Roark’s Formulas for Excel™

Long considered the most popular engineering handbook, Roark’s Formulas for Stress

and Strain has been helping engineers solve design problems for more than 60 years.

Universal Technical Systems, Inc. (UTS) takes it one step further with Roark’s Formulas for

Excel, a fully interactive version of the landmark reference combined with powerful

problem solving technology that dramatically reduces design hours, production costs,

and speeds time to market. Imagine not just words and formulas on a page, but

completely automated stress analysis of a comprehensive range of structural

components—right on your desktop! Since its first publication, Roark is in constant use

by mechanical, aerospace, civil, and many other types of practicing engineers.

THEUltimateREFERENCE

“This product isAWESOME!Both the idea of implementingRoark in Excel as well as how

UTS has done it are brilliant. No engineershould be without it.”

Dr. Tom Mincer—Well–known pioneer and educator

in the application of Excel/VBAin the field of Engineering

Roark’s Formulas for Excel™

Roark’s Formulas for Stress and Strain has been thoroughly

user–tested and in continuous use since 1938. Roark's

Formulas for Excel takes every table and case from the

7th edition and makes it interactive, includes calculations for all

cases and tables with accompanying diagrams to help

streamline the design process and reduce design iterations, as

well as the need for complicated finite element analysis.

In addition, International System of Units (SI) and United States

Customary Units (USCU) conversion is automatic with Roark’s

Formulas for Excel, making work sharing among engineers

easier than ever.The user–friendly menu system lets you select

a problem by chapter, table, and case—exactly as it is in the

book. However, here is where the similarities end.

Pre–formatted plots of deflection, stress, and bending

moments let you refine the design like never before. What’s

more, a powerful math engine, with the unique ability to solve

for a variety of combinations of input and output variables

(known as backsolving), allows you to easily test “what–if”

scenarios and optimize designs without hours of tedious

calculations or programming. Just point, click, and solve.

Proven and powerful

Pre–formatted plots of deflection,stress, and bending moments let you

refine the design like never before.

The user–friendly menu system lets you select a problem by chapter, table, and case—exactly as it is in the book. Accompanying diagrams help streamline the design process and reduce design iterations.

Bottom Line: Roark’s Formulas for Excel gives you the ability to tackle designchallenges that would otherwise be too complicated or costly to attempt.

www.techstreet.com

Case 1: Deflection.0005

-.0005

-.001-.0015

-.002

-.0025-.003

-.0035

0

Radial Location [in]

0 .5 1 1.5 2 2.5 3

Def

lect

ion

in

Case 1: Slope Angle

.002

.0015

.001

.0005

0

Radial Location [in]

0 .5 1 1.5 2 2.5 3

Slo

pe A

ngle

rad

MomentConcentrated Intermediate Load0

-10000

-20000

-30000

-40000

Distance from Left End [in]

0 10 20 30 40 50 60 70 80

Mom

ent l

bf-in

r

w

o

Outer edge fixed, inner edge guided

Roark’s Formulas for Excel™

“UTS looks like they have anotherwinner on their hands. First theymerged one of the most popularengineering references with TK Solver’s backsolving capabilityto create Interactive Roark’sFormulas for TK Solver. It is anapplication that simplifies anengineer’s life immensely. I can’t

count the hours it has saved me from re–creatingspreadsheets from a textbook. Now, UTS has done itagain. They’ve taken the same powerful application andwrapped it in arguably the most widely used engineer'stool… amazing. UTS continues to be the best kept secretin the engineering software world.”

Wayne Pilgrim—Weatherford Incorporated

Roark’s Formulas for Excel at a Glance

Roark’s Formulas for Excel includes a Superposition Data Entry

Wizard, handling multiple load calculations on beams and

plates with ease, creating plots of stress, deflection, and shear

for the combined loads,every step of the way.What used to take

hours now takes a matter of minutes!

• Interactive Calculations—for all cases and tables

• Dynamic Plot Annotations—for data analysis and

visualization

• Full Materials Database—for streamlined data entry

• Automatic Unit Conversion—for model sharing flexibility

• Report Wizard—for on–demand custom reporting

• Superposition Wizard—solves multiple loads on beams

and plates

Annular plates

Supported, FixedSupported Condition:

Beam Type:

Load:

Outer Radious:

Inner Radious:

PlateThickness:

Uniform annular line load:

Radious to annular line load:

2

1

40

50

80

in

in

Reset All Close Show Combined Report...Solve for Load ConditionLoad Number:

r y th Mr Mt Q sigma_r

-1022.36614-1019.8166-1017.27975

2358.557262349.492332340.17318

9825.429269704.815729584.77939

-0.00061-0.00056-0.00052

-0.00865-0.00871-0.00876

4040.140.2

14738.114557.214377.1

in

lbf/in

in5

Results for current load conditionResults for current load condition

Table 11.2, Case 1 [1d Supported, Fixed]Table 11.2, Case 1 [1d Supported, Fixed]

Uniform annular line loadUniform annular line load

Steel - A.S.T.M. A7-61TSteel - A.S.T.M. A7-61T

nu:nu: 0.270.27 2900000029000000E:E:

Outer edge simply supported, inner edge fixed

psi

Full Customizable Materials Database

Superposition Wizard

Report Wizard and Sample Report

Image_1_1044 =EMBED("Forms.

