Spil Structural Analysis Tool

Submitted By ALEXANDERLIU
Words: 807
Pages: 4
Open Document
•
•
•

•

•

•

•

Simulation
Tool

Structural
Analysis Tool

Structural
Design Tool

• Response of a structure or system to the loads imposed

• Measuring critical loads or failure criteria • Modifying the structure to improve performance

•

•

Calculated circumference 2Πr

Number of Edges

•
•
•
•
•
•

Node
Element
Mesh
Load
Boundary Condition
Material Property
TrueGrid®

• Compatibility
• Equilibrium
• Constitutive Law

• Things fit together with no gaps
• Each node and element boundary matches the one beside it.

•
F2

Fk

F1

Fn

•
•

  E

P

A

P

P

A

A

P

Pn

A

Pn lim A 0 A

Ps

A

Ps lim A 0 A

Megson

Normal components

Shear components

τxy

Megson

Perpendicular to this axis

x,

y,

z

xy ,

yx ,

yz ,

zy ,

zx , xz

xy

yx

yz

zy

zx

xz

Parallel to this axis •
•
–
–

•

x

xy

xz

yx

y

yz

zx

zy

z

•
Sigma

x

Epsilon

y
Tau

Careful with the shear terms, different sources use different order

z

x y σ

Gamma

z

yz

yz

zx

zx

xy

xy

ε

  E

σ   E  ε

 1

 
 x 
1 
 

 y
 
 z 
E (1  ) 1 

 

(1


)(1

2

)
 0
 yz 

 zx 

 
 xy 
 0


 0






1 

1 

0

0

1 

0

0

1 

1

0

0

0

0

(1  2 )
2(1  )

0

1





0

0

0

(1  2 )
2(1  )

0

0

0

0




0  
 x 
  
0  y 
   z 
 
0   yz 
  zx 
 
0   xy 

(1  2 ) 

2(1  ) 
0

Continuum
(Displacement only)
• Bar
(u)

1D

2D

• Truss
(u,v,w)
• Plane stress (u,v)
• Plane
Strain
(u,v)
• Bricks
(u,v,w)

3D

Structural
(Displacement and Slope)
• Beam
(u,v,w,
θx,θy,θz)

• Plate
(u,v,w,
θx,θy)
• Shell
(u,v,w,
θx,θy,θz)

•

•
•
•
•
•
•
•

–

•
•
•

–

Model of Structure

Different Model of Structure

Discretised Model

Discretised Model

Magnitude of Errors

Real Structure

Remember:
Refinement does not make your closer to REALITY.
Refinement makes your results closer to your MODEL!

(a) Von mises stress

(b) Fore-aft load paths showing detail around mast step

E, A, L

P1

P2

u1

u2

 k11
k
 21

k12   u1   P1 
  

k22  u2   P2 

Node 1

Node 2

P1

P2

N u1=0 N u2=1 • What if we have multiple elements or loads? I

II

III

• We can assemble multiple elements using equilibrium at the nodes (+ compatibility)
P1

P2
P1 I

I

P2I

P3
P2II

II

P3II

P4
P3III

III

P4III

– At Node 1:
 P1 I  P1  0
 AI EI
AI EI  u1  u2   P1

LI
 LI


– At Node 2:
 P2I  P2II  P2  0
 AI EI
 AI EI AII EII u1  

 
LII
 LI
 LI


AII EII  u3   P2
 u2 
LII



Garth Pearce 2012

– In matrix form
 AI EI
 L
I

 AI EI
 L
I


 0


 0


AI EI

LI
AI EI
A E
 II II
LI
LII


AII EII
LII



0

AII EII
LII

AII EII
A E
 III III
LII
LIII


0

I

u1




  u1   P1 
0
 u   P 
 2
2

  

u
P
A E
 III III   3   3 
LIII  
u4 
 
Show More

Related Documents: Spil Structural Analysis Tool

1 S2 Essay

animal races, plant varieties and hybrids, as well as improved microorganisms such as yeasts. After the introduction of recombinant DNA techniques, the transfer of DNA between species belonging to different genera, families or kingdoms became possible. The release of transgenic plants has aroused debates about several aspects of the environmental and human risks that could result from the introduction of genetically modified crops. Less effort has been dedicated to evaluate the impact of transgenic plants…

