The document outlines the materials used in constructing the Titanic and analyzes the causes of its sinking. It notes that the Titanic was constructed using thousands of mild steel plates and over 2 million steel and wrought iron rivets. The failure of the wrought iron rivets in sealing the hull plates, along with design flaws of the watertight compartments, caused the ship to sink after colliding with an iceberg. Tests showed the wrought iron rivets were more brittle than steel rivets, and likely fractured on impact due to the low temperature of the water. Had it been constructed using modern steels, the Titanic may not have sunk as quickly.
various types of steel basically low carbon steels and alloy steels and how the alloying elements alter the various properties of steels , a detailed study & analysis
Iron – Carbon Diagram is also known as Iron – Carbon Phase Diagram or Iron – Carbon Equilibrium diagram or Iron – Iron Carbide diagram or Fe-Fe3C diagram
Recrystallization is the process in which deformed grains of the crystal structure are replaced by a new set of stress-free grains that nucleate and grow until all the original grains have been consumed. The process is accomplished by heating the material to temperatures above that of crystallization.
various types of steel basically low carbon steels and alloy steels and how the alloying elements alter the various properties of steels , a detailed study & analysis
Iron – Carbon Diagram is also known as Iron – Carbon Phase Diagram or Iron – Carbon Equilibrium diagram or Iron – Iron Carbide diagram or Fe-Fe3C diagram
Recrystallization is the process in which deformed grains of the crystal structure are replaced by a new set of stress-free grains that nucleate and grow until all the original grains have been consumed. The process is accomplished by heating the material to temperatures above that of crystallization.
The ship at sea or lying in still water is constantly being subjected to a wide variety of stresses and strains, which result from the action of forces from outside and within the ship.
A Presentation on the basic Structural members of a Ship Hull.Prepared for Training related activities.
Prepared by:Vipin Devaraj,
38Th RS,
Dept Of Ship Technology,
Cusat,INDIA
contact:vipindevaraj94@gmail.com
+919995568268
Done by Group : Professors
School Name : Alshahaniya Independent Secondry School for Boys.
Polymers Module : Through this module, students examine the different properties of the variety of polymers. Then they design and test a humidity sensor made of a polymer film. Finally, they are asked to design their own products.
the product Idea is : using Superabsorbent polymer to keep the armpit dry & prevent bad smell of sweating to appear.
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Presentación para la actividad de speaking de la asignatura de Inglés.
[Las anotaciones en las diapositivas 3, 25 y 31 y la imagen en la diapositiva 19 son en origen animaciones. La diapositiva 23 es un vídeo.]
CAUSES:
MATERIAL FAILURES
DESIGN FLAWS
MATERIAL FAILURES:
When the Titanic collided with the iceberg, the hull steel and the wrought iron rivets failed because of brittle fracture.
. The causes of brittle fracture include low temperature, high impact loading, and high sulphur content.
. On the night of the Titanic disaster, each of these three factors was present:
The water temperature was below freezing, the Titanic was travelling at a high speed on impact with the iceberg, and the hull steel contained high levels of sulphur.
Material Failure
High sulphur content increases the brittleness of steel by disrupting the grain structure .
The sulphur combines with magnesium in the steel to form stringers of magnesium sulphide, which act as "highways" for crack propagation.
Charpy test is used to measure the brittlness of a material.
A cigarette-sized coupon of steel taken from the Titanic wreck and a piece of modern high quality steel.
Design Flaws:
Although the compartments were called watertight, they were actually only watertight horizontally; their tops were open and the walls extended only a few feet above the waterline
. Some of the scientists studying the disaster have even concluded that the watertight compartments contributed to the disaster by keeping the flood waters in the bow of the ship.
Design failure:
If there had been no compartments at all, the incoming water would have spread out, and the Titanic would have remained horizontal.
Shortcuts to save time can sometimes prove very costly and neglecting a tiny item like a rivet can claim a bigger toll ...... as happened with the great Titanic ....
The Titanic tragedy is a poignant tale that intertwines ambition, engineering marvels, and human tragedy. The ship was a marvel of its time, considered unsinkable due to its innovative design and luxurious amenities. However, its fate serves as a reminder of the limitations of human ingenuity and the unpredictable forces of nature.