Arial 10

Type a question for help

Sheet2Sheet1

Ready NUM

Sheet3

123456789101112

3132

131415161718192021222324252627282930

A B C J

Chapter Eleven: Flat Plates TABLES 11.12. Annular plate with a uniformly distributedCase: 2d Supported, Fixed

Roark's Formulas for Excel

Input Value Unit

Output Value Unit

matnumr0

r

q

abt

in

in

inin

in

200 psi1

1

17

30.5

0.25

matlE

nu

caution 1

"Steel - A. S. T. M. A7-61T "

29000000 psi0.27

'_'_caution 2

Material name

Young's ModulusPoisson's ratio

Thickness Check

Annular plates

Supported, FixedSupported Condition:

Beam Type:

Load:

Outer Radious:

Inner Radious:

PlateThickness:

Uniform annular line load:

Radious to annular line load:

2

1

40

50

80

in

in

Reset All Close Show Combined Report...Solve for Load ConditionLoad Number:

r y th Mr Mt Q sigma_r

-1022.36614-1019.8166-1017.27975

2358.557262349.492332340.17318

9825.429269704.815729584.77939

-0.00061-0.00056-0.00052

-0.00865-0.00871-0.00876

4040.140.2

14738.114557.214377.1

in

lbf/in

in5

Results for current load conditionResults for current load condition

Table 11.2, Case 1 [1d Supported, Fixed]Table 11.2, Case 1 [1d Supported, Fixed]

Uniform annular line loadUniform annular line load

Steel - A.S.T.M. A7-61TSteel - A.S.T.M. A7-61T

nu:nu: 0.270.27 2900000029000000E:E:

Outer edge simply supported, inner edge fixedOuter edge simply supported, inner edge fixed

psi

C:\Program Files\UTS\Roark's Formulas for Excel\TK

Roark's Formulas for Excel

Roark's Formulas for Excel

Company Logo

Report Header

Report Footer

Back Color

Inputs

Plots

Name Comment

Page break between inputs and outputs OK Cancel

section1 Section6 - Wide Flanged Beam

Outputs Font Arial

Fore Color

Roark's Formulas for Excel - Report Wizard

METALS

matlmatnum G E nu gamma

MaterialsMaterials

Aluminum - cast, pure

Young'sModulus

PoissonRatio

ThermalCoeff.

ShearModulus

3700000

35500004000000

3750000

7000000

5500000

6500000

6700000

6700000

6700000

6700000

.000013

.0000136

.0000128

.000013

.0000093

.0000118

.0000099

.000006

.000006

.000006

.000006

.36

.33

.33

.3

.355

.357

.35

.25

.25

.25

.25

9000000

950000010600000

1E7

19000000

15000000

15000000

14000000

15200000

18300000

19000000

Aluminum - cast, 220 T4

Aluminum - wrought, 2014 T6

Aluminum - wrought, 6061 T6

Beryllium copperBrass - naval

Bronz - Phosphor, A.S.T.M...

Cast iron, gray, no. 20

Cast iron, gray, no. 30

Cast iron, gray, no. 40Cast iron, gray, no. 60

1

2

3

4

56

7

8

9

1011

4

32

5

6

7

89

10

11

12

1314

Return to Spreadsheet Update Materials Table

Roark's Formulas for Excel - Tables

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Roark’s Formulas for Excel™

ALL TRADEMARKS ARE REGISTERED TO THEIR RESPECTIVE COMPANIES. UTSR12–2005revTechStr01–2006

Roark’s Formulas for Excel is available for Microsoft Excel 2000 and higher running on Microsoft® Windows 2000 and XP platforms.

Roark’s Formulas For Excel is developed by Universal Technical Systems, Inc.Universal Technical Systems, Inc., established in 1984, is the leading provider of high–productivity problem–solving software products and custom developedsolutions. With headquarters in Rockford, Illinois and subsidiaries in the UK and India, UTS serves customers worldwide. For over twenty years UTS has focusedexclusively on providing solutions that help companies in the scientific, engineering, operations research and management, and financial communities simplifycomplex calculations and streamline the processes that drive their businesses. UTS products and custom solutions are available for desktop and web use.

“As a TK Solver/Roark userof nearly two decades, I amvery impressed to see thatRoark’s Formulas is nowpresented as a robust ‘plugand play’ module withinExcel. Just select themodel(s) you want, selectthe parameters of interest,solve, and then click toproduce a well presentedreport that clearly andaccurately presents the data in a coherent andunderstandable form for your peers. If a picture paintsa thousand words, then Roark’s Formulas for Excelsolves a million Engineering problems. I look forwardto using it alongside my regular finite element stressanalysis software and actual mechanical testing as aconfidence booster to give accurate engineeringjudgement and results.”

Mike Hagland, Senior Materials Analyst—Gyrus Medical Limited

“A Designer’s Dream”The first software edition of Roark’s

Formulas, designed for TK Solver, was

released by UTS in 1989, and was quickly

received by consumers as a “design

engineer’s dream,” as described by

Professor Warren Young, the co–author of

Roark’s Formulas for Stress and Strain. Now

UTS is taking the next step by making their

popular software available to Excel users.

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