a coefficient of elasticity of a substance equal to minus the ratio of the applied stress (p) to the resulting fractional change in volume (dV/V) in a specified reference state (dV/V is the bulk strain)
Symbol: K
bulk modulus in American English
noun
Physics
a coefficient of elasticity of a substance, expressing the ratio between a pressure that acts to change the volume of the substance and the fractional change in volumeproduced
Word origin
[1905–10]This word is first recorded in the period 1905–10. Other words that entered Englishat around the same time include: Expressionism, cadre, scrounge, stabilizer, thiamine
Examples of 'bulk modulus' in a sentence
bulk modulus
Bulk modulus, thermal expansion and internal pressure are obtained for isothermal compression.
Huaming Li, Yongli Sun, Mo Li 2015, 'Equation of state of liquid Indium under high pressure', AIP Advanceshttp://dx.doi.org/10.1063/1.4931812. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Bulk modulus showed fluctuation in its variation with an increasing swelling period.
M Akhtar, Md Velden, SSA Al-Houqani 2013, 'Investigation of Pre- and Post-Swelling Behavior of Elastomeric Material', The Journal of Engineering Researchhttps://journals.squ.edu.om/index.php/tjer/article/view/124. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The lattice constant, bulk modulus and its pressure derivative are calculated.
Saadi Berri 2018, 'Ab initio study of fundamental properties of XAlO3 (X = Cs, Rb and K) compounds',Journal of Science: Advanced Materials and Deviceshttp://www.sciencedirect.com/science/article/pii/S2468217918300091. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The computed lattice constants and bulk modulus are well in accordance with the literature.
Selgin AL, Ahmet İYİGÖR 2018, 'A Theoretical Study of Structural, Electronic and Elastic Properties of the AntiperovskiteSnNCa3', Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisihttp://dergipark.org.tr/sdufenbed/issue/38975/456330?publisher=sdu-1. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Large values of bulk modulus for these compounds have been obtained, which demonstrates their hardness.
Moulay N., Ameri M., Azaz Y., Zenati A., Al-Douri Y., Ameri I. 2015, 'Predictive study of structural, electronic, magnetic and thermodynamic propertiesof XFeO3 (X = Ag, Zr and Ru) multiferroic materials in cubic perovskite structure:first-principles calculations', Materials Science-Polandhttp://www.degruyter.com/view/j/msp.2015.33.issue-2/msp-2015-0047/msp-2015-0047.xml?format=INT. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
In all these cases, the change in bulk modulus from cell volumes was accurately estimated.
Harikrishnan Parameswaran, Arnab Majumdar, Béla Suki 2011, 'Linking microscopic spatial patterns of tissue destruction in emphysema to macroscopicdecline in stiffness using a 3D computational model.', PLoS Computational Biologyhttp://europepmc.org/articles/PMC3080851?pdf=render. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The bulk modulus, refractive index, and dielectric constant were also investigated.
A. S. Ibraheam, Y. Al-Douri, Nabeel Z. Al-Hazeem, U. Hashim, Deo Prakash, K. D. Verma 2016, 'Effect of Cadmium Concentration on Structural, Optical, and Electrical Propertiesof Cu2Zn1−xCdxSnS4 Quinternary Alloy Nanofibres, Synthesized by Electrospinning Technique',Journal of Nanomaterialshttp://dx.doi.org/10.1155/2016/7314714. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
We computed the equilibrium lattices, bulk modulus and its pressure derivatives and equilibrium volume.
Labdelli Abbes, Hamdad Noura 2015, 'Perovskite oxides MRuO3 (M = Sr, Ca and Ba): Structural distortion, electronic andmagnetic properties with GGA and GGA-modified Becke–Johnson approaches', Results in Physicshttp://www.sciencedirect.com/science/article/pii/S2211379714000552. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
A small test rig was designed and constructed for determination of bulk modulus.
M Akhtar, Md Velden, SSA Al-Houqani 2013, 'Investigation of Pre- and Post-Swelling Behavior of Elastomeric Material', The Journal of Engineering Researchhttps://journals.squ.edu.om/index.php/tjer/article/view/124. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)