallurgy composite with 10 % nano-B4C demonstrates higher densification properties such as axial stress, axial strain, hoop stress, hydrostatic stress, and Poisson's ratio.
6 citations
TL;DR: In this article, the process of ultra-high-speed nano-grinding of V-grooves was studied by the molecular dynamics method and it was found that the phenomenon of unequal height on both sides of the V-shaped groove was affected by the rake angle of the abrasive grains.
6 citations