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Section 4-212 entries

4-21.1second axial moment of area 4-21.2second polar moment of area

4-21.1

second axial moment of area

URNurn:iso:std:iso:80000:-4:ed-2:en:item:4-21.1

https://metanorma.github.io/isq-smart/quantities/part-4/t4-21.1
urn:iso:std:iso:80000:-4:ed-2:en:item:4-21.1

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-4:ed-2:en:item:4-21.1

IEC

urn:iec:std:iec:80000-4:2019:::item:4-21.1

Designations

ENsecond axial moment of area

FRmoment quadratique axial d'une aire plane

Symbol

I_{a}

Notation systems

Rendered

I_{a}

AsciiMath

I_"a"

LaTeX

I_{\text{a}}

Definition

geometrical characteristic of a shape of a body equal to:

$I_{a} = & # 8748;_{M} r_{Q}^{2} d A$

where $M$ is the two-dimensional domain of the cross-section of a plane and considered body, $r_{Q}$ is radial distance (ISO 80000-3: Space and time) from a $Q$ -axis in the plane of the surface considered and $A$

is area (ISO 80000-3: Space and time)

caractéristique géométrique de la forme d'un corps, égale à :

$I_{a} = & # 8748;_{M} r_{Q}^{2} d A$

où $M$ est le domaine bidimensionnel formé par l'intersection d'un plan et du corps considéré, $r_{Q}$ est la distance radiale (ISO 80000-3: Space and time) par rapport à un axe $Q$ dans le plan de la surface considérée et $A$ est l'aire (ISO 80000-3: Space and time)

Units

m^{4}

quartic metre

View related quantities →

Notes

This quantity is often referred to wrongly as "moment of inertia" (moment of inertia).

The subscript, $a$ , may be omitted when there is no risk of confusion.

Cette grandeur est souvent désignée à tort en tant que « moment d'inertie » (moment of inertia).

L'indice, $a$ , peut être omis lorsqu'il n'y a aucun risque de confusion.

Referenced by

section modulus

Concept HierarchyPendrill (2024)

L⁴L⁴ quantitiesLevel 0 · Kind

Broader concepts

◇ L⁴ quantities

Ontology
isq:Quantity smart:TermEntry

Class Hierarchy

smart:Entity smart:TermEntryisq:Quantity

A physical quantity as defined in ISO/IEC 80000, with associated symbols, definitions, and units of measurement.

Instance IRI

isq:t4-21.1

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	4-21.1
skosxl:prefLabel	"second axial moment of area"@en
skosxl:altLabel	"I_"a""@en
skos:definition	geometrical characteristic of a shape of a body equal to: stem:[I_"a" = ∬_"M" r_"Q"^2 "d"A] where stem:["M"] is …
skos:note	This quantity is often referred to wrongly as "moment of inertia" (<<t4-7>>). The subscript, stem:["a"], may be omitted…
isq:hasUnit	m^4 (quartic metre)
isq:hasDimension	isq:Dimension
smart:hasBindingnessType	bindingness-type:normative
dcterms:isPartOf	isq:part-4

Related Entities

isq:QuantityShape isq:part-4 isq:Unit isq:Dimension isq:hasDimension smart:TermEntry