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WorksheetsFundamentals of Strength of Materials
Total questions: 10
Worksheet time: 5mins
What is the definition of stress in materials?
Stress is always the force per unit area
Stress is the internal resistance of a material to deformation
Stress refers to the measure of deformation in a material.
Stress is the weight of a material under load.
How do you relate stress and strain.
strain is proportional to stress until breaking stress is reached.
Strain is independent of stress in all materials.
Stress only occurs in plastic materials.
strain is proportional to stress within the elastic limit of materials.
Which elastic constant is associated with shear phenomenon?
Young's modulus
Poisson's ratio.
Flexural strength
Rigidity modulus
Deflection in a beam is MOST influenced by
depth along the direction of loading.
length.
breadth in a direction perpendicular to the direction of load.
not influenced by any cross sectional parameters.
Where BENDING MOMENT will be maximum on a slender circular simply supported beam subjected to vertical point load at midspan?
entire outer layers
at the core
at midspan
at the supports
When particle idealisation is taken in mechanics?
if moment exists
For non coplanar force system alone
coplanar force systems
for concurrent force system
How many independent components are there in the state of stress at a point?
3
6
9
12
How do you calculate the shear stress in a beam?
τ = VQ / Ib
τ = P / L
τ = M / I
τ = F / A
Explain the concept of yield strength in materials.
Yield strength is the point at which a material begins to melt.
Yield strength is the amount of energy a material can absorb before breaking.
Yield strength is the total load a material can carry before failure.
Yield strength is the maximum stress a material can withstand without permanent deformation.
What is the role of Poisson's ratio in material behavior?
Poisson's ratio describes the electrical conductivity of a material.
Poisson's ratio is the measure of a material's density.
Poisson's ratio indicates the thermal expansion of a material.
Poisson's ratio measures the ratio of lateral strain to axial strain in a material.
