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structures (typesof force (mechanical force, pressue of gases, wind force,…
structures
typesof force
mechanical force
pressue of gases
wind force
muscles force
gravity
heat force
types of stresses
compresion
forces try to flatten a body
torsion
forces try to twist a body
bending
forces try to bend a body
shear or cutting
forces act like scissor blades
traction
forces try to stretch the object they act upon
structures
all bodies have a structure that can resist forces
forces that act on a structure are called loads
two types
fixed or permanent loads
not vary over the time
variable loads
occasionals and changeables
stresses
it is the internal tension that the objects and the living things fell
it varies depending on
caracteristics of the loads
shape of the object bearing the loads
it is anything that can deform an object or change its state