Construct · 2 fields · 2 citations

Where does bulk collide?

One name. Different field. Different construct. One map.

● jingle · one word, two constructs Nearest construct by meaning·not indexed
bulk2 CONSTRUCTSBulk densityHILLEL · BULK DENSITYBulk modulusGERE · BULK MODULUS

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2004Bulk density2013Bulk modulus
2026

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Soil physics

Dry mass packed into a unit of soil volume

In soil physics, bulk density is the dry mass of soil divided by the total volume it occupies (solids plus pore space), so it rises with compaction and falls as porosity opens up, making it a basic index of soil structure and root-restricting compaction. Hillel's Introduction to environmental soil physics develops it alongside porosity and particle density. The referent is a mass-per-bulk-volume property of a porous medium, measured in grams per cubic centimetre, unrelated to a transistor's body region or a material's resistance to compression beyond the shared word.[1]

Unit
Dry mass per total (bulk) volume of the porous medium
Recovery means
Not applicable
Measured by
Determined by core, clod, or excavation methods relating oven-dry mass to the total sampled volume

Mechanics of materials

Resistance to uniform compression

In mechanics, the bulk modulus is a material's resistance to uniform (volumetric) compression: the ratio of an applied hydrostatic pressure to the fractional decrease in volume it produces, so a high bulk modulus means the material barely compresses under all-around pressure. Gere and Goodno's Mechanics of materials defines it alongside the other elastic constants. The referent is an elastic stiffness against volume change, measured in units of pressure, the same word as a soil's packing density or a transistor's body region, but a wholly different construct.[2]

Unit
The ratio of hydrostatic pressure to fractional volume change (units of pressure)
Recovery means
Not applicable
Measured by
Obtained from volumetric compression tests or from elastic-wave speeds and the other measured elastic constants

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Nearby collisions

porosity3 fields · 3 citationsinvariant · one construct, three systemssurface3 fields · 3 citationsjingle · one word, three constructsadvection3 fields · 3 citationsinvariant · one construct, three systems

References

  1. Hillel, D. (2004). Introduction to environmental soil physics. Elsevier/Academic Press. ISBN 9780123486554
  2. Gere, J. M., & Goodno, B. J. (2013). Mechanics of materials (8th ed.). Cengage Learning. ISBN 9781111577735

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