FIRST COURSE FINITE ELEMENT METHOD
FULL ANSWER BANK 2026 ACTUAL
PROBLEM SOLUTIONS CERTIFIED
⩥ What was a significant flaw noted by the authors of Elementary
Matrices? Answer: The book felt dated and lacked coherent
interweaving of modeling and application examples.
⩥ What did the authors of Elementary Matrices feel about their work?
Answer: They did not regard it as particularly good, feeling it was more
of a task than a desired project.
⩥ What was the focus of the modeling in the book Elementary Matrices?
Answer: Dynamics of a complete airplane and integrated components
like wings and rudders.
⩥ What type of analysis was typically absent in pre-WWII aircraft
design? Answer: Static stress analysis.
⩥ What is the significance of load-dependent stiffness terms in matrix
treatment? Answer: They represent an early development in the
treatment of stiffness matrices.
,⩥ What was the primary motivation for introducing matrices according
to Collar? Answer: To provide a neat and compendious statement for
problems like ternary flutter.
⩥ What did the silent period from 1938 to 1947 represent in matrix
research? Answer: A gap between the publication of Elementary
Matrices and the first journal publication on the matrix Force Method for
aircraft.
⩥ What challenges increased interest in stress analysis during WWII?
Answer: New demands posed by high strength materials, higher speeds,
combat maneuvers, and structural damage survival.
⩥ What increased interest in stress analysis during the post-war period?
Answer: New demands posed by high strength materials, higher speeds,
combat maneuvers, and structural damage survival.
⩥ What traditional methods were used for beam-like skeletal
configurations? Answer: Flexibility-based methods such as the Classical
Force Method (CFM).
⩥ How were flexibilities measured in the past? Answer: By
experimental static load tests.
, ⩥ What technological advancements were used in stress analysis during
this period? Answer: Punched-card computers and relay-calculators.
⩥ What was a significant challenge in tracing MSA work in aerospace?
Answer: Publication restrictions that followed a blackout.
⩥ What shift occurred in MSA work as it progressed from 1947 to 1956?
Answer: The focus shifted from dynamics to statics, especially stress,
buckling, fracture, and fatigue analysis.
⩥ What major events forced attention on stress concentration and crack
propagation? Answer: The Comet disasters due to cyclic cabin
pressurization.
⩥ What type of design gained importance in response to new demands
in aircraft design? Answer: Failsafe design.
⩥ What was the first electronic commercial computer? Answer: Univac
I, manufactured by Remington-Rand.
⩥ What was the significance of the Univac 1103? Answer: It was the
first computer with a drum memory, introduced in 1952.
FULL ANSWER BANK 2026 ACTUAL
PROBLEM SOLUTIONS CERTIFIED
⩥ What was a significant flaw noted by the authors of Elementary
Matrices? Answer: The book felt dated and lacked coherent
interweaving of modeling and application examples.
⩥ What did the authors of Elementary Matrices feel about their work?
Answer: They did not regard it as particularly good, feeling it was more
of a task than a desired project.
⩥ What was the focus of the modeling in the book Elementary Matrices?
Answer: Dynamics of a complete airplane and integrated components
like wings and rudders.
⩥ What type of analysis was typically absent in pre-WWII aircraft
design? Answer: Static stress analysis.
⩥ What is the significance of load-dependent stiffness terms in matrix
treatment? Answer: They represent an early development in the
treatment of stiffness matrices.
,⩥ What was the primary motivation for introducing matrices according
to Collar? Answer: To provide a neat and compendious statement for
problems like ternary flutter.
⩥ What did the silent period from 1938 to 1947 represent in matrix
research? Answer: A gap between the publication of Elementary
Matrices and the first journal publication on the matrix Force Method for
aircraft.
⩥ What challenges increased interest in stress analysis during WWII?
Answer: New demands posed by high strength materials, higher speeds,
combat maneuvers, and structural damage survival.
⩥ What increased interest in stress analysis during the post-war period?
Answer: New demands posed by high strength materials, higher speeds,
combat maneuvers, and structural damage survival.
⩥ What traditional methods were used for beam-like skeletal
configurations? Answer: Flexibility-based methods such as the Classical
Force Method (CFM).
⩥ How were flexibilities measured in the past? Answer: By
experimental static load tests.
, ⩥ What technological advancements were used in stress analysis during
this period? Answer: Punched-card computers and relay-calculators.
⩥ What was a significant challenge in tracing MSA work in aerospace?
Answer: Publication restrictions that followed a blackout.
⩥ What shift occurred in MSA work as it progressed from 1947 to 1956?
Answer: The focus shifted from dynamics to statics, especially stress,
buckling, fracture, and fatigue analysis.
⩥ What major events forced attention on stress concentration and crack
propagation? Answer: The Comet disasters due to cyclic cabin
pressurization.
⩥ What type of design gained importance in response to new demands
in aircraft design? Answer: Failsafe design.
⩥ What was the first electronic commercial computer? Answer: Univac
I, manufactured by Remington-Rand.
⩥ What was the significance of the Univac 1103? Answer: It was the
first computer with a drum memory, introduced in 1952.