The Titanic was an engineering masterpiece, designed with cutting-edge technology for its era. Constructed by the Harland and Wolff shipyard in Belfast, Ireland, it was a feat of engineering boasting a length of about 882 feet and a width of 92.5 feet. The ship was divided into 16 compartments, supposedly watertight, a design that was believed to make it virtually unsinkable even if several compartments were breached.
Its hull was constructed using high-quality steel, a material believed to be strong and resilient. However, the steel used in the construction had a high sulfur content, making it more brittle in cold temperatures—a crucial factor contributing to the catastrophic iceberg collision.
The ship's opulence was unparalleled, with lavish interiors featuring intricate woodwork, plush furnishings, and state-of-the-art amenities for its passengers. Despite its grandeur, the Titanic was not equipped with enough lifeboats to accommodate all passengers and crew, a tragic oversight that exacerbated the loss of life when disaster struck.
On the fateful night of April 14, 1912, the Titanic, on its maiden voyage from Southampton to New York City, collided with an iceberg in the frigid North Atlantic waters. The impact caused severe damage, breaching multiple compartments and compromising the supposedly watertight design.
The fatal flaw became evident as the compartments filled with water, causing the ship to gradually sink. The inadequate number of lifeboats exacerbated the catastrophe, leading to the loss of over 1,500 lives out of the approximately 2,224 passengers and crew on board.
The Titanic tragedy remains a poignant reminder of the limitations of human hubris, despite advancements in technology and design. It serves as a crucial lesson in maritime safety, influencing subsequent regulations and practices to ensure the safety of passengers and crew on modern-day ships.
What Seven Cascade Events Led to the Titanic Sinking?Bob Mayer
15 April 1912, the unsinkable Titanic struck an iceberg, producing four holes in the hull combining to a size around the size of a dinner table. What led to the ship hitting the iceberg? Why did it sink? What can we learn from this disaster to prevent future catastrophes?
What Seven Cascade Events Led to the Titanic Sinking?Bob Mayer
15 April 1912, the unsinkable Titanic struck an iceberg, producing four holes in the hull combining to a size around the size of a dinner table. What led to the ship hitting the iceberg? Why did it sink? What can we learn from this disaster to prevent future catastrophes?
A GENERAL SEMANTICSANALYSIS OE THE RMSTITANIC DISASTERMA.docxsleeperharwell
A GENERAL SEMANTICS
ANALYSIS OE THE RMS
TITANIC DISASTER
MARTIN H . LEVINSON
...And as the smart ship grew
In stature, grace, and hue.
In shadowy silent distance
grew the Iceberg too.
From The Convergence of the Twain by Thomas Hardy
Introduction
RMS Titanic, the largest moving object of its time, began its maiden voyage
from Southampton, England, to New York City on Wednesday, April 10,
1912. On Sunday, April 14, the temperature of the Atlantic Ocean fell to
near freezing; the night was clear and calm. The ship's captain had received
various ice warnings from other vessels, some of which reached him while
others did not.
At 11:40 PM, while sailing about 400 miles south of the Grand Banks of
Newfoundland, lookouts spotted a large iceberg directly in the Titánicas path
The ship turned left to avoid the berg, but the massive chunk of ice openec
mortal holes on the vessel's starboard side. The captain ordered lifeboats
deployed and distress signals sent out.
Many of the lifeboats were launched at less than full capacity and a
woman-and-children-first policy was the rule for coming aboard. At 2:20 AM.
Martin H. Levinson, PhD, is the president of the Institute of General Semantics, vice presi-
dent of the New York Society for General Semantics, and a member of the Titanic Histori-
cal Society. He is the author of numerous articles and several books on general semantics
and other subjects. His latest book is Brooklyn Boorher: Growing Up in the Fifties (2011). He
can be contacted at [email protected]
143
144 ETC • APRIL 2012
the Titanic sank beneath the waves, a sinking that ended in the deaths of over
1,500 people and the start of a public fascination with a disaster filled with
hubris, heartbreak, and heroism. This article will examine many significant
aspects of that disaster through the formulations of general semantics.
