Introduction to Strema Flashcards
Why study strength of materials?
This knowledge is critical in designing
safe, efficient, and sustainable structures.
respond to various forces and loads, ensuring their
stability and integrity.
innovative design solutions
it is a cornerstone of the
profession, enabling engineers to create the built environment of the futureit is a cornerstone of the
profession, enabling engineers to create the built environment of the future
Importance of strema to civil engineering
Design and safety, Material selection, Innovation and Optimization
Role of strema in structural design
Engineers must understand the
stress-strain relationship to
choose appropriate materials
and design structures that can
withstand expected loads
without failure.
A world without the study of strema is
Structural failures, lack of innovation, economic and environmental impact. stagnation in infrastructure development
Focuses on objects at rest
Statics of rigid bodies
Deals with objects in motion
Dynamics of rigid bodies
deform
under load but return to their original
shape and dimensions when the load
is removed
Elastic bodies
It examines how materials deform under various forces
Strength of materials
materials that
undergo permanent deformation under
load beyond their elastic limit.
plastic bodies
Used to test materials strength
universal testing machine
ratio of the material’s or structure’s ultimate strength to applied stress.
factor of safety
accounts for uncertainties in material properties, load
estimations, environmental conditions, and potential human errors in design and
construction
margin of safety
is integral to
structural design, serving as a buffer that
ensures reliability and safety under
normal and extreme conditions.
Factor of safety
Types of loads or forces (5)
tensile, compressive, shear, bending, torsional
it is the force times the moment arm
moment
