Multi-Analysis

Material Library

Information

This is a collection of materials and their relevant properties.
Several analyses allow for the selection of a material,
which will automatically populate relevant fields when selected.
Custom materials can be added to the library.

Please note that values assume the most conservative stock thickness,
severe deviations in thickness may result in inaccuracy.

Library

Material	E_c (Msi)	μ	F_tu (ksi)	F_ty (ksi)	F_cy (ksi)	F_su (ksi)	F_bru (ksi)	F_bry (ksi)
Aluminum 7075-T6	10.7	0.33	75	66	70	41	111	92
Aluminum 2024-T3	11	0.33	54	37	34	29	84	61
Aluminum 7050-T7451	10.7	0.33	64	53	56	37	90	75
Steel 15-5PH	29.2	0.27	154	143	146	96	257	211

Tension Clip

Input

Clip Type
t = in
c = in
Fcy = ksi
Point Spacing = in
Angle Width = in
Point Count = qty

Output

P =

Enter Values

lbs

Clip Types

Radius Packer

Input Geometry

C		in
e		in
r		in
t_w		in
t_f		in
t_p		in
W_p		in
D		in

Calculated Geometry

b		in
a		in
I₁		in⁴
I₂		in⁴

Material Properties

Fitting

Material

F_tu		ksi
F_ty		ksi
F_su		ksi
E		Msi

Packer

Material

F_tu		ksi
F_ty		ksi
F_su		ksi
E		Msi

Bolt

P_tu		lbs
P_su		lbs

Applied Load

P		lb

Flange Bending

P_allowable		lb
M_allowable		lb-in
M_flange		lb-in
MS

Packer Shear and Bending

M_b
f_b
F_bu
R₁
R₂
f_s
R_b
R_s
MS

Bolt Margin

Torque		lb-in
P_p		lb
P_torque		lb
P_{f pry}		lb
P_bolt		lb
MS

Frame STA Loads

Input

F_cy		ksi
t_{frame, web}		in
H_frame		in
Y_frame		in
E_frame		Msi
A_frame		in²
I_frame		in⁴
r		in
L		in
E_skin		Msi
t_skin		in
A_str		in²
I_str		in⁴
b_str		in
Buckling
a		in
b		in

Mouse over a value or field for more information

Output

Properties

θ_str =		deg
t_e =		in
t' =		in
i =		in³
A =
B =
L_c =		in
L_r =		in
γ =
L_r/L_c =

Load Application

Location =	1	2	3	4	5	6	7	8	9
P (lb) =
S (lb) =
M (in*lb) =
Φ (deg) =

Frame Stresses

Theta	Axial	Shear	Bending	f/a	MY/I	M(H-Y)/I	f2	f1	fs

Buckling Check

f₁ =		psi
f₂ =		psi
f₁/f₂ =
a =		in³
b =		in
k_b =
K_b =
E_t =		psi
E_s =		psi
ν =
η =
F_{bcr, el} =		psi
F_{bcr, pl} =		psi

k_s =
J =		psi
K_s =
F_scr =		psi

f_s =		psi
F_scr =		psi
f_b =		psi
F_{bcr, pl} =		psi
R_s =
R_b =
MS =

NACA Technical Note

Data

Material	μ	L	P	E (Msi)	Intercostal ending

Stringer	Radius (in)	t_skin (in)	A_str (in²)	Y_str (in)	I_str (in⁴)	Bay width (in)	b_ave (in)	A_frame (in²)	Frame Factor	Factored Afr (in²)	NACA Load

Diagrams

Output

s
I_seg		in⁴
YNA		in
Ratio

α
ρ
φ
β
θ
ψ
υ
% of 2 dp
V

y		in
u		in
v		in
w		in
w		lbs/in
p		psi
M_max		in·lbs
M_center		in·lbs

Hoop		psi
PR/t		psi
%_{pure hoop}

u_{no frame}		in
%_press
V_ST		lbs

Ellipse Analysis (BETA)