/. The Map IsJVot the Territory
An Unsinkable Ship—Not Really
In 1912, the year it sank, the Titanic was known as the finest ship afloat. It
weighed over 46,000 tons, was as high as an 11-story building, and was
883-feet long from bow to stem (about a sixth of a mile). It had 29 boilers,
159 furnaces, and a maximum speed of 24 knots. The Titanic was consid-
ered so well constructed that many nautical experts thought the ship vir-
tually unsinkable.
The Titanic was reported to be watertight. It had a double bottom (the hull
was built with two coats of steel) and was divided into 16 watertight compart-
ments separated by bulkheads pierced by a series of doors that were controlled
either by automatic floating switches or by command from the bridge.
On the night of April 14, when the Titanic hit the iceberg, water begun
flooding into at least five of its "watertight compartments" that were any-
thing but watertight as the bulkhead walls did not rise appreciably .above
the waterline. Water coming over the bulkhead walls could cascade into
other compartments, which is what happened the night the Titanic went
under. (Th.
What Seven Cascade Events Led to the Titanic Sinking?Bob Mayer
15 April 1912, the unsinkable Titanic struck an iceberg, producing four holes in the hull combining to a size around the size of a dinner table. What led to the ship hitting the iceberg? Why did it sink? What can we learn from this disaster to prevent future catastrophes?
What Seven Cascade Events Led to the Titanic Sinking?Bob Mayer
15 April 1912, the unsinkable Titanic struck an iceberg, producing four holes in the hull combining to a size around the size of a dinner table. What led to the ship hitting the iceberg? Why did it sink? What can we learn from this disaster to prevent future catastrophes?
This is a ppt on tunneling safety for 2-4. There are lots of tunnels and the OSHA rules are 45 years old. These are the issues I would consider. I need to fine tune this later. John Newquist johnanewquist@gmail.com
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
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• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
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Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
3. INTRODUCTION
o Titanic was built between 1911 and 1912 and began its journey on
10 April 1912 .
o Two days later at mid night around 11.40 it struck an ice berg which
damaged the hulls of the six compartments ahead.
o These compartments got flooded which as a result caused the
sinking of the ship , but the actual failure that caused the ship to
sink was the material failure of the rivets being used in the sealing
of the hull plates.
o The ship sinked about in 2 hours and 40 minutes.
4. MATERIAL USED IN MANUFACTURE
Titanic was constructed of :-
“Thousands of one inch-thick mild steel plates”
“Two million steel and wrought iron rivets and equipped
with the latest technology”.
It was made up of low grade metals that were more brittle.
5. • Titanic's hull was triple riveted with using mild steel rivets,
and double riveted using wrought iron, in the central
length of the ship where maximum stress was assumed to
be located .
• Where as the use of wrought iron and mild steel rivets
instead of steel rivets caused the titanic disaster to take
place .
• The steel rivets have good strength as compared to
wrought iron.
• Titanic had experienced a great forcefull impact which
caused the six compartments of it to be opened to sea
where the used wrought iron rivets failed.
6. • When the Titanic collided with the iceberg, the
hull steel and the wrought iron rivets failed
because of brittle fracture.
• The causes of brittle fracture include low
temperature, high impact loading, and high
sulphur content. The water temperature was
below freezing, the Titanic was travelling at a
high speed on impact with the iceberg, and the
hull steel contained high levels of sulphur.
• The typical high-quality ship steels mainly used
are ductile an deform but never break like the
wrought iron.
THE FAILURE OF THE
HULLS
AND THE RIVETS.
7. • There was CHARPY IMPACT TEST
conducted on a specimen of the hull steel
of titanic to find out the brittleness of it.
• The wrought iron was found to be very
brittle as compared to the steel specimen .
8. • The wrought iron rivets that fastened the hull plates
to the Titanic's main structure also failed because of
brittle fracture from the high impact loading of the
collision with the iceberg and the low temperature
water on the night of the disaster.
