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jmartfrut merged 3 commits into from
Nov 3, 2025
Merged

Adds HGO_1Fiber model and tests #47

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0bee3d2
Adds HGO_1Fiber model and tests
jmartfrut Nov 3, 2025
37a6b19
Renames tests for clarity.
jmartfrut Nov 3, 2025
36bdb82
Removes unnecessary import
jmartfrut Nov 3, 2025
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1 change: 0 additions & 1 deletion README.md
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Expand Up @@ -39,7 +39,6 @@ Example of a Monolithic implementation for the simulation of Nonlinear ElectroMe

```julia
using HyperFEM
using HyperFEM: jacobian, solve!
using Gridap, GridapGmsh, GridapSolvers, DrWatson
using GridapSolvers.NonlinearSolvers
using Gridap.FESpaces
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1 change: 1 addition & 0 deletions src/Exports.jl
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Expand Up @@ -65,6 +65,7 @@ end
@publish PhysicalModels ViscousIncompressible
@publish PhysicalModels GeneralizedMaxwell
@publish PhysicalModels HGO_4Fibers
@publish PhysicalModels HGO_1Fiber

@publish PhysicalModels Mechano
@publish PhysicalModels Thermo
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25 changes: 18 additions & 7 deletions src/PhysicalModels/ElectroMechanicalModels.jl
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@@ -1,17 +1,17 @@

struct ElectroMechModel{E<:Electro, M<:Mechano} <: ElectroMechano
struct ElectroMechModel{E<:Electro,M<:Mechano} <: ElectroMechano
electro::E
mechano::M

function ElectroMechModel(electro::E, mechano::M) where {E<:Electro, M<:Mechano}
function ElectroMechModel(electro::E, mechano::M) where {E<:Electro,M<:Mechano}
new{E,M}(electro, mechano)
end

function ElectroMechModel(; electro::E, mechano::M) where {E<:Electro, M<:Mechano}
function ElectroMechModel(; electro::E, mechano::M) where {E<:Electro,M<:Mechano}
new{E,M}(electro, mechano)
end

function (obj::ElectroMechModel)(Λ::Float64=1.0)
function (obj::ElectroMechModel{<:Electro,<:IsoElastic})(Λ::Float64=1.0)
Ψm, ∂Ψm_u, ∂Ψm_uu = obj.mechano(Λ)
Ψem, ∂Ψem_u, ∂Ψem_φ, ∂Ψem_uu, ∂Ψem_φu, ∂Ψem_φφ = _getCoupling(obj.electro, obj.mechano, Λ)
Ψ(F, E) = Ψm(F) + Ψem(F, E)
Expand All @@ -22,7 +22,17 @@ struct ElectroMechModel{E<:Electro, M<:Mechano} <: ElectroMechano
∂Ψφφ(F, E) = ∂Ψem_φφ(F, E)
return (Ψ, ∂Ψu, ∂Ψφ, ∂Ψuu, ∂Ψφu, ∂Ψφφ)
end

function (obj::ElectroMechModel{<:Electro,<:AnisoElastic})(Λ::Float64=1.0)
Ψm, ∂Ψm_u, ∂Ψm_uu = obj.mechano(Λ)
Ψem, ∂Ψem_u, ∂Ψem_φ, ∂Ψem_uu, ∂Ψem_φu, ∂Ψem_φφ = _getCoupling(obj.electro, obj.mechano, Λ)
Ψ(F, E, N) = Ψm(F, N) + Ψem(F, E)
∂Ψu(F, E, N) = ∂Ψm_u(F, N) + ∂Ψem_u(F, E)
∂Ψφ(F, E, N) = ∂Ψem_φ(F, E)
∂Ψuu(F, E, N) = ∂Ψm_uu(F, N) + ∂Ψem_uu(F, E)
∂Ψφu(F, E, N) = ∂Ψem_φu(F, E)
∂Ψφφ(F, E, N) = ∂Ψem_φφ(F, E)
return (Ψ, ∂Ψu, ∂Ψφ, ∂Ψuu, ∂Ψφu, ∂Ψφφ)
end
function (obj::ElectroMechModel{<:Electro,<:ViscoElastic})(Λ::Float64=1.0; Δt)
Ψm, ∂Ψm_u, ∂Ψm_uu = obj.mechano(Λ, Δt=Δt)
Ψem, ∂Ψem_u, ∂Ψem_φ, ∂Ψem_uu, ∂Ψem_φu, ∂Ψem_φφ = _getCoupling(obj.electro, obj.mechano, Λ)
Expand All @@ -34,6 +44,7 @@ struct ElectroMechModel{E<:Electro, M<:Mechano} <: ElectroMechano