Inputs

Fx (lbs/in)
Fy (lbs/in)
Fxy (lbs/in)
Long r (in)
Short r (in)

Outputs

η (Deg)	η (Rad)	Fε	Fη	Fεη

Outstanding Flange Buckling

Input

	Assume Simply Supported (Rotational stiffness u_c is set to 0 and web rigidity is neglected)

Section	Material	Ec [Msi]	Fcy [ksi]	μ	nc	t [in]	b [in]	F₀ [ksi]	F_f [ksi]	t_web [in]	H_fr [in]	Lst/Pitch Ratio
1

Output

Section	F₀/F_f	K	Et [Msi]	Es [Msi]	η	μ_c [lb/in˙rad]	F_ofb [ksi]	MS
1	Enter Data	Enter Data	Enter Data	Enter Data	Enter Data	Enter Data	Enter Data	Enter Data

Flat Plate Buckling

Input

Edge Type
f_S		ksi
a		in
b		in
t		in
E_C		Msi
ν
f₁
f₂

Mouse over a value or field for more information

Diagrams

Output

Shear Buckling Alone

a/b =	Enter Data
K_S =	Enter Data
F_SCR =	Enter Data	ksi
MS =	Enter Data

Compression/Bending Buckling Alone

f₂/f₁ =	Enter Data
K_C =	Enter Data
F_CR =	Enter Data	ksi
MS =	Enter Data

Margin due to Combined Loading

f_S/F_SCR =	Enter Data
f₁/F_CR =	Enter Data
f₂/f₁ =	Enter Data
MS =	Enter Data

Data

Buckling Stress Coefficients for Flat Plates Loaded in Uniform Shear

Buckling Stress Coefficients for Flat Plates Under Bending, Compression or Tension

Initial Buckling of Flat Plates Under Compression, Bending and Shear

Inter Rivet Buckling

Section	Material	E_c (Msi)	F_cy (ksi)	nc	Pitch (in)	c	t_sheet (in)	E_t (Msi)	F_ir (ksi)

Web Diagonal Tension

Properties

Material

E

Msi

E_c

Msi

F_tu

ksi

F_cy

ksi

F_su

ksi

b

in

h

in

t

Stiffener	Web	Chord

in

v

P_shear

lbs

I_ch

in⁴

A_ch

in²

e_stiff

in

A_stiff

in²

I_stiff

in⁴

Buckling

K_SS
R_h
R_d
F_scr		ksi
f_s
k
alpha		degrees
F_{s all}		ksi

Data and Calculations

Section Properties - Inner Chord

Item	b (in)	t (in)	A (in²)	z (in)	Az (in³)	Az² (in⁴)	I_yo (in⁴)
1
2
3
		Totals:

z bar =		in
I_yy =		in⁴
A =		in²

Section Properties - Stringer Clip

Item	b (in)	t (in)	A (in²)	z (in)	Az (in³)	Az² (in⁴)	I_yo (in⁴)
1
2
3
		Totals:

z bar =		in
I_yy =		in⁴
A =		in²

min(dc, b) =	69420
max(dc, b) =
Bottom =

Kss =
Equation =

tu / t =
tf / t =
Rh =
Rd =

Kss =
E =
v =
b =
dc =
t =
Rh =
Rd =
Fscr/n =

Fscr =

fs/Fscr =
fs =
k =

Aue/bt =
2Af/Ht =

alpha =
tan(alpha) =
wb =

Fsall =
Fs_All =

Crippling

Input/Output

Material =

Fcy = Ec =

Flange	b	t	Edges	Area	Fcc	Fcc*A
1				Enter	Enter	Enter
2				Enter	Enter	Enter

Combined Allowable

Fcc =	Enter Data
Pcc =	Enter Data

Bending Crippling

Input/Output

Material =

Fcy = Ec =

Flange	Type	b	t	Edges	Ybar	Fcc	Yi	Mo
1						Enter	Enter	Enter
2						Enter	Enter	Enter

Maximum Allowable

Max Allowable Moment =

Enter Data