Composite · UD lamina, carbon · orthotropic

AS4/3501-6 carbon/epoxy

Name: AS4/3501-6 carbon/epoxy — material properties (Herakovich (1998))
Creator: BadgerMecX

Herakovich (1998) · V_f = 0.62

AS4/3501-6 carbon/epoxy is a unidirectional carbon-fibre lamina to Herakovich (1998). Along the fibres E₁ = 148 GPa; across them E₂ = 10.5 GPa.

Record: ud-as4-3501-6
Library: v1.1.0
Properties: 11
Sources: 1
Build check: passed ✓
Viewing as: guest

E₁ · Modulus, direction 1 148GPa typical^[1]

ν₁₂ · Poisson's ratio 1-2 0.3– typical^[1]

ρ · Density 1520kg/m³ typical^[1]

Elastic constants

orthotropic

Symbol	Property	Value	Unit	Basis	Ref.
E₁	Modulus, direction 1	148	GPa	typical	[1]
E₂	Modulus, direction 2	10.5	GPa	typical	[1]
E₃	Modulus, direction 3 ⓘ transverse isotropy: E₃ = E₂	10.5	GPa	derived	[1]
ν₁₂	Poisson's ratio 1-2 ⓘ the major Poisson's ratio (printed as ν₂₁ in the copy checked)	0.3	–	typical	[1]
ν₁₃	Poisson's ratio 1-3 ⓘ transverse isotropy: ν₁₃ = ν₁₂	0.3	–	derived	[1]
ν₂₃	Poisson's ratio 2-3	0.59	–	typical	[1]
G₁₂	Shear modulus 1-2	5.61	GPa	typical	[1]
G₁₃	Shear modulus 1-3 ⓘ transverse isotropy: G₁₃ = G₁₂	5.61	GPa	derived	[1]
G₂₃	Shear modulus 2-3	3.17	GPa	typical	[1]

Stiffness matrix C [GPa] · Voigt order 11, 22, 33, 23, 13, 12

152.8	7.93	7.93	0	0	0
7.93	16.52	9.915	0	0	0
7.93	9.915	16.52	0	0	0
0	0	0	3.17	0	0
0	0	0	0	5.61	0
0	0	0	0	0	5.61

C = S⁻¹ from the engineering constants above; checked positive definite when the library is built.

Physical, thermal and electrical

at 20 °C

Symbol	Property	Value	Unit	Basis	Ref.
ρ	Density	1520	kg/m³	typical	[1]
V_f	Fibre volume fraction	0.62	–	typical	[1]

Notes

Full 3D constants. The printed G₂₃ is not exactly E₂/(2(1 + ν₂₃)) = 3302 MPa, as strict transverse isotropy would require; the record keeps the printed value.

Sources

every value names one

C. T. Herakovich, Mechanics of Fibrous Composites (1998), p. 245 — as tabulated in Johnson, Aerospace Structures, Table 8.2Copies checked: 1

min product standard minimum char characteristic design code value for design typical datasheet or textbook derived worked out here, formula shown

Cite this page

for reports and papers

BadgerMecX Materials (2026). AS4/3501-6 carbon/epoxy — material properties, Herakovich (1998). Library v1.1.0, record ud-as4-3501-6. https://badgermecx.com/materials/ud-as4-3501-6/ (accessed 2026-10-08).

@misc{badgermecx_udas435016,
  title  = {AS4/3501-6 carbon/epoxy -- material properties, Herakovich (1998)},
  author = {{BadgerMecX Materials}},
  year   = {2026},
  note   = {Library v1.1.0, record ud-as4-3501-6},
  url    = {https://badgermecx.com/materials/ud-as4-3501-6/}
}

Export and related

SI units, every value with basis and source