∂Ψφφ(F, Fn, E, A...) = ∂Ψem_φφ(F, E)
return (Ψ, ∂Ψu, ∂Ψφ, ∂Ψuu, ∂Ψφu, ∂Ψφφ)
end

end

ViscoElectricModel = ElectroMechModel{<:Electro,<:ViscoElastic}
Expand Down Expand Up @@ -92,12 +103,12 @@ struct FlexoElectroModel{EM<:ElectroMechano} <: FlexoElectro
electromechano::EM
κ::Float64

function FlexoElectroModel(electro::E, mechano::M; κ=1.0) where {E <: Electro, M <: Mechano}
function FlexoElectroModel(electro::E, mechano::M; κ=1.0) where {E<:Electro,M<:Mechano}
physmodel = ElectroMechModel(electro, mechano)
new{ElectroMechModel{E,M}}(physmodel, κ)
end

function FlexoElectroModel(; electro::E, mechano::M, κ=1.0) where {E <: Electro, M <: Mechano}
function FlexoElectroModel(; electro::E, mechano::M, κ=1.0) where {E<:Electro,M<:Mechano}
physmodel = ElectroMechModel(electro, mechano)
new{ElectroMechModel{E,M}}(physmodel, κ)
end
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30 changes: 30 additions & 0 deletions src/PhysicalModels/MechanicalModels.jl
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Expand Up @@ -757,6 +757,36 @@ end



struct HGO_1Fiber <: AnisoElastic
c1::Float64
c2::Float64
Kinematic::Kinematics{Mechano}
function HGO_1Fiber(; c1::Float64, c2::Float64, Kinematic::KinematicModel=Kinematics(Mechano))
new(c1, c2, Kinematic)
end

function (obj::HGO_1Fiber)(Λ::Float64=1.0; Threshold=0.01)
c1, c2 = obj.c1, obj.c2

Ψ(F, N1) = begin
M1 = N1 / norm(N1)
c1 / (4 * c2) * (exp(c2 * ((F * M1) ⋅ (F * M1) - 1.0)^2.0) - 1.0)
end

∂Ψ∂F(F, N1) = begin
M1 = N1 / norm(N1)
c1 * exp(c2 * ((F * M1) ⋅ (F * M1) - 1.0)^2.0) * ((F * M1) ⋅ (F * M1) - 1.0) * ((F * M1) ⊗ M1)
end

∂Ψ2∂F∂F(F, N1) = begin
M1 = N1 / norm(N1)
c1 * exp(c2 * ((F * M1) ⋅ (F * M1) - 1.0)^2.0) * ((4 * c2 * (((F * M1) ⋅ (F * M1) - 1.0)^2.0) + 2.0) * (((F * M1) ⊗ M1) ⊗ ((F * M1) ⊗ M1)) + ((F * M1) ⋅ (F * M1) - 1.0) * (I3 ⊗₁₃²⁴ (M1 ⊗ M1)))
end

return (Ψ, ∂Ψ∂F, ∂Ψ2∂F∂F)
end
end


struct IncompressibleNeoHookean3D{A} <: IsoElastic
λ::Float64
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1 change: 1 addition & 0 deletions src/PhysicalModels/PhysicalModels.jl
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Expand Up @@ -55,6 +55,7 @@ export MagnetoMechModel
export GeneralizedMaxwell
export ViscousIncompressible
export HGO_4Fibers
export HGO_1Fiber

export PhysicalModel
export Mechano
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32 changes: 32 additions & 0 deletions test/TestConstitutiveModels/ElectroMechanicalTests.jl
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Expand Up @@ -7,6 +7,38 @@ const ∇u = TensorValue(1.0:9.0...) * 1e-3
const ∇un = TensorValue(1.0:9.0...) * 5e-4


@testset "Electro+4*HGO_1Fiber" begin
c1 = [0.6639232500447778, 0.5532987701062146, 0.9912576142028674, 0.4951942011240962]
c2 = [0.800583033264982, 0.3141082734275339, 0.8063905248474006, 0.5850486948450955]
M1 = [ 0.36799630150742724, 0.8353476258002335, 0.57704047269419]
M1 = VectorValue(M1/norm(M1))
M2 = [ 0.3857610953527303, 0.024655018338846868, 0.6133770006613235]
M2 = VectorValue(M2/norm(M2))
M3 = [ 0.4516424464747618, 0.6609741557924332, 0.8441070681368911]
M3 = VectorValue(M3/norm(M3))
