An Introduction to the different application of forensic sciences in the engineering field .

1. FORENSIC ENGINEERING
ABEER
2018
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2. CV
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3. LIST OF CONTENT
INTRO
TECHNOLOGY
CASE STUDY
FURTUER READINGS
OPEN SESSION
FORENSIC ENGINEERING
ENG/SKILLS
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8. ENGINEER RESPONSIBILITY / DUTY
• The General Public: Safety, Environment
• Direct Consumers Of The Project
• Fellow Engineers
• Clients E.G. Government, Industry
• Communication excellence
• Economics And Finance
• Law
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9. FORENSIC ENGINEERING
• Is the process of investigating distress or failure of a structure, that includes (but is
not limited to) the evaluation of problems caused by distresses that are a direct
result of factors that include moisture intrusion, inadequate material thicknesses or
poor material preparation/performance. Forensic investigation strives to diagnose
causes of the damage, distress or failure and to develop a plan for repairs.
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10. Product
Liabilit
yStructura
l Failure
Air/Mot
or/Rail
way
Acciden
ts/ships
Construc
tion
Projects
Professi
onal
Neglige
nce
Mechanic
al
Failures
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11. ENG SKILLS
Professional Photograph Investigation
Integrity Flexibility
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12. PAST METHODS
• The principal methods used in early forensic engineering included:
• The careful analysis of the service record of the component.
• The review of the loads carried.
• Record of temperatures suffered.
• Analysis of the microstructure of the material used.
• Assessment of witness evidence.
This was usually carried out by optical microscopy, X-ray diffraction
and chemical analysis.
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13. PRESENT METHODS
• Fracture Mechanics - the analysis of loads applied to bodies containing cracks
• Scanning Electron Microscopes - fracture surfaces can be analyzed at magnifications of thousands to determine
modes of failure
• Finite Element Analysis - the determination by numerical mathematics of stresses, temperatures at all positions
within a body,
• Computational Fluid Dynamics - this uses numerical mathematics to determine effects of fluids (gases or solids)
on components or structures
• Impact Dynamics - the use of numerical and analytical codes and models to determine the behavior of structures
when hit by fast-moving projectiles.
• Fracture Mechanics.
• Webinar CivilFEM2016.
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15. PARIS CHARLES DE Gulle AIRPORTN 2004
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17. REASONS FOR COLLAPSE
• The collapse of a 110 foot section killed four people, injured three others, and left a
50 by 30 meter hole in the tubular design.
• Process Failure: A lack of detailed analysis and inadequate design checking allowed
construction of a poorly engineered structure.
• Structural Engineering Failure:
A number of design flaws were not caught during construction, including (1) a lack
of redundant supports; (2) poorly placed reinforcing steel; (3) weak outer steel struts;
(4) weak concrete support beams; and (5) low resistance to temperature.
• After the INVESTIGATION and careful disassembling, the structure was rebuilt with
a metal framework built upon the existing foundation. It reopened in the spring of
2008.
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19. FURTHER READINGS
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20. THANKS FOR YOUR KIND
ATTENTION.
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