• With the ship travelling at nearly 25 mph, the contact
with the iceberg was probably a series of impacts that
caused the rivets to fail either in shear or by
elongation.
• . Normally, the rivets would have deformed before
failing because of their ductility, but with water
temperatures below freezing, the rivets had become
extremely brittle.
9. DESIGN FLAWS….
• Along with the material failures, poor
design of the watertight compartments in
the Titanic's lower section was a factor in
the disaster.
• The lower section of the Titanic was
divided into sixteen major watertight
compartments, after the collision with the
iceberg, the hull portion of six of these
sixteen compartments was damaged.
10. • The watertight compartments contributed
to the disaster by keeping the flood waters
in the bow of the ship. If there had been
no compartments at all, the incoming
water would have spread out, and the
Titanic would have remained horizontal.
• Eventually, the ship would have sunk, but
she would have remained afloat for
another six hours before foundering.
16. TIMELINE OF THE SINKING OF THE
TITANIC [GANNON, 1995].
• 11:35 p.m. Lookouts spot the iceberg 1/4 mile
ahead.
• 11:40 The Titanic sideswipes the iceberg, damaging
nearly 300 feet of the hull.
• Midnight Watertight compartments are filling; water
begins to spill over the tops of the transverse
bulkheads.
• 1:20 a.m. The bow pitches; water floods through
anchor-chain holes.
• 2:00 The bow continues to submerge; propellers
lift out of the water.
17. • 2:10 The Titanic tilts 45 degrees or more;
the upper structure steel disintegrates.
• 2:12 The stern raises up out of the water;
the bow, filling with water, grows heavier.
• 2:18 Weighing 16,000 tons, the bow rips
loose; the stern rises to almost vertical.
• 2:20 The stern slips beneath the surface.
• 2:29 Coasting at about 13 mph, the bow
strikes the ocean floor.
• 2:56 Falling at about 4 mph, the stern strikes
the ocean floor.
18. COMPOSITION OF
MATERIALS
Table I. The Composition of Steels from the Titanic, a Lock Gate, and ASTM A36 Steel
C Mn P S Si Cu O N MnS: Ratio
Titanic Hull Plate 0.21 0.47 0.045 0.069 0.017 0.024 0.013 0.0035 6.8:1
Lock Gate* 0.25 0.52 0.01 0.03 0.02 — 0.018 0.0035 17.3:1
ASTM A36 0.20 0.55 0.012 0.037 0.007 0.01 0.079 0.0032 14.9:1
19. • NICKEL (Ni)
• As the properties of nickel say that when added
to steel increases its toughness even at low
temperatures .
• As nickel was missing in the materials being
used in the manufacturing of Titanic , due to low
temperature in the surroundings the materials
failed .
• And hence the use of Nickel would had made the
ship to float for longer period.
20. WAS TITANIC'S STEEL TO BLAME FOR
HER DEMISE?
• Many combining factors led to the magnitude of
Titanic's disaster at sea, including lack of lifeboats,
flaws in the design of the ship and negligence of
the crew.
• One factor that we can accurately evaluate with
today’s technology is the quality of steel that was
used for the Titanic, and if any shortcuts were taken
during construction that may have contributed to
the disastrous event.
21. • All three million of Titanic's rivets were driven
by hand.
• Wrought iron is an Iron Alloy with a very
low carbon (0.1 to 0.25%) content in
contrast to cast iron (2.1% to 4%), and has
fibrous inclusions, known as slag up to
2% by weight.
22.
23. • If it would had been 2012 instead of 1912 about a
Century after, then the failure of material wouldn’t
had took place with the use of Modern steels.
• Even the techniques of riveting the hull plates would
had been replaced by new techniques of Welding .
• The materials being used would also had been
replaced by new composite materials , which would
had satisfy the properties required.
If it would had been 2012
instead of
1912
24. CONCLUSION…..
• The steel used in constructing the Titanic was
probably the best plain carbon ship plate
available in the period of 1909 to 1911, but it
would not be acceptable at the present time for
any construction purposes and particularly not
for ship construction.
• Whether a ship constructed of modern steel
would have suffered as much damage as
the Titanic .