Words 6244 - Pages 25

Essay on DIL Corporate Profile Aug 2013

Dabur India Limited C Corporate P Profile fil August ugust 2013 0 3 Agenda Dabur India-Introduction FMCG Industry Scenario Business Overview Strategy Overview Recent Performance 2 Introduction  Established in 1884 ‐ more than 128 Years of Trust & Excellence  World’s largest in Ayurveda and natural healthcare  Sales of Rs. 61.5 billion and profits of l f b ll d f f Rs. 7.6 billion in FY2012‐13 Dabur ranked amongst the Top 5 Indian companies with the best Board of Directors Dabur…

Words 2153 - Pages 9

Highly Resonant Wireless Power Transfer: Safe, Efficient, And Over Distance

Wireless Power Transfer: WiTricity Safe, Efficient, and over Distance Dr. Morris Kesler WiTricity Corporation ©WiTricity Corporation, 2013 WiTricity Highly Resonant Wireless Power Transfer: Safe, Efficient, and over Distance Introduction Driving home from the airport, Marin noticed his new smart phone was low on battery once again. Its HD display, and apps using GPS, Bluetooth, and LTE/4G data communications conspired to drain the battery quickly. Without looking, he dropped…

Words 7561 - Pages 31

Traffic Safety

Every day millions of people use different means of transport, whose number has been increasing exponentially as well as their performances along last decades due to technological developments. This fact has risen the accident rate and made transport safety of capital importance. For this reason, in the last years, considerable investments have been carried out by companies, governments and associations in educational advertising campaigns and researches to design safer vehicles and infrastructures…

Words 1381 - Pages 6

3114 14850 1 PB Essay

external pressure, axial load and torsion. Several application examples are presented. Copyright © 2010 Asociación Argentina de Mecánica Computacional http://www.amcaonline.org.ar 1762 1 R. SILVA, I. ROCHA, E. PARENTE JR., A. MELO, A. HOLANDA INTRODUCTION Fiber Reinforced Composites (FRC) research and use have been rising in the recent years, due to its high specific stiffness and specific strength. Also, it features good corrosion resistance, thermal insulation, good damping performance and long…

Words 8374 - Pages 34

The Effect of Derivatives Usage on Firm Value and Performance Essay

The Effect of Derivatives Usage on Firm Value and Performance: The Study on Malaysian Publicly Listed Firms Between 2008 and 2012 An undergraduate thesis proposal Presented to the Accountancy Department De La Salle University 2401 Taft Avenue, Manila, Philippines in partial completion of the course requirements of Bachelor of Science in Accountancy Camposagrado, Raphael Luis C. de Vera, Jan Neil P. Garcia, Carlos Oliver G. De La Salle University August 2013 Table of Contents…

Words 12992 - Pages 52

iPhone Reserach Paper

Japan The authors are grateful to invaluable comments fro m Masahiro Kawai, Takashi Kihara, Mario Lamberte, John West, Doo Yong Yang and other participants at the ADBI seminar. GRIPS Policy Research Center Discussion Paper: 10-21 2 1. Introduction At the center of global imbalances is the bilateral trade imbalance between the People’s Republic of China (PRC) and the United Sta tes (US). Most attention to date has been focused on macro factors, such as low savi ngs in the US, insufficient…

Words 1632 - Pages 7

Essay about T Mall Campaign Plan

T-mall’s Campaign Plan Chiwei Wu Fangbing Lu Guanhua Li Ke Xu Wu Di Yue Wan MBA 529 Instructor: Gregg Arnold T-mall Introduction T-mall.com is a business to customer market place which is owned by Alibaba Group. At the begging, it was introduced via Taobao as “Taobao Mall” in 2008. While T-mall became an independent company after Alibaba reorganized Taobao into three companies in 2011, including Taobao Mall (a C2C online shopping platform), eTao (an online price comparison search tool)…

Words 3039 - Pages 13

Bacteria and Squash Bug Essay

Antimicrobial Qualities of the Midgut and Haemolymph of Anasa Tristis to Different Symbiotic and Pathogenic Bacteria 499 Progress Report after 1 Semester Fall 2013 This report follows the format of Proceedings of the Royal Society of London B Introduction: Many insect species harbor endosymbiotic bacteria within their tissues, organs, and organ systems that offer benefits such as nutrients, protection from pathogens or parasites, and other adaptive qualities for the host, while other bacterial…

Words 2506 - Pages 11

Butts: Gender and Acts Essay

Philosophers rarely think about acting in the theatrical sense, but they do have a discourse of 'acts' that maintains associative semantic meanings with theories of performance and acting. For example, John Searle's 'speech acts,' those verbal as- surances and promises which seem not only to refer to a speaking relationship, but to constitute a moral bond between speakers, illustrate one of the illocutionary ges- tures that constitutes the stage of the analytic philosophy of language. Further…

Words 6873 - Pages 28