Biaxial Tensile Mechanical Properties of HTPB Solid Propellant
International Journal of Aerospace Engineering, 2023 The purpose of this work is to study the effects of different loading rate ratios and loading speeds on the biaxial tension of hydroxyl-terminated polybutadiene (HTPB) solid propellant. A proper kind of biaxial tensile specimen with which the stresses in
Li Jin +3 more
doaj +1 more source
Reduced order numerical modeling for calibration of complex constitutive models in powder pressing simulations [PDF]
Science of Sintering, 2017 Numerical simulations of different ceramic production phases often involve complex constitutive models, with difficult calibration process, relying on a large number of experiments.
Pandey Shwetank +2 more
doaj +1 more source
Understanding Curly Hair Mechanics: Fiber Strength [PDF]
Journal of Investigative Dermatology, 2020 The relationship between the geometric and mechanical profiles of hair fibers has been studied, with special focus on curly samples. Incidental observations pointed to a significantly different viscoelastic character with varying curliness. Further investigations confirmed initial observations, showing an initial distinct toe region behavior for curly ...
Elsabe Cloete +2 more
openaire +2 more sources
Strain Prediction of Grain in Solid Rocket Motor under the Pressure Curing Molding Technology
International Journal of Aerospace Engineering, 2023 The residual strain generated in grains during the propellant manufacturing process can significantly impact the safety and stability of solid rocket motors.
Kaining Zhang +3 more
doaj +1 more source
Mechanical strength of highly porous ceramics [PDF]
Physical Review B, 1991 This paper reports on the mechanical strength of highly porous ceramics in terms of the Weibull and Duxbury-Leath distributions. More than 1000 side-crushing strength tests on silica-catalyst carriers of various particle sizes have been performed in series. Within a series, preparation conditions were kept constant.
VANDENBORN, IC +4 more
openaire +3 more sources
Ultrathin acoustic metamaterial as super absorber for broadband low-frequency underwater sound
Scientific Reports, 2023 In this work, an ultrathin acoustic metamaterial formed by space-coiled water channels with a rubber coating is proposed for underwater sound absorption. The proposed metamaterial achieves perfect sound absorption ( $$\alpha$$ α > 0.99) at 181 Hz, which
Xindong Zhou +2 more
doaj +1 more source
Study of the Mechanical Strength Improvement of Wafers for EWT Solar Cells by Chemical Etching after the Drilling Process [PDF]
, 2011 Mechanical stability of EWT solar cells deteriorates when holes are created in the wafer. Nevertheless, the chemical etching after the hole generation process improves the mechanical strength by removing part of the damage produced in the drilling ...
Barredo Egusquiza, Josu +3 more
core +5 more sources
Tunable photon blockade in a hybrid system consisting of an optomechanical device coupled to a two-level system [PDF]
, 2015 We study photon blockade and anti-bunching in the cavity of an optomechanical system in which the mechanical resonator is coupled to a two-level system (TLS).
Gu, Xiu +4 more
core +2 more sources
Evaluation of the mechanical properties of self compacting concrete using current estimating models. Estimating the modulus of elasticity, tensile strength, and modulus of rupture of self compacting concrete [PDF]
, 2011 This study includes an analysis of the applicability of current models used for estimating the mechanical properties of conventional concrete to self-compacting concrete.
Agranati Landsberger, Galit +2 more
core +3 more sources
Hydrogels by irradiation of a synthetic heparinoid polyelectrolyte [PDF]
, 1983 Gamma irradiation of aqueous solutions of a synthetic heparinoid polyelectrolyte results in the formation of hydrogels, varying in water content and mechanical strength.
Bantjes, A. +5 more
core +8 more sources