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vikram.jeet
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PostPosted: Tue Oct 05, 2021 3:21 am    Post subject: Reply with quote

HENRY  PHILIBERT GASPARD  DARCY ( 1803 - 1858 )

Born in Dijon France ,  Henry Darcy was a renowned French engineer  having several important contributions to HYDRAULICS  INCLUDING  FAMOUS. DARCY LAW  FOR FLOW THROUGH POROUS MEDIA.

His father died when he was 14 yrs of age , and further brought up and cared by his mother who borrowed money to send him to ECOLE Polytechnique in Paris (1821) from where , Darcy moved to SCHOOL OF BRIDGES AND ROADS .

First employed as Corps of Bridges and Roads. Darcy , having high aptitude and keen interest in Hydraulics , was instrumental in providing clean water to Dijon City through pressurized water distribution system due to failure of drilling wells in city. Darcy planned water supply thru aqueduct 12.7 km long from watercourse to city reservoir using sand filters.

His Famous Darcy Law is in form of modifications of Prony Equation for Head Loss , which was further improved by Julius Weisbach and is known as DARCY - WEISBACH EQUATION FOR HEAD LOSS.
In 1848 , Darcy was CE  and further raised to the level of Chief Director of Water Works and Pavements at Paris Office. In 1855 he resigned due to poor health but was requested to carry his research , carry experiments in the sand columns to conclude in form of Darcy Law.

Unit of measurements of permeability is named after Darcy.

He met early demise due to pneumonia while during trip to Paris in 1858 and rested there .
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PostPosted: Wed Oct 06, 2021 11:06 am    Post subject: Reply with quote

JULIAS  LUDWIG  WEISBACH ( 1806 - 1871 )

Born in Mittelschimiedeberg , Germany Julias was German Mathematician who wrote on HYDRAULICS , MECHANICS , SURVEYING , OPTICS , CRYSTALLOGRAPHY , MOUNTAIN MACHINERY ,  DESCRIPTIVE GEOMETRY  & MATHEMATICS. Such were his wide areas of studies .

Weisbach father was a FOREMAM IN MIME and with Nine children , family was not well off. Studied at schools near his hometown and completed courses in 1822.

For further studies finances were problem .  However on Moh's ( German Mineralogist ) advice his father sent him to Göttingen and further to University of Vienna where Weisbach studied Mathematics , Physics and Mechanics.

1830 , Weisbach travelled on foot for six months covering Hungary , Tyrol , Bavaria and Bohemia .
1831 , Weisbach returned to Freiberg and  taught mathematics at Bergackadmie in Freiberg and was promoted as Professor of Mathematics , Mine Machinery and Surveying.
His interest in Hydraulics started in year 1939 when he visited Paris for Industrial Exposition 1939. He refined Darcy 's Head Loss equation which is named after the duo as Darcy -Weisbach Equation .
Weisbach also contributed towards Surveying by introducing THEODOLITE  in place of  PLANE TABLE AND PROTRACTOR in mines and Mountain Surveying.

He contributed 14 Books and 59 papers on wide range of subjects.

He died in Freiberg Germany in the year 1871 .
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PostPosted: Thu Oct 07, 2021 7:05 am    Post subject: Reply with quote

PIERRE - SIMON  LAPLACE ( 1749 - 1827 )

Born in Normandy France ,  Simon Laplace was a prominent Mathematician , Physicist & Astronomer making crucial contribution s in arena of Celestial Mechanics of heavenly bodies in Universe , Analytic Theory of PROBABILITY and Statics , Differential Equations , Standardisation of European Weights & Measures  , Integral Calculus  , Theory of Black Hole .His works influenced many Mathematicians . He is regarded as French Newton.

His  father wanted him to be ordained in Roman Catholic Church and sent him to Ceon University to study  Theosophy . But young Laplace got interested in Mathematics  simultaneously studying Theosophy , and moved to Paris at age of 19 to work as Professor of Maths and in short span  gave 13 Sc Papers on Physics Astronomy , & Integral Calculus.

Laplace said that Nature of Universe is DETERMINISTIC.

From 1769 - 77 He was at ECOLE Militaire , and was Examiner of NAPOLEAN . He was  rewarded later in 1806 as Count of Empire and in 1817 as Marquis .

1778 saw him as Member of Paris Academic des Sciences and in 1785 raised to Senior position there.

1812 , Laplace 's  work on PROBABILITY was acknowledged.

He died in Paris in 1827
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PostPosted: Sun Oct 10, 2021 7:22 am    Post subject: Reply with quote

ROBERT  MAILLART  ( 1872 - 1940 )

Born in Bern Switzerland MAILLART was a Swiss CIVIL & STRUCTURAL ENGINEER  who revolutionised  the use of rcc for three Hinged Arch  Bridge in design of Salginatobel Bridge  and Deck - stiffned Arch Bridge in design of Schandbach  Bridge . He also ventured first to design  Beamless Floor Slabs , Flared Columns at top and bottom , Mushroom ceiling  for Industrial Buildings.

