Recent content by chandran

why composites are built in form of laminates(laminas with various orientation)?. why can't a single lamina serve the purpose? how a single laminate property is different from a single lamina property

there is a wheel. A shaft which rotates about a pivot point a is connected to the wheel at the point b. what is the influence of the distance a to b in the torque applied to the wheel . the wheel just rests on the shaft at point a and it is not welded to the shaft.

If a force is applied at centre of mass the object will only translate and not rotate. Can anyone proove this mathematically?

In the steady state heat conduction through a solid rod the theoretical derivation tells that heat in-heat out-heat accumulated =0. What is a practical steady state heat conduction problem? what is transient heat conduction

In mechanics problems why always the force systems are replaced by force and couple systems. any practical example is available?

My observations 1)a spring gives a force proportional to the relative displacement of its ends 2)a damper gives a force proportional to the relative velocity of its ends What does a mass do I read in a theory that a mass gives a force proportional to its acceleration and this force...

when a couple acts on an object it will tend to rotate it and it will not tend to translate it But the sentence "tend to rotate" but tend to rotate about which point or axis?

i have a spring with stiffness k. The spring is resting on the ground. Now a mass is kept over the spring. Now the spring deforms by an amount x=mg/k where g is the gravity's acceleration.The force acting on the spring is mg Newtons and the reaction force from the ground is also equal to mg...

strain energy why do we study strain energy and strain energy density in a mechanics course. what is the application?

gokul, i understood the stress part. I a axial loaded member how come a shear stress occur?

correct me if wrong an accelerometer consists of a mass(proof mass). say the proof mass is x kg. The accelerometer sensed the acceleration of the proof mass. suppose the accelerometer reading is y can i say the force acting on the proof mass is x.y? Some theory says that the...

gokul, i understand it like this. any material when subjected to loading will reorganise itself into a new shape and then apply a counteracting load this reorganisation is called strain and the response is the stress

I want to know in mechanics of materials what is the real objective of finding the deflections at various points in structures like 1)deflection in the end of an axially loaded bar 2)vertical deflection along the beam length 3)beam slope along the beam length 5)torsion bar twist...

centre of mass There is a mass at a position vector r1 from origin. like wise there are different masses at different r from the origin. the centre of mass is the distance in which the entire mass can be concentrated at some distance R which will give the same EFFECT as that of the...

i want to understand finite element method by solving the simple differential equation of falling mass d2y/dx2=force/mass eventhough this equation contains derivative of only one variable i want to understand fem using this Or some one can give a somemore difficult pde and solve using...