M4 = [0.7650638541897623, 0.8268625401770648, 0.3103412304991431]
M4 = VectorValue(M4/norm(M4))

model1 = HGO_1Fiber(c1=c1[1], c2=c2[1])
model2 = HGO_1Fiber(c1=c1[2], c2=c2[2])
model3 = HGO_1Fiber(c1=c1[3], c2=c2[3])
model4 = HGO_1Fiber(c1=c1[4], c2=c2[4])
modelMR = MooneyRivlin3D(λ=3.0, μ1=1.0, μ2=2.0)
modelID = IdealDielectric(ε=4.0)
modelelectro=modelMR+[model1 model2 model3 model4]+modelID


Ψ, ∂Ψ∂F, ∂Ψ∂F∂F = modelelectro()

F, _, _ = get_Kinematics(model1.Kinematic)
E = get_Kinematics(modelID.Kinematic)
@test Ψ(F(∇u),E(∇φ) ,(M1,M2,M3,M4)) == -27.513663654827152
@test isapprox(norm(∂Ψ∂F(F(∇u),E(∇φ) ,(M1,M2,M3,M4))) , 47.45420724735932,rtol=1e-14)
@test isapprox(norm(∂Ψ∂F∂F(F(∇u),E(∇φ) ,(M1,M2,M3,M4))), 14.707913034885005,rtol=1e-14)
end



@testset "ElectroMechano" begin
modelMR = MooneyRivlin3D(λ=3.0, μ1=1.0, μ2=2.0)
modelID = IdealDielectric(ε=4.0)
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34 changes: 33 additions & 1 deletion test/TestConstitutiveModels/PhysicalModelTests.jl
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Expand Up @@ -39,6 +39,38 @@ function test_derivatives_3D_(model::PhysicalModel; rtol=1e-14, kwargs...)
end




@testset "composition of HGO_1Fiber" begin
c1 = [0.6639232500447778, 0.5532987701062146, 0.9912576142028674, 0.4951942011240962]
c2 = [0.800583033264982, 0.3141082734275339, 0.8063905248474006, 0.5850486948450955]
M1 = [ 0.36799630150742724, 0.8353476258002335, 0.57704047269419]
M1 = VectorValue(M1/norm(M1))
M2 = [ 0.3857610953527303, 0.024655018338846868, 0.6133770006613235]
M2 = VectorValue(M2/norm(M2))
M3 = [ 0.4516424464747618, 0.6609741557924332, 0.8441070681368911]
M3 = VectorValue(M3/norm(M3))
M4 = [0.7650638541897623, 0.8268625401770648, 0.3103412304991431]
M4 = VectorValue(M4/norm(M4))

model1 = HGO_1Fiber(c1=c1[1], c2=c2[1])
model2 = HGO_1Fiber(c1=c1[2], c2=c2[2])
model3 = HGO_1Fiber(c1=c1[3], c2=c2[3])
model4 = HGO_1Fiber(c1=c1[4], c2=c2[4])

model=[model1 model2 model3 model4]

Ψ, ∂Ψ∂F, ∂Ψ∂F∂F = model()
∂Ψ∂F_(F,M1,M2,M3,M4) = TensorValue(ForwardDiff.gradient(F -> Ψ(F,(get_array(M1),get_array(M2),get_array(M3),get_array(M4))), get_array(F)))
∂Ψ∂F∂F_(F,M1,M2,M3,M4) = TensorValue(ForwardDiff.hessian(F -> Ψ(F,(get_array(M1),get_array(M2),get_array(M3),get_array(M4))), get_array(F)))


F, _, _ = get_Kinematics(model1.Kinematic)
@test Ψ(F(∇u3), (M1,M2,M3,M4)) == 0.0005561006012767033
@test isapprox(norm(∂Ψ∂F(F(∇u3), (M1,M2,M3,M4))) , norm(∂Ψ∂F_(F(∇u3), M1,M2,M3,M4)),rtol=1e-14)
@test isapprox(norm(∂Ψ∂F∂F(F(∇u3), (M1,M2,M3,M4))), norm(∂Ψ∂F∂F_(F(∇u3), M1,M2,M3,M4)),rtol=1e-14)
end

@testset "HGO_4Fibers" begin
c1 = [0.6639232500447778, 0.5532987701062146, 0.9912576142028674, 0.4951942011240962]
c2 = [0.800583033264982, 0.3141082734275339, 0.8063905248474006, 0.5850486948450955]
Expand All @@ -64,7 +96,7 @@ end
end


@testset "HGO_4Fibers+MooneyRivlin3D" begin
@testset "composition of HGO_4Fibers+MooneyRivlin3D" begin
c1 = [0.6639232500447778, 0.5532987701062146, 0.9912576142028674, 0.4951942011240962]
c2 = [0.800583033264982, 0.3141082734275339, 0.8063905248474006, 0.5850486948450955]
M1 = [ 0.36799630150742724, 0.8353476258002335, 0.57704047269419]
Expand Down