Graduated from Federal Institute of Technology Zurich  ETC 1894.
MAILLART never excelled in academic theories , but his visualisation of structure and analysing them with assumptions simplified the  highly mathematical oriented structural analysis. He was always annoyed with overuse of Mathematics for structure.
He was mentored by Wilhelm Ritter.

From 1898 , he worked in private firms at Zurich , but in 1902 , started his own firm . In 1912 during  Industrial Revolution in Russia , MAILLART moved to St Petersburg and gave class designs  for warehouses and factories. Unaware of World War , got stuck in Russia for some time and moved back to Switzerland ,penniless with heavy debts. However he re- established himself working at Geneva Engg Office.

Being Innovative Structural Analyser & designer with  extra ordinary aesthetic sense , MAILLART Bridges are class apart and in 1991 his Salginatobel Bridge (constructed in 1929 - 30) was accredited with HISTORIC CIVIL ENGG LANDMARK by ASCE.

His three principles were , simplified analysis using visualisation and assumptions , ;  Construction process based design  ; Testing on Full Scale after construction .

Robert MAILLART had intuition and genius to exploit aesthetics in Concrete.

He died in 1940 , Switzerland.
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PostPosted: Mon Oct 11, 2021 5:11 am    Post subject: Reply with quote

AVUL PAKIR JAINULABDEEN KALAM (1931  - 2015 )

Born in Rameshvaram , Madras Presidency during British India era ,Kalam was Scientist and Aerospace engineer who studied Physics and Aerospace engg. Kalam hold highest Office in Govt of India during 2002 - 2007 as 11th Indian President .His  contribution to Science and Technology in DRDO and ISRO  and development of Missile technology are exceptional and named as MISSILE MAN OF INDIA.

Kalam 's father was a boat man and used to pherry passengers from Pamban to nearby island (now inhabitated) , but with construction of Pamban Bridge , the father faced crisis financially due to stoppage of pherry services.  His father was also Priest (Imam) of Local Mosque and inculcated rich values and ethics in Kalam 's life. Family was so poor that Kalam has to distribute morning Newspapers to add to family income.

But Kalam wanted to study , and attended Hr sec school in  Ramnathapuram and graduated  in Physics from St Joseph College Trichirappalli in 1954 ,and thereafter  joined Aerospace Engg at Madras IT.

Kalam joined DRDO in 1960 as Scientist and got promotions as result of hard work and genius and visited NASA  in 1963-64 .Kalam was promoted to level of Project Director with transfer to ISRO in 1969 and responsible for successful launch of satellites in 1980.
He was Chief Science Advisor to the PM as Secretary to DRDO during 1992 - 1999 and Pokhran-2 Nuclear tests conducted .

His ethical life as devout Muslim appealed everyone . He was strict Vegetarian , non drinker . He remained unmarried and devoted whole  life to Society.

Dr APJ Kalam died of cardiac arrest while delivering a lecture at IIM Shillong , Meghalaya in 2015 . He was Padma Vibhushan as well as BHARTA RATNA Awardee.
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PostPosted: Tue Oct 12, 2021 4:55 am    Post subject: Reply with quote

CHARLES. EDWARDS REYNOLD ( 1900 - 1971 )

Charles E Reynold 's name is highly respected among all Civil and structural engineers over the Globe , as he along with his partners provided REYNOLD'S  HANDBOOK FOR STRUCTURAL DESIGN OF STRUCTURES at a time when even calculators were not there for doing even small calculations. This Handbook was first of its kind and a  Design aids to the structural and Civil Engineers .

Educated at Tiffin Boys School Kingston - on - Thames  and Better Sea Polytechnic. After education joined Pvt firm Lislie & Partners  and further appointed in Glower & Partners.

He was Technical editor of Concrete Publications Ltd  & later raised as Managing editor while simultaneously carrying  private practice.

In 1932 , Reynold Handbook was published and  over 2 lakh copies were sold by end of twentieth century.

Reynold authored many other books , papers & Articles on concrete design and construction.

He died in 1971 on CHRISMAS DAY.
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PostPosted: Wed Oct 13, 2021 8:27 am    Post subject: Reply with quote

WAYNE C  TENG ( 1917 - 1995 )

Born in Szechwan , China. , TENG  was a Structural Engineer  , Teacher , Executive  known for his original contributions  in development of new concepts in building structures ,  Management of interdisciplinary team ,  New structural forms with consideration to aesthetics , economy & Authored  many books of which 'FOUNDATION DESIGN BY TENG  is widely used in design Offices till today. TENG'S CHARTS FOR FOOTINGS SUBJECTED TO BIAXIAL MOMENTS are source of ready reference by the Designers of Structures.

In 1945 TENG moved to US to pursue MS (CE) and completed Phd in Civil Engg in 1949. He decided to Stay in US after onset of Chinese Civil War  and seek Citizenship there.

TENG'S mind was that of entrepreneur and started his own Consulting Firm in 1957 with his wife  Eleanor providing services in Structural Engg  , Architecture , with expertise in Buildings , Bridges , Expressways and Construction management.

TENG and Associate s was a preferred Consulatancy Firm due to effective inter disciplinary management of Civil , Structural , Architecture , Mechanical and Electrical disciplines under one roof.
TENG strongly believed in interdisciplinary working to avoid miscommunication  & misconception .  His firm contributed to several Public Works Projects in Chicago.

He was a regular Lecture giver on topics of structural engineering and Foundation designs at University of Illinois , Chicago.

Wayne C TENG  died of pneumonia in 1995.
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PostPosted: Fri Oct 15, 2021 2:46 am    Post subject: Reply with quote

RAYMOND JEFFERSON ROARK ( 1890 - 1966 )

Born in Greenville Kentucky USA ,  Raymond Jefferson ROARK  was Professor of Mechanics at University of Wisconsin US and is known for  his exceptional work of writing of ROARK'S FORMULAS FOR STRESS AND STARINS.

Published  first in 1932 , at times when software life was a dream , these formulas provided much needed support to Civil and Mechanical Designers . Formulas cover wide range  . Later co-authored by Warren C Young .

Not much is available about ROARK 's life on internet , hence a short commentary on him.

Professor ROARK died in Madison , Dane County , Wisconsin USA in 1966.
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PostPosted: Sat Oct 16, 2021 4:46 am    Post subject: Reply with quote

MICHAEL  JOHN  TOMLINGSON ( 1916 - 2011 )

Born at Scunthorpe UK,  Michael Tomlinson was an eminent Civil  and Structural engineer with huge contribution s to Science of Soil Mechanics and Structural engineering. HE WAS THOUGHTFUL UNASSUMING MAN AND GENEROUS IN SHARING HIS TECHNICAL KNOWLEDGE. He was always available to help young engineers , trained them on a field of which he climbed the ladder very hard. His generosity in sharing hard gained knowledge is examplary.

His father was Estate Manager and wanted to see his son as an engineer and sent him to Scunthorpe Grammar School . Started his career as Pupil of FARRAR in 1934  and moved in Middlesex Company as Engg Asstt.

TOMMY , as known to his friends , mates and GEOTECH Industry , investigated and designed Marine Jetties , Bridges , Buildings , Tunnels , Dams  and instrumental in devising innovative techniques of examining properties of soil and rocks.

1947 , joined Central Lab of George Wagey and Company and risen to level of  CE and further to Technical Director and formed outstanding team of engineers , Geologists and Geophysicist s carrying out various works in UK and abroad including Middle east.

TOMMY resigned from George Wagey Company in 1977 to practice as Independent Consultant  with expertise in Foundation design and Engg Geology.

He authored two classic Books :
PILE FOUNDATIONS / DESIGN &  CONSTRUCTION
FOUNDATIONS DESIGN & CONSTRUCTION

TOMLINSON was awarded as  fellow of ICE 1958 : Fellow of IStrucE in 1972 and was Chairman of British Geological Society from  1969 - 71.

TOMMY enjoyed gardening and was also Consulting Garden Designer.

Blessed with long life with career spanning over 6 decades , Michael Tomlingson died at age of 95 yrs in UK.
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PostPosted: Sun Oct 17, 2021 6:43 am    Post subject: Reply with quote

RICHARD ZDZISLAW TADEUSZ BEINIWSKI (1936 - 2017 )

Born in Krakow Poland , Z.T. BEINIWSKI was one of most prominent and influential Rock Engg Personalities having expertise in TUNNELING , MINING , CIVIL & PATROLEUM ENGG., though graduated in Mechanical engineering. His  ROCK MASS CLASSIFICATION SYSTEM based on RMR was acknowledged and Awarded.

His early education was at Gdansk University , Poland and further moved to Johensburg SA in  1950 at University of Witwatersrand for seeking BS and MS.  He was in Navy for 4 yrs as Naval architect and Marine Enginees. Finally completed Phd in Mining &Tunnel Engg from University of Pretoria SA in 1968.

BEINIWSKI wanted to be a professor of Geotechnical Engg and moved to US in 1977 and taught at Pennsylvania University for 20 yrs and was visiting professor of Cambridge , Harvard and Standford Universities .

BEINIWSKI ,s emphasis was on consistent use of Design Methods in Rock engineering. His theisis on BRITTLE FAILURE OF ROCK IN COMPRESSION AS WELL AS TENSION was also widely acknowledged and his Book Engineering Rock Mass Classification  is a complete Manual for engineers , Geologists , Civil and PATROLEUM Engineers .

He trained everyone who came to him , as he firmly believed "IF YOU HAVE KNOWLEDGE SHARE IT THROUGH WRITINGS , thus giving 10 Books and 30 papers. BEINIWSKI firmly believed in famous quote "ENTHUSIASM IS THE GREATEST ASSET WHICH BEATS MONEY , POWER AND INFLUENCE."

He retired at age of 60 yrs and written three Non - Technical books :
Fantasy story of his grandson : Non  - Fiction Discourse on Reconnaissance Retirement  ;  Murder Mystery Novel.

Z. T. BEINIWSKI died in 2011 in Presscot City , Arizona ,